two stroke bike? Answered

Would a two stroke engine power a bike at 200cc

Question by rocketman217   |  last reply

turbo two stroke?

How would you put a turbo on a two stroke? what i want to do is a strictly electric driven one rather than exhast driven because i dont want to have to deal with all the small stuff and the engine is only 25cc if i cant do it do you have any suggestions on how to up  the hp?

Question by BIGHAIRYDUDE   |  last reply

2-stroke Engine Fuel

To anyone with 2 stroke engine knowledge; can mixed petrol and 2-stroke oil be used again? Or does a fresh mixture need to be created every time? 

Topic by Aspiring Mechanic   |  last reply

i need to know how to make a 2 stroke run backward?

I am converting a pocket rocket from electric to run on a weed wacker engine but, the engine rotates the wrong way. any advice on how to get it to run the other way. i am most confused on how to change the timing to fire at the right time going backward. thanks

Question by sirchioi   |  last reply

can i unsieze a pocket bike engine?

It has been siting outside for a while, so water might have gotten into the cylinder [no muffler]

Question by evilsci   |  last reply

How does this engine work? Answered

I have a mini moto engine which i'm going to use to power a go kart type thing. I need help identifying the different intakes as it looks like there are three holes. I think the middle one is to attatch a throttle cable, but what of the other 2? One already has a pipe attatched to it (right hand side) and the other (left) looks like it has a fuel tap. I'd guess fuel and oil, but I always thought that had to be premixed, so shouldn't there only be one hole? Any help in identifying the different bits would be appreciated. Chip.

Question by chip123   |  last reply

Small 2-stroke Turbocharger

I was wondering if any one had heard of attaching a small turbo charger to a lawn mower or weed whacker , if anyone has heard of it could you explain how, as i am anxious to try this with my recently salvaged 2 stroke and just see as much power i can suck from it.

Topic by firemanfu   |  last reply

50cc 2 Stroke Tuning? Answered

I have an old moped that I got for cheap and I am trying to fix it up. I replaced the carburetor and the new one is a little bigger even though it is off of another 50cc. It insisted on running extremely lean, but I was able to get the fuel/air mix balanced by putting some foil tape over part of the intake to get more vacuum behind it. It will only run right if the exhaust is on so that it is not lined up perfectly with the exhaust port on the cylinder. If the exhaust is taken off it will start first kick, but if it is lined up the way it should be it will not start. I took it off today and when I put it back on as close to the way it was before it would start but is now running very lean, beyond what I can tune out with the carburetor. If I give it full throttle it bogs and has no power, but it has fair power at 1/3 to 1/2 throttle. It also is getting really hot and has absolutely no power once it gets very hot. Yesterday I hat it all just right and it ran with none of these problems except that full throttle was still not where it got full power. Does any one have any ideas about what I have to do to make it run right? Maybe there is no option but careful misalignment of the muffler? --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- It turns out that the problems were that the muffler was clogged, and that it was running too lean at first, but too rich once it warmed up. Thank you for you suggestions.

Question by Jaycub   |  last reply

2 stroke motor help?

Hi guys I built something similar to this anyways the coil thingy that the guy cut a circular hole for came off my engine. There's magnets in it. I'm pretty sure that the magnets drive the spark plug as there's a small black piece that hooks to the plug. So am I screwed?

Question by thejrb   |  last reply

My Cycle Two Stroke Engine

Hello everyone, I wonder if any one can help me? I have fitted a two stroke engine kit to a cycle of mine, the thing was running perfect for 220 odd miles then starting stopping and would start again after a few minutes of pedalling. I have changed the petrol mixture and this has seemed to alter things slightly, now it will go but will not rev and only goes to a certain speed then starts kangarooing. When I engage the clutch it will not ideal it just conks out. Could there be something wrong with the accelerator perhaps? Thanks a very frustrated Paul

Topic by Paulygriff   |  last reply

can my left arm get recovered from my stroke what ive had?

 i have had a brain hemmaradge and a stroke when i was 11 and my arm has got a lot better since then . im now 13 and i need some advice for some things what can help it get better. can anaybody plz help if you want to talk on msn hers my addy thanks for listning to this plz plz plz help me.

Question by kray953   |  last reply

Can a diesel run on 2stroke fuel/be supplemented with 2 stroke fuel mix? Answered

Hi all can a diesel run on 2stroke fuel mix if the 2stroke oil was added to the petrol in heavy enough quantities so that 1. It off set the octane rating of the petrol so that it acted like diesel? 2. It was blended with diesel to supplement the mix?  The reason I ask is that there is a lot of mistakes made at the fuel pump with people putting fuel in diesel and I was wondering if the petrol was know, that a measured amount of 2stroke oil was added that this would solve the problem, rather than the expensive issue of towing, draining and repairs? I have had this experience and drained most of the petrol and then added motor oil to the new diesel to help lubricate and no dramas. Positive comments please.

Question by Gero wheels deals   |  last reply

The Dangers of Disney

I was trying to find out who was currently leading the US presidential polls, when I got distracted by an item on Freedom of Information. That led me to this article. Isn't the internet wonderful?Inhaling helium to produce an amusing squeaky voice (a favourite game for children in the United States and Europe) may not be the innocuous party trick it seems, according to emergency medicine physicians at the Wesley Center for Hyperbaric Medicine in Brisbane, Australia (Annals of Emergency Medicine 2000;35:300-3).Simon Mitchell and colleagues report the case of a previously healthy 27 year old man who inhaled helium and subsequently developed a stroke with transient blindness and radio-graphic evidence of cortical infarction. However, the man had inhaled the gas direct from a pressurised canister, whereas most children who perform the trick - to imitate the voice of Mickey Mouse - inhale the gas from helium filled balloons.The patient developed rigidity and lost consciousness within moments of inhaling the helium. On arrival at the emergency room 15 minutes later, he regained consciousness but was found to have complete visual loss and evidence of cortical infarction.PubMed ArticleI still haven't found out who's leading, though...

Topic by Kiteman   |  last reply

I would like to shift a logic 1 though pins 10, 11, 12 and 13 by a pulse at pin 2 from button inputs. please help.

On an Aduino no I would like to make pin 2 an input. Pin 10, 11, 12 and 13 out puts which will go high then low in turn on subsequent pulses on pin 2. I want to drive 4 LEDs one after the other on and off. If I press and release button at pin 2, led 10 comes on. when I press the button the second time, LED 10 goes off then LED 11 comes. on the next input pulse LED 11 goes off and LED 12 comes on. On the next pulse LED 12 goes off and LED 13 comes on.on the next pulse LED 13 goes off and LED 10 goes on again  Please help

Question by nyama   |  last reply

Are there small car-like motors out there?

I've been wanting to teach myself more about mechanics, and I want to work on a rebuild project. There are problems though: my workshop is small, I don't have a shop-crane, and there's not a lot of money to put into it. I was wondering If there are any motors that are just like that of a car's that are small, cheap, and readily available. I've taken apart a few two- and four- stroke engines, nothing more than a lawnmower. I want to self-educate myself more. Thanks.

Question by DIY Emilio   |  last reply

Paper two stroke hydrogen engine

 Ok so I have this crazy idea to make a two stroke engine out of paper that runs on hydrogen and well ive allready built part of it just the piston head and cylider and stuff but if i lined the inside of the cylinder with tin foil would that be enoth to keep the paper from burning? and so ya anyways the engine of i have made allready is very sturdy each peace is 10 sheets of paper or more compressed for over 24 hours  now the compression im not two worried about because its more of the sheer pop of the explosion that will push the piston down well i guess thats how it is anyways but if the gas ignites anyways with oxygen why have compression  for this anyways because the explosion is going to be soooo small anyways that it wont really matter much.  the overall size of the engine is about almost 2" tall by about 1" wide on the widest part the bottom . So um I know by now im classified as "CRAZy" but that asside can i get some opinions and ideas plz. thanks MRN

Topic by mrn   |  last reply

Why won't my two stroke run?

I have a two stroke weed eater engine (actually from a tiller but it's the exact same) and I am having trouble getting it to run. I have the carb screw tightened all the way so the carb is opened up as much as it can be but when I start it, it coughs like it wants to die then it dies. If I squeeze the throttle a little it will continue running or if I squeeze it all the way it will still run. It just won't run if I let it sit. Also, I am intending to use it to put on a bike and it has a clutch but it doesn't really work that well. It will engage without even squeezing the throttle. Any idea of where I can get a small geared clutch that will fit it? Thanks.

Question by chiefs543   |  last reply

Where to find 2 stroke engines?

I am looking to find small 2 stroke engines for cheap/free. I am not sure where to look. The side of the road, craigslist,and ebay have been of no help to me. I need something between 40-50cc and would like some god places to look. Thanks guys!

Question by trf   |  last reply

Solder smoke stroke my eye

Hey i was soldering a circuit with out a eye protections and then the smoke which came out make my eyes itching and then i washed it with water and later my eyes was all red and started to itch. So i was wondering if this could do any damage to my eyes ?

Topic by arylic   |  last reply

Chainsaw project, what would You like to see

I got a craftsman 40cc chainsaw donated from work. Anyone got some ideas for what to use it as? Ive thought about powering a bike with it, using mountain bike gears. Ive thought about using it to make power for at my cabin. What kinda crazy 2 stroke powerd thing would you like to build or see built?

Topic by quadracer   |  last reply

does anyone know if a two stroke engines can run on there side? Answered

As i am currently making a motor bike and have a 2 stroke engine to put on it.

Question by rocketman217   |  last reply

Help with 33cc Gas Scooter? Answered

I have a 33cc gas scooter (sounds nerdy, I know), on the side I can make out what looks like Moto Rebel but not sure. It was used twice, sat in garage for one year without gas in the tank, then sold to me for $20 (Amazing price for something that's $350 new). Like new! It is 2-stroke but am unsure of the model number. It starts runs on choke between a small margin but won't run on ON, which is above choke on the switch. I think it may need the idle screws adjusted but am unsure. Has new and correct gas oil mix in tank and has primer button. Help would be appreciated.

Question by Electric Spectre1   |  last reply

How do i check if a single stroke motor is in good condition? Answered

Currently i have a single stroke ENYA model 3304 petrol single stroke rc  airplane engine. I dont have the fuel tank nor do I have a fuel hose nor do I have the fuel. So how do I actually check it? Is it possible to make the fuel? Also, what use do i have of this engine besides using it for a rc airplane?

Question by Boppo3   |  last reply

motorbike engine tuning

Just download and start reading

Topic by axeman.99   |  last reply

Rc airplane fuel for 2 and 4 stroke engines

I want to make my own home brew nitro rc fuel

Topic by TerryE39   |  last reply

Camping tips for people prone to heat stroke/exhaustion?

My fiance has never formally gone camping. She has a cabin up in the black hills of South Dakota but she has never gone camping. I want to bring her camping this summer but She prone to heat stroke. I'm wondering what are some things I can do to make things easier for her to enjoy camping aside from finding the ever so obvious shady area. Any ideas? Thanks in advance!

Question by paininthebutt   |  last reply

wiring limit switches on a linear actuator

I am trying to wiring two limit switches onto a linear actuator. One to stop the extend stroke but will allow you to retract the actuator. The other limit switch will stop the retract stroke but allow you to extend the actuator. The actuator is installed on a door I need it to stop on the extend stroke and the retract stroke so it doesn't damage anything. I have an LACT8-500A actuator and the company doesn't make a limit kit for the adctuator.

Topic by youaintwrong   |  last reply

difference between marine and normal oil

I need to mix gasoline with 2-cycle oil for my 2-stroke chainsaw and i only have marine 2-cycle oil. is it ok if i use this or do i need to use regular 2-cycle oil?

Question by Sun Gear   |  last reply

Wisconsin AEN LD 2 stroke 9.2 hp engine?

I've just got hold of a rail section car with the above engine fitted. It had not been used for a couple of years but we managed eventually and started playing. The problem I have is it travells in one direction well but in the other direction it 's hard to start and looses power. It also over heats  I would say it has something to do with the mag and timing. Can someone please help.

Question by Leachie01 

Wat is the best way to fix / improve a boggy 4 stroke dirt bike my means of cleaning it or buying new parts? Answered

I have a 4 stroke 50 cc panterra dirt bike and the engine bog if you turn the throtle too quickly insteadof slowly twisting it . how can i improve the throtle response by means of cleaning it or buying H.P. parts

Question by Whitedude0728   |  last reply

What is the choke for on an gas motor ? Answered

You may think im noob but heres my question, What is the choke for on an gas motor ? Like on the lawn mower, you put on choke to start it, but what it is actually doing? Thanks!!

Question by Patented   |  last reply

this isn't a question its a statement on a question i asked earlier

Earlier i asked about putting a turbo on a two stroke weedeater motor. i tried it and IT WORKED. it made the rpms triple! it worked to a point so if its too much then it will actually not work and slow down the motor. and it sounds cool 

Question by BIGHAIRYDUDE   |  last reply

Gas engine tachometer phone app?

Does anyone know of a tachometer app for a phone or PC that can estimate gas engine rpm by sound? One would enter options like 2-stroke or 4-stroke and number of cylinders, then hit the analyze sound button. I found one for RC helicopter rotors but couldn't find anything else.

Question by robbtoberfest   |  last reply


So I got this awesome idea to make a trike with a snowmobile donor. Use the snowmobiles motor and track for the rear "wheel", and a gokart style front end, with 2 wheels, spindles, maybe suspension, etc.  Nothing too big, maybe 400cc or less. 2 stroke of course =D. I am proficient in fabricating, welding, and have a full auto shop worth of tools, so the actual construction shouldn't be a problem. However, I need to know some things about the snowmobile drive train.  Would the track itself work on dirt, light mud, light puddles (2-4 inches deep), and maybe some sand? If not, are there any tracks available for such terrain? Do most snow mobiles have the engine mounted infront of seat, below, or behind? This thing looks wicked cool in my mind.  OH, heres a good way to put it. Like a snowbike (Dirt bike with tracks in back), with two front wheels. Or a honda ATC with tracks flipped rear/front.

Question by LiquidLightning   |  last reply

Painting wood (any tips?)

I want to refinish a cabinet, is there a way to make the paint super smooth? (without the ugly brush strokes)

Topic by bronevaya   |  last reply

4-STROKE OUTBOARDS are the only ones sold here, and they are quite expensive $1,000-$2,000

My son and I have always wanted  an airboat. However, the price of these Yamaha outboards are out of reach for us. I grew up with a 6 1/2 hp Johnson, but I guess those type outboards aren't available anymore. Are there less expensive motors available for this project? Thank you, Judy

Question by Judy Eggart   |  last reply

I need to re-pack a worn-out muffler for a small engine. Where/what do I buy to do the job.?

The engine is a small Tecumseh 2-stroke - no longer made, one tough little work-horse! I packed the muffler with a copper scouring pad; still too loud and poor back-pressure, which can wreck a 2-stroke, I'm told

Question by dartmouthguy   |  last reply

Make a banner for cheap ?

Hi! I'd like to make banners for a fundraising event. I have a 60cm plotter I'd like to use with a pen to do the strokes, something I've already done in the past, but the problem is not here. After that, I'd like to fill the stroke region, like letters and logos, but I don't want to use 10 marker pens just for one letter, do you know what I could use to make nice, cheap and fast fillings ?

Topic by Anykey   |  last reply

New Sport!! Combine Golf with Archery!

I have an idea for a new sport. If you combine golf with archery, you'd get Golfery! The concept is simple with only some minor modifications. Arrowheads now have a golf ball or ping-pong ball for a head. To get a hole in one, the player must hit the flagpole in the pocket. There are (3) 1 foot wide rings concentrically spaced around the flagpole. Inner ring = 1 stroke, middle = 2 strokes, outer = 3 strokes. If the arrow lands outside of the outer ring, the player must pick up the arrow and gently toss it underhand towards the pocket. Other than that, the standard rules of golf are followed. I don't have the equipment to test out my ideas. If someone here would try it out and PM me with the results and any suggestions that would be great.

Topic by javajunkie1976   |  last reply

what do you do for the gas/air ratio on a weedeater 2-stroke? Answered

i made a motor bike and i rode it over 137 miles so far, it hasn't given me much problems except one day it lost compression so i rebuilt it and i put in a new sparkplug and rebuilt the carb after it was running better than ever and the next day i went to ride it and it wouldn't start so i cleaned the carb again, then it was working again but it was like there wasn't any gas, i used to be able to go 29mph now i can only go 16mph with the wind, if i give it too much throttle it will bog down and slow down, so i can only give 1/4 throttle. i have tried messing with the pin in the carb and the tuning screw but they don't seem to do any  thing, what is wrong?

Question by BIGHAIRYDUDE   |  last reply

Can Non-Hybrid Cars Get 100+ MPG Today?

  We're not talking about hybrids here; our topic is cars powered by the basic IC-engine that relies on gasoline and not electric motors. Today's gasoline engines are not designed to combust/burn gasoline efficiently. Even with the advent of using high pressure fuel injection techniques that are computer controlled, we still fall short of the mark. Partly because liquid gasoline can't burn, only gasoline vapors burn, and there lies our problem. The same goes for injecting the high pressure droplets of fine-mist liquid gasoline that enters the engine cylinder using our current nozzle ejector technology, it doesn't all burn at the same time! Engine designers assume that these droplets are instantly vaporized by the engine's hot cylinder walls, and then instantly explode/combust when ignited by the sparkplug. Not true, up to 2/3 of the fuel isn't vaporized and doesn't combust until later on in the cycle. The 1/3 that gets almost-instantly vaporized and burns will do so within the several thousandths of a second (Fig-1) it has before the piston moves down its 1/2-stroke (out of today's 4-stroke cycle) completing the engine power-portion of its cycle. This releases power and tremendous heat which indeed vaporizes the remaining ~2/3 of our fuel from its liquid droplet form, but too late. It essentially does so when the power stroke is almost over or the piston is just about ready to move into its up-stroke (2nd stroke of our four stroke cycle) phase. So, because of poor vapo-timing we have 2/3 of our fuel virtually wasted by exploding at near the bottom of the power stroke. This incorrect explosive timing, which happens to most of our fuel, imparts very little energy into the crankshaft because its effective "moment" (a product of explosive force and radial-component distance from crankshaft center) is insignificant by then. Various attempts at adjusting the combustion timing spark hasn't made a significant difference. Even though ~2/3 of the fuel is now exploding and providing a huge force, its small "influence" arm distance is rapidly diminishing to zero, and any huge downward force times near zero arm-length is still zero. Some clarification here, technically thermal-efficiency is not improved, pretty much all of the gasoline gets combusted today. That means the energy of the fuel is almost totally released, but not effectively used. The problem is the timing it takes to convert fuel-injected gasoline droplets into vapor to combust at the correct engine rotational time and extract that expended energy. If you did the math for any size engine rotating at say 3200 RPM, you would find that a 4-stroke engine can only extract that energy from combustion during one of the four strokes. And the time it takes to make that stroke happen is only about 9.4 thousandths of a second or 9.4 milisecs (msecs). Now picture the piston just below TDC, all its valves closed, under pressure and containing all the fuel and air it needs to combust. At this point our deadly cocktail has about half of the 9.4 or about 5 msecs to complete combust after the timed sparkplug ignites it. The half factor exists because the max portion of our power stroke (moment arm) occurs at the mid-stroke of the piston sliding down and turning the crankshaft. If all of our fuel isn't combusted by then, the moment-arm or distance from the piston-center to the crankshaft quickly reduces to zero. Again, only vapors combust within a healthy 2 msecs (Fig-1), while fuel droplets take a relatively long time (>5 msecs) to vaporize before it can combust. Unfortunately nature is stubborn and vaporizes ~2/3 of our injected fuel droplets only during roughly the second half of the power stroke. So this huge amount of energy gets wasted because even though the forces of combustion are huge, its moment arm is rapidly approaching zero. Infinity times zero is still zero! Engine designers/engineers have been plagued by this phenomenon ever since the creation of the 4-stroke gasoline or Otto cycle engine. We need to improve this intermittent combustion/explosion process by combusting all of our injected fuel at the correct timing sequence. This is accomplished by injecting only vaporous fuel which will produce ~3X the power we now get. Another way to state this is, for the same power that we now get from a gasoline engine, if we burned the fuel correctly, we would only need 1/3 the fuel consumption to get 3X the current MPG.

Topic by RT-101   |  last reply

Is there a way to download/privatize multiple Instructables projects at once en masse?

Is there a way to download/privatize all of one's own projects in a single stroke?

Question by OrigamiAirEnforcer   |  last reply

Just wondering about 2stroke in a 4stroke engine...

Soo, currently teh lawnz needs mowing, but there's no petrol.... for the lawn mower, that's four-stroke (straight unleaded & oil seperate) there's two-stroke stuff though(50:1 ratio or so), I did try a little in the tank, which seemed to work okay, but concerned parents are wondering it might make it choke the mower to death, can someone please confirm what can happen, and what will most likely happen. =) -Thanke!

Topic by ll.13   |  last reply

Microlight trick

Hii want to make a microlight trick .and i want to use a honda G200 engine with 4 stroke i would like to know if it is possible,email conlens@hotmail.comthanksSean

Question by ShaE3 

Does a 2-stroke Honda CB 100 NE engine need a battery to run? Answered

I have a Honda 2-stroke CB100NE (1018034) engine which I am trying to get working. This is the first time Ive worked with an engine so my knowledge is quite fragmented. So far the engine will turn over using the kickstart but I've been unable to get a spark. Documentation for this specific engine seems to be quite limited but I found a service manual claiming that the generator goes into the battery which then drives the spark plug via the coil, points etc. However, a friend told me that the spark plug can be run directly off the generator/magneto, and since the engine isn't in a motorbike which would require lights and a horn the battery isn't necessary. I'm also not sure how the rectifier plays into this if I'm not having a battery - is the rectifier only there to facilitate charging of the battery? So my question is, does my engine need a battery to power the spark plugs and if so, do I need to use the rectifier? Any help would be greatly appreciated. 

Question by Ikkalebob   |  last reply