Clinician
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Post by thevolget on Mar 25, 2018 16:29:38 GMT -6
9 pin connector is the accessory connector commonly used for an alarm.
As far as spark, check the brake switches, as you typically have to hold the lever to start. Possibly one or both are unhooked
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Clinician
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Post by thevolget on Aug 18, 2016 18:25:48 GMT -6
Audio of a quick run around the block. (and some poor video, phone was in pocket recording)
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Clinician
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Post by thevolget on Aug 18, 2016 18:03:07 GMT -6
Well I think I figured it out. I had the plastic spacer for the intake rotated and causing a poor seal and restriction.
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Clinician
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Post by thevolget on Aug 18, 2016 14:19:35 GMT -6
Best example is at about 5 min mark. That was at WOT the entire time.
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Clinician
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Post by thevolget on Aug 18, 2016 11:43:10 GMT -6
Well, cleaned it out and took for ride today to get fuel for my mower. Managed to record a 15min video of it running (and how it sounds when running). Noticed that when I put my hand on the intake, there was next to nothing as far as suction unless the motor was running at high rpms. I'll post the video as soon as it's uploaded.
Jct842, I was running a k&n style filter on it. But have replaced with a foam one and still happens
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Clinician
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Post by thevolget on Aug 17, 2016 16:17:24 GMT -6
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 #90, it does the same. Once a #90+ 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.
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