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Old 02-10-2011, 09:08 PM
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2door 2door is offline
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Join Date: Sep 2008
Location: Littleton, Colorado
Posts: 16,222
Default Re: Glad I found you!

That looks familiar. And here is an engine mount that looks a lot like yours but without the rubber.

These are both my designs. Neither have ever given me any problems.
As for the comparisons' with a four stroke motorcycle engine from the other member...
These are not four strokes but two stroke and single cylinder...
A 2 stroke single cylinder engine inherently produces a vibration due to its lack of an opposing pulse producing cylinder/piston/mass and even when the rotating components are 'balanced' there will be a harmonic pulse, (vibration) felt and experienced by the assembly it is bolted to. There have been efforts to 'balance' the crankshaft/piston in these engines which have proved to have marginal success.
Nevertheless, builders have experimented with variouis ways to eliminate or reduce the vibration felt in the frame/handlebars of bikes equipped with the Chinese 2 stroke engines. Yes, there are some quality control issues with our engines but they are not the culprit. The problem is the inate fact of physics that can not be changed.
If you want to soft mount your engine, by all means...go for it. Just have the courtesy to come back here and let us know when your fasteners/engine casting fails.
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File Type: jpg Front Mount, 3, Copy.jpg (147.5 KB, 58 views)
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Last edited by 2door; 02-10-2011 at 09:11 PM.
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