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Old 02-12-2012, 11:43 AM
recon chris's Avatar
recon chris recon chris is offline
Motorized Bicycle Senior Member
Join Date: Apr 2011
Location: pacific grove
Posts: 87
Default Re: Getting all 3 Horse Power out of your GT-5 Sky? (tear down)

So i haven't posted anything so far because I am waiting for my spacer to be made. Then I can then measure the exhaust timing and make an appropriate expansion chamber for it. If anyone is interested in making their own ex chamber i would recommend downloading this software for 18$

So far the ridding been great except for one thing.

The drive chain on the upper side were it returns to the engine vibrates from side to side during certain rpm ranges. Ill have to make a chain tensioner for that.

Also i thought I should tell you guys. After the first week of riding i was accelerating up a road and suddenly the engine RPMS skyrocketed and I lost all power to the rear tire. What had happened was that the woodruff key on the drive sprocket sheared off due to to much torque.
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