liambelgium
Scoot Junior
Chinese (keeway) 50cc 1E40QMB 2stroke
Posts: 9
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Post by liambelgium on Oct 8, 2019 13:36:38 GMT -5
I have a chinese bike with 1E40QMB-4 engine and i would like to maie it pull harder it has a nice top speed of 50mph but i takes a long time to get there everything is stock exept for the variator and i removed restrictors in the exhaust any tips ? And what gear oil should i use ?
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Post by christopher on Oct 8, 2019 19:48:09 GMT -5
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liambelgium
Scoot Junior
Chinese (keeway) 50cc 1E40QMB 2stroke
Posts: 9
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Post by liambelgium on Oct 9, 2019 8:12:24 GMT -5
I mean th oil you put in your gears behind your clutch  |
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liambelgium
Scoot Junior
Chinese (keeway) 50cc 1E40QMB 2stroke
Posts: 9
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Post by liambelgium on Oct 9, 2019 8:13:02 GMT -5
And when you changed the exhaust did you need to tune a lot of other parts ?
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Post by christopher on Oct 9, 2019 10:58:13 GMT -5
I had to install a larger main jet and lighter sliders in the variator. To help put things in perspective going from 0-35 MPH took 13.99 seconds. After the new exhaust was put on and tuned it took 10. I was also able to get a top speed of 42, 35 was pushing pushing the scooters top speed previously.
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Post by christopher on Oct 9, 2019 11:21:52 GMT -5
I used 80-90w synthetic gear oil in mine.
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