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Old 08-25-2016, 08:56 PM   #1
linkkokiri83   linkkokiri83 is offline
 
Join Date: Jul 2016
Posts: 18
139qmb fine tuning help

Trying to get my scoot at its peak. Im 270 pounds, 6 foot. Its been upgraded to 100cc, with a run of upgrades as in signature, belive 6g rollers, unknown kontra amd clutch springs. Hoping somone similar to my size amd scooter setup reads this, trying to figure out what rollers, utch springs, amd contra spring to snag. At least to start with.

As well, as a way to measure rpms while i ride. Ive read these engines peak at arkund 8500 rpms. Ive seen dash displays, but no clue what to buy. I really wanna get this thing tuned up.
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Smm jazzie gy6 , from 50 to 100cc
Orange black cdi cable
Purple racing cdi box
20mm carb jets unknown as of now
Open element air filter
Mirror stereo system
Roller weight nd clutch spring unkown
Rider 6 foot 270 pounds



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Old 08-26-2016, 07:42 AM   #2
rks   rks is offline
 
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Location: Western New York
Posts: 454
I have no experience with the 50cc scoots, so can't help with cvt tuning......but as far as a tachometer goes.....I put one on my scoot over 4 years ago....still works fine. It is like the one in this link, only now they have replacable batteries...mine doesn't. Easy installation, just wrap the lead around the spak plug wire 3 or 4 turns, attach tach with 2 sided tape, or zip ties, and off you go.

http://www.ebay.com/itm/Black-12VLCD...NXtSZJ&vxp=mtr
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Old 08-26-2016, 09:55 AM   #3
linkkokiri83   linkkokiri83 is offline
 
Join Date: Jul 2016
Posts: 18
If i want to measure rpms with it, just put scoot on stand and rev it up?
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Smm jazzie gy6 , from 50 to 100cc
Orange black cdi cable
Purple racing cdi box
20mm carb jets unknown as of now
Open element air filter
Mirror stereo system
Roller weight nd clutch spring unkown
Rider 6 foot 270 pounds



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Old 08-26-2016, 05:27 PM   #4
rks   rks is offline
 
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Location: Western New York
Posts: 454
You attach it to your scooter....it becomes another instrument, such as the speedometer, fuel level gauge etc. On the stand, or going down the road......if engine is running, the rpm's are displayed. Shut the engine off....and engine run time is displayed in hours.
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