Change the Oil in a Vintage Honda CB100
Intro: Change the Oil in a Vintage Honda CB100
I've had this bike for a while and have decided it's time for an oil change as I've not done that yet on this bike. so here we go.
first, it helps to have a service manual... for capacities and torque specs
first, it helps to have a service manual... for capacities and torque specs
STEP 1: Drain the Oil
STEP 2: Remove Kick Stand
to remove the clutch cover to access the centrifugal oil filter you'll need to remove the clutch side crankcase cover. This requires the removal of the kick starter, the foot pegs and the exhaust system.
STEP 3: Remove Exhaust
STEP 4: Remove Kick Starter
STEP 5: Loosen Screws on Clutch Cover
Make sure you use the correct screwdriver there are many types of "phillips" screws. they are NOT the same. These screws are easy to strip the phillips head. after some rummaging I was able to find the correct screwdriver and removed all the screws
STEP 6: Whack It!
breaking loose the cover is easy with a couple taps of a rubber mallet
STEP 7: Save the Gasket!
I didn't have a replacement gasket on hand so I tried to save as much of the gasket as possible and will be sealing it with gasket maker upon reassembly.
STEP 8: Clean It!
clean out any sludge you see as well as anything you might find in the centrifugal filter
STEP 9: Back Together!
I'm pretty sure that this is from my grandpas time and probably highly toxic but it works wonders!
STEP 10: Remove Filter Screen Cover
STEP 11: This Is What Comes Out...
clean the screen well and check for any metal filings.
STEP 12: Shine It Up!
before putting the bike back together I decided to do some polishing... it's easier with the parts off... and why not?
STEP 13: Test Ride!
After putting the bike back together and filling the fluids of course!
after a short ride make sure everything is torqued correctly and there are no leaks! and you're done.
after a short ride make sure everything is torqued correctly and there are no leaks! and you're done.
16 Comments
st1sking 9 years ago
Thanks for the info. I recovered my late father-in-law's '72 cb100
from the woods where it has been laying for 27 years. I need to do a
full restoration on it, down to the frame. Being a car guy, I have the
skill, but have never touched a motorcycle before. It's nice to have a
place to see step by step instructions for some of the tasks.
josh 10 years ago
Ladalske 10 years ago
I have the same bike. What tires do you have on it? I am looking at different sizes and it looks like yours are balanced. I have 3.00 x17 on the rear and 2.5 x 18 on the front.
Thanks
Dulaya 11 years ago
Could it be that I put too much oil? The manual recommends 1 liter, which is just over 1 qt. What about the muffler? I think I put it back correctly.
josh 11 years ago
As for your starting issue it is hard to determine what the actual cause of your bike not starting. First. Does the bike have ignition? Does it have fuel? Compression? Unfortunately I cannot say why your bike is not starting from the little info you've given. Some research on forums for your particular bike or a neighborhood mechanic should be able to help sort the problem.
7070x 12 years ago
That's how us here rev, of course with aftermarket exhaust, when we meet with other CB 100 riders. Yours is a sweet retro classic style! Is that restored now?
Mine below is going on some serious engine swap. Actually, I am replacing the cylinder head with Honda GL Pro Series, trying to get 156cc. Picked up the bike for Rp 2 million or US$220. still lots to invest on the project.
josh 11 years ago
AaronMiller27 11 years ago
josh 11 years ago
Beemer007 12 years ago
2 stroke 12 years ago
josh 12 years ago
2 stroke 12 years ago
da winksta 12 years ago
Thanks for the instructable, ive changed the oil a bunch of times but didnt know there was a filter in there!
So why did you remove the clutch cover?
josh 12 years ago
cokecola 12 years ago
My Dad had a Honda CL100 that looked alot like the CB. He bought it in 1970 for $410 and sold in 3 years ago for 750.