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04-29-2013, 11:58 AM | #1 |
Join Date: Oct 2012
Location: Germany
Posts: 140
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Sorry to interrupt, but do you really have to downjet when you switch to carbon reeds?
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50cc 139QMB, 7g sliders, manual petcock w/ transparent lines, Naraku CDI, Naraku belt, high output racing coil, 18.4mm CVK clone w/ #85 mj and #38 idle, needle @ leanest, OEM pipe mod, Kenda tires, NGK Iridium, lots of LED mods, 2.61L/100km (90 MPG) |
04-29-2013, 12:15 PM | #2 |
Join Date: Sep 2011
Location: staunton va
Posts: 319
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Never heard of down jetting for carbon reeds the reeds should have no effect on your fuel air mixture, but you do need to upjet for a expansion pipe, I have done many bbk with the stock pipes and had no issues of seizing with the stock pipe if jetted right. The main cause of soft seizing is not enough fuel or oil and fuel being the issue 90% of the time cause the motor to run too hot. 2t compared to 4t are a lot more touchy where you need to be real close to the correct air fuel mixture in combustion for it to run right.
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2010 Cpi Oliver 70cc, naruku trans kit, downhill handle bars, tecnigas rsll pipe, s6 4g rollers, Vento R4 with 90cc 1e52qmf technigas next r 100cc pipe Naruku, 21mm race carb, s6 4.5 g rollers |
04-29-2013, 05:49 PM | #3 |
Join Date: Mar 2013
Posts: 3
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Thanks for the input. The exhaust is a Leo Vince Handmade 70. Everything else is stock. The scooter is a Benelli Andretti M50(QJ). What jets should be changed and to what size? It also run like shit at 1/4 throttle. Would 4 gram rollers be better. Not worried about top speed. Just want this bugger to run smoother. Thanks Gents!
BTW Teddy, the scooter came stock with a touring pipe(looks big enough to me to be an expansion pipe). I should probably also take a look at the plug. |
04-29-2013, 09:07 PM | #4 | |
Join Date: Sep 2011
Location: staunton va
Posts: 319
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Quote:
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2010 Cpi Oliver 70cc, naruku trans kit, downhill handle bars, tecnigas rsll pipe, s6 4g rollers, Vento R4 with 90cc 1e52qmf technigas next r 100cc pipe Naruku, 21mm race carb, s6 4.5 g rollers |
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