bicycle motor vibration

I have an idea that might help the vibration. I have some n.o.s. snowmobile engine mounts. They have a stud sticking out of each end with a "pancake" rubber insulator in between them. My plans are to use 4 of them and weld some cross braces to my bike frame and make coresponding braces to fit the engine mounts. In my mind, it "should" work. Anyone try this approach?

There is the thought that if you rubber mount the engine you can get rid of the vibration. On the other hand loose motor mounts can cause vibration. On the motorcycles we used to work on if a mount came loose it would knock the enamel off your teeth. I have four different engine company outfits. The dax is the best one for being vibration free, I rode it today and am still amazed at how well it runs. It is the only one that does not vibrate. I am tempted to install one of the other engines in this bike and see if the worst one will shake the Green Hornet. The newest one from Revolution I have to keep the revs down or it will shake the bolts off. One thing I don't know what would happen if you hide the vibration with rubber, I think the engine would shake its self to pieces and you would not know. Have fun Dave

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Chuck - The monkey has the spark plug again!

I've always wanted to use Mini hogs idea but after reading Egors thoughts, I think he may have a point. I can almost picture the little engine vibrating right off it's mounts.
It has to be tried though and may end up being the best mod availible to us.
Hope to hear more on this Mini hog!

Try switching to a smaller rear sprocket the engin won,t run as hard therefor you will have much less vibration.

HookWorm - Yes on a slow revving engine that is a good answer. I do have a 39 tooth sprocket on the Green Hornet. I like the smaller sprocket keeping the noise down also. Have fun, Dave

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Chuck - The monkey has the spark plug again!

Found some rubber mounts at
Broward County Cycles - Custom Motorized Bicycles

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Wow - never heard of these guys, but I can drive there in about 45 minutes...cool. I'll have to take a ride down one weekend over the summer and check them out.

I like the air-filters!

I just picked up an "Upgrade Kit" on eBay from LiveFastMotors...$15 will get you a 40t sprocket, new chain, and a few other items...I'm currently using a 44t, and the entire reason I went with a smaller sprocket was to get rid of the vibrations at 25-26mph. Not planning on going much faster, but I should get a bit better gas mileage and of course lower the vibrations at that speed.

I have not gone any faster than 26.2mph (says my speedometer), so I don't know if it smooths back out at higher revs, but honestly, I don't want to find out. It sounds like I'm at the redline at 25mph... who knows, my throttle is only about 2/3 open...I know it will go faster, but do I really want my motor turning any faster?

You guys want to experiment with lowering your rpms and vibs?!
The front sprockets on most bikes will fit( teeth count from 36 to ?) the 415 chain the problem is getting that sprocket to fit the back wheel where the 415 sprocket goes. So this is where you have to get inventive. So there is some food for though now lets see what you all come up with!
Did that last line give away I live in Texas?!
Ride it like you stole it

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norms-iron-works.tripod.com

15 dollars for and upgrade kit with all that?!? How much is shipping 99.99?

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If it ain't broke, and you mess with it long enough, it will be.