A warning to those looking to mod their motorized bicycles:

Most, if not all, of the hacks and mods featured on this site were made by individual hobbyists. If you are new to working with 2-stroke bicycle engines, please by aware that there's a possibility that a mod featured on this site could seriously damage your engine. Please don't try any mod from this or any other site unless you fully understand what you are doing. The owner of this blog will not be held responsible for both material and bodily damage caused by performing a modification featured on this blog. Also remember that opening up your engine may void your warranty!

Thursday, October 13, 2011

Piston skirt trimming

Sometimes, with the way these little engines are put together, the piston doesn't completely clear the intake port.  This means reduced flow.  How can this be solved?  By simply trimming the piston skirt to clear the intake!  If you're looking for a little extra power increase, this might be a good answer(if you're careful not to trim off too much that is).  HeadSmess on motoredbikes.com shows how this is done, along with a few other changes like widening the ports.
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