Clinician
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Joined: Aug 12, 2014 1:11:39 GMT -6
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GY6 MODS
by: thecrid - Aug 13, 2014 21:14:13 GMT -6
Post by thecrid on Aug 13, 2014 21:14:13 GMT -6
John,
I will order the gears and update this post as I go thanks for the advice
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Clinician
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Posts: 3
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Joined: Aug 12, 2014 1:11:39 GMT -6
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GY6 MODS
by: thecrid - Aug 13, 2014 1:04:34 GMT -6
Post by thecrid on Aug 13, 2014 1:04:34 GMT -6
Wow you all have good really good points. I live in Hawaii and you don't have to register it if it is less than 50cc so as far as the state knows it is legal they treat it like a bicycle. Yes im pretty happy with the 15mph gain but it is just something to fool around with. It is fun just seeing what I can get out of little motor.
John I probably will go with larger gears the 17/49 set should give me about 8 mph if my math is correct then start playing with the variator and rollers.
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Clinician
Currently Offline
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Joined: Aug 12, 2014 1:11:39 GMT -6
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GY6 MODS
by: thecrid - Aug 12, 2014 1:36:47 GMT -6
Post by thecrid on Aug 12, 2014 1:36:47 GMT -6
I bought a new Solil moped with a 49cc gy6 qmb139 engine. I can only get 45MPH out of it I weigh 200 lbs. Here are my mods.
50mm BBK
50mm head with 23MM Intake And 20MM Exhaust Valves with 64mm Rocker arms
20mm carb with a 90 jet
A9 cam
racing cdi
performance exhaust
I have thought about gears but don't want to loose my low end power.
I have checked my plug and it is light brown almost tan so I think the jetting is correct.
Any thoughts?
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