Engine mounts
- Thread starter sparky300
- Start date
General wisdom among the guys who've built a lot of these bikes is that it's much better to mount the engine solid to the frame without any isolators.
When you use rubber mounts the engine actually vibrates more (but the rider doesn't feel it) & the increased vibrations add stress to the mounting bolts that can cause them to break.
When you use rubber mounts the engine actually vibrates more (but the rider doesn't feel it) & the increased vibrations add stress to the mounting bolts that can cause them to break.
Don't do it! Use the search feature and see what others have discovered.
Start here > http://motorbicycling.com/f6/rubber-not-27364.html
Tom
Start here > http://motorbicycling.com/f6/rubber-not-27364.html
Tom
I guess I should've been more specific about that...
Not under the u-bolts to the frame, but between the u-bolt top bracket and the engine bracket. Still no?
Not under the u-bolts to the frame, but between the u-bolt top bracket and the engine bracket. Still no?
Read the reply from Venice Motorbikes again.
Vibrations are going to happen with a single cylinder two stroke engine. It's just a fact of life, like death and taxes. You can not eliminate them. Trying to isolate them to the engine and not the bike frame will result in premature fastener failure at the engine mounts. Don't be fooled by those who will try to compare our bikes with Harleys and Hondas and cars. It's not the same thing. Using any resilient material between the engine and the frame will not stop the vibrations which are inherent but will concentrate them into the engine and mounts.
Make sure you have full contact between the engine mounts and the bike frame, no gaps, and live with the buzzing in your hands, feet and butt. It's just the nature of the beast.
Tom
Vibrations are going to happen with a single cylinder two stroke engine. It's just a fact of life, like death and taxes. You can not eliminate them. Trying to isolate them to the engine and not the bike frame will result in premature fastener failure at the engine mounts. Don't be fooled by those who will try to compare our bikes with Harleys and Hondas and cars. It's not the same thing. Using any resilient material between the engine and the frame will not stop the vibrations which are inherent but will concentrate them into the engine and mounts.
Make sure you have full contact between the engine mounts and the bike frame, no gaps, and live with the buzzing in your hands, feet and butt. It's just the nature of the beast.
Tom
