View Single Post
Old 04-09-2012, 06:32 PM
Al.Fisherman's Avatar
Al.Fisherman Al.Fisherman is offline
Motorized Bicycle Elite Member
Join Date: Sep 2009
Location: Calera, Alabama
Posts: 1,966
Default Re: Something odd with my engine. ?

Originally Posted by Texhun View Post
It's a 66cc K-80 from BGF. It runs like my first 2 engines did, that feeling of unnerving vibration as your revs go up with the speed and when it does that thing there's almost no vibration to be heard of. I know it's sounds odd and it's a little hard for me to explain. Like I said earlier it's not 4stroking, it just all the sudden runs faster and gets super smooth like the crank all the sudden got balanced and the vibes are almost completely gone. If I can just figure out what's causing it to keep from running smooth and faster like that. I'm almost thinking it's a combination of running rich and having bad spark. I'm running a RT carb with a #70 and a champion plug. On a cold start it 4strokes for about 3-4 seconds when I let the choke off and that's it. Then I can run all day and just randomly while I'm riding it goes super smooth for about 8 seconds then goes back to normal.
Were all engines on the same frame? Are you using any insulation between the mount and frame?
Looking for HT's parts?
HT pre instillation tips.
Engine running problems?
HT breakdown Photos

Ron ><)))))*> Calera, Alabama
Reply With Quote