The gear ratio is too high, I would recommend a gear ratio of about 1:12 ( wheel to engine rpm) if not even higher. Also chainsaw clutches are not designed for high load purposes such as pushing a motor bike. In your case I would recommend not using the bike for too long so the clutch does not get too warm
I hate ads too, especially perfume ads, this is an inspiring idea that I may try. Good job!
Hi TheNecromancer13,At the moment I am currently upgrading to a belt system and hopefully the top speed will be higher, before it did around mid twenties. Unfortunately whilst doing another top speed run, I ruined the clutch bearing somehow and I don’t want to have to weld another sprocket to a new clutch drum.I’m not sure if I made it clear in the instructable, but I chose to have the engine drive the crankset because I wanted to be able to shift the gears.That bike looks really nice, good job! Shame diy stuff isn’t street legalHave a good day
Hi aebeI actually live in the UK and the laws here are much stricter, so trying to get this thing registered would be pointless. Thanks for the comment
Hi Gelfing6Hope your back is ok (sounds nasty), and I totally agree. This thing is a safety inspectors ultimate nightmare. I am planning to cover the clutch and chain with some spare aluminium I have laying around, but I only want to do this once I have converted this to a belt system.As for the jack shaft kit, there wouldn't be much point for me as I'm going to use a belt system instead soon, (because the acceleration will be better)Thanks have a good day
DIY Chainsaw-bikeView Instructable »