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Post by pmatulew on Aug 15, 2013 11:57:31 GMT -5
So, I'm trying to dial in the mixture on a relatively stock ZNEN 150. (The only mods are to remove most of the vacuum connections.)
I put a new NGK plug in a took it for a ride. How far do I need to travel before getting some sort of useable result? Miles? Tens of Miles? Does it change minute by minute or does it take a while?
I rode it to work and back (~9 miles each way) and it's a little black around the edges but otherwise unchanged. (Yes I know I'm supposed to chop it at full throttle and pull it hot.)
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Post by scootnwinn on Aug 15, 2013 12:08:47 GMT -5
Is it giving you issues?? Does it readily respond to throttle? Does it have hesitation? Popping on deceleration?
If your answers are no, yes, no, and no. Don't even bother. Have a look at it at your next oil change and just ride the thing.
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Post by oldchopperguy on Aug 15, 2013 12:39:40 GMT -5
DX
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Post by pmatulew on Aug 15, 2013 18:21:55 GMT -5
I'm new to CVT scooters and GY6 motors in particular, and I'm not sure what it's doing yet. It's a new build. The previous owner smoked it in the first 1000 miles by opening it all up without re-jetting. After rebuilding I put a 110 jet in and it seems to be doing okay. (It didn't like a 115 at all.) Has about 300 miles on it now. Idles fine. Reasonably responsive. At high rpm it has sagged on me a few times. I suspect either vacuum leak or fuel pump wimping out. Since the last vacuum disconnect/re-arrange it doesn't sag but it doesn't have that last 10% of top end either. Maybe too rich now? Maybe lighter weights to bring the rpm's up?  |
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Post by scootnwinn on Aug 15, 2013 18:30:06 GMT -5
I'd mess with weights first. If you aren't getting the yo may try a 1 step leaner but you are better off slightly rich...
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Sophomore Rider
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Post by david3336 on Aug 15, 2013 19:36:51 GMT -5
you do plug checks at what ever speed you think you have a problem. idle and plug check. run wot for 1/2 mile hit kill switch while holding wot then do plug check if golden brown on both you good to go unless you have a spot in there somewhere that dont run right
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