Post by thevolget on Aug 18, 2016 17:12:44 GMT -5
A couple weeks ago I managed to get caught in a downpour on my way to work. The rain came down hard enough to flood the roads in 5 minutes. Anyway I ended up getting stuck having to go down a road that had just started to flood. Was OK until some jackass in a suv flew past on the opposite side and sent a wave up over my scooter. Bam... Hydrolocked engine, bent connecting rod, cracked piston and scored sleeve.
Well after seeing the damage, I rebuilt the engine. New crankshaft, new 50mm sleeve, and gaskets to boot. Put everything back together and fired up no problem. Running is completely different story however.
It runs, but feels like there is no power once it gets past 25mph. If I keep the throttle wide open it will speed up some but pop loudly out the exhaust constantly as well (will not pass 30mph). Even after changing the jet several times starting at #80 through a #
, it does the same. Once a #+ jet is put in, it acts as if too much fuel is going in and almost dies out.
Mods done to the scooter:
100cc bbk
Performance exhaust
Free flow filter
6g rollers
I've set the valves to 0.04" intake and 0.06" exhaust. Triple checked the timing, checked the compression (~205psi), made sure that filter isn't clogged, regapped the spark plug. Nothing helps.
I've even got some video of it running (audio since phone was in pocket), where it shut off on me after 10 minutes of running horribly like this. I had to walk it almost 2 miles before it would cut back on (running the same way).
Well after seeing the damage, I rebuilt the engine. New crankshaft, new 50mm sleeve, and gaskets to boot. Put everything back together and fired up no problem. Running is completely different story however.
It runs, but feels like there is no power once it gets past 25mph. If I keep the throttle wide open it will speed up some but pop loudly out the exhaust constantly as well (will not pass 30mph). Even after changing the jet several times starting at #80 through a #
, it does the same. Once a #+ jet is put in, it acts as if too much fuel is going in and almost dies out. Mods done to the scooter:
100cc bbk
Performance exhaust
Free flow filter
6g rollers
I've set the valves to 0.04" intake and 0.06" exhaust. Triple checked the timing, checked the compression (~205psi), made sure that filter isn't clogged, regapped the spark plug. Nothing helps.
I've even got some video of it running (audio since phone was in pocket), where it shut off on me after 10 minutes of running horribly like this. I had to walk it almost 2 miles before it would cut back on (running the same way).
jet just to be on the safe side since it still felt like I was running lean with the #