New Rider
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Posts: 8 
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Joined: Dec 14, 2016 12:42:20 GMT -5
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Post by lonestarcruzer on Jan 18, 2017 14:53:36 GMT -5
So, I have the wiring harness hooked back up and the bike is about 80% put back together. I'm trying to get her fired up, I was having issues keeping her idling with the stock carb and figured it needed fuel/air mix adjusted since I went to a pod filter (if I held my hand over the air intake it would start and idle but once I took my hand away it would die). I got a new carb, and it already is more willing to start up but it just won't. If I put a little starting fluid in her and crank her up, she'll stay running as long as I have the throttle open a bit. I'm assuming this means she's running rich. Before I go off messing with the adjustment screw I wanted y'alls opinion, and also advice on which way turning the screw leans out and enriches the mixture.
It's a 150cc gy6.
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Post by tvnacman on Jan 18, 2017 16:14:51 GMT -5
sounds fuel related.
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Post by tortoise on Jan 18, 2017 18:46:46 GMT -5
. . . with a vacuum operated pulse-pump.
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New Rider
Currently Offline
Posts: 8
Likes: 0
Joined: Dec 14, 2016 12:42:20 GMT -5
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Post by lonestarcruzer on Jan 27, 2017 14:39:37 GMT -5
Well, the Gy6 bike has been put aside for a moment until I finish painting the fairings. I have it idling with the new carb and high-flow pod filter. It is idling a bit high for what I'm used to working on motorcycle engines, and the wheel will spin up on the center stand. I don't have the seat mounted and haven't taken it for a ride, and haven't hooked up the gauges yet. What RPM is normal for Gy6 engines to idle at? 1000-1250 is what I shoot for on most bikes. I remember reading somewhere that 1700 is what to tune the carb/idle for, I think that's around where I have it tuned to, turning the throttle screw back any stalls the bike even with idle fuel adjustment.
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