Bad Vibration Not Good Vibrations.Lol

[oliverw123]

My 48cc engine clocked up around 25000km and was perfectly smooth throughout the rev range. I only rode it one way and that was throttle wide open, I had it screaming most of the time and could easily get up to 65km/hr. All was good until I drove one of our trucks over it, don't ask. The bicycle was mangled but the engine was fine. I did a complete strip down and I was amazed to see how the internals were still in top notch condition, after all those years and kilometers. My mix was 50:1 using high quality 2-stroke oil.

I recently installed a 66cc engine and man that thing is un-rideable. Being used to the 48cc engine, I normally wind them up but not this one, as everybody has mentioned, they vibrate like hell. It is a tractor though and it pulls my tool trolley around the yard very easily and as long as I use itjust for that, it seems ok.

So these engines are highly reliable if you keep your hand on it. I never had a break down with my 48cc setup and would complete 100km round trips just for fun. Unfortunately I can't find parts for the 48cc kit anymore, locally that is.

 

[HumanPerson]

thatsdax.com Speak to Duane.

 

[inspectorcritic]

View attachment 73830 Any advice on how to minimize vibration would be helpful..

Tighten your motor mounts, first sign of a dangerous problem is a lose motor mount you might be able to use a inner tube on the mounts to absorb the vibration maybe bikeberry has a rubber insert another thing it can be your motoro bushing and so on that are cheape above 21MPH causes vibration a WildCat Motor that California Bike brags that his motors are smother due to using a pin rather than stock reduces vibrations above 21MPH you might want to flip hundred dollar bill on one of his motors if its a big problem.

 

[Frankenstein]

Tighten your motor mounts, first sign of a dangerous problem is a lose motor mount you might be able to use a inner tube on the mounts to absorb the vibration maybe bikeberry has a rubber insert another thing it can be your motoro bushing and so on that are cheape above 21MPH causes vibration a WildCat Motor that California Bike brags that his motors are smother due to using a pin rather than stock reduces vibrations above 21MPH you might want to flip hundred dollar bill on one of his motors if its a big problem.

Rubber mounts aren't a good idea, take up space, money, and make vibration problems worse (more flex at the mounts)

If you have an engine that vibrates too much then your mounts are too loose or your engine is an unbalanced piece of crap.