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#111 Re: New QingQi 250 Motorcycles! (QM250-2D, QM260-GY-B)02-06-2012, 01:25 PM
Oh yeah, thanks for noticing China V---I didn't notice the brand --- I had a Kenda K277 on my 200gy, and it gave me great service, but is nothing short of scary in the rain... Good off road traction and wore like iron, but if you ride in rain on pavement--no bueno....It was a fairly hard rubber compund, which made traction suffer in the wet. good tread pattern, but too hard----------again, hope this helps
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#112 Re: New QingQi 250 Motorcycles! (QM250-2D, QM260-GY-B)02-07-2012, 12:52 PM
@ MJH: TOTALY AGREE
thanks everyone
my old tire show me some scary acts in mud /snow/ and wet asphalt so im not going to have them another time
china v i think you are right ... as i searched over the web all customers are not fully satisfied with that K270 kenda
i want to use this bike just for offroad so i think the right one is the right one :)
cheers
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#113 Re: New QingQi 250 Motorcycles! (QM250-2D, QM260-GY-B)
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#114 Re: New QingQi 250 Motorcycles! (QM250-2D, QM260-GY-B)03-01-2012, 01:44 AM
Is that going on the Jinan 200cc? What size is it?
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#115 Re: New QingQi 250 Motorcycles! (QM250-2D, QM260-GY-B)03-01-2012, 09:39 AM
yes if jinan is the other name qingqi !!! it going to be fit on the QINGQI QM 200
mikuni TM 33.The stock carb of suzuki dr 200 is a mikuni 31 CV type .
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#116 Re: New QingQi 250 Motorcycles! (QM250-2D, QM260-GY-B)
- Join Date
- Dec 2009
- Location
- mostly Shanghai, sometimes northern California
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- 3,222
03-01-2012, 10:14 AMDear Nima,
What are you expecting this modification to accomplish? I'm not teasing. I don't understand carbs very well, so I really have no idea!
thanksjkp
Shanghai
2010 JH600 "Merkin Muffley" (in Shanghai)
2000 KLR650 "Feezer Ablanalp" (in California)
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#117 Re: New QingQi 250 Motorcycles! (QM250-2D, QM260-GY-B)03-01-2012, 11:00 AM
CV or constant velocity carbs are not so sensitive and the throttle response depends on the engine rpm not the position of piston slider
so engine has to make the first move for the diaphragm to get sucked up to the top and the slider following it , then RPM goes up
there is some kind of delay in this procedure and im expecting the new carb with bigger dimensions and mechanical acc pump and also piston slider
to act more aggressive and give fast throttle responses .the slider (flat piston in carb ) drive's directly with the throttle cables ... no vacuum needed .
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#118 Re: New QingQi 250 Motorcycles! (QM250-2D, QM260-GY-B)
- Join Date
- Dec 2009
- Location
- mostly Shanghai, sometimes northern California
- Posts
- 3,222
03-01-2012, 11:36 AMDear Nima,
Many thanks for that very useful explanation. Better throttle response is a fine motivation!
good luck with it, and be sure to take pictures of the process...
cheers
jkp
Shanghai
2010 JH600 "Merkin Muffley" (in Shanghai)
2000 KLR650 "Feezer Ablanalp" (in California)
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#119 Re: New QingQi 250 Motorcycles! (QM250-2D, QM260-GY-B)
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#120 Re: New QingQi 250 Motorcycles! (QM250-2D, QM260-GY-B)03-01-2012, 06:52 PM
OH MY GODDDD
that was easy as 1.2.3 and may be 4.5.6 and done !
it starts the engine with first attempt an idle like a a a a don know anything similar !!:)))
before :
after:
that was not a hell of a job to picture ...some bolts off and some on but the result was so impressive ....throttle response was all i expected and it was there ...more power and pulling in low rpm , no strange acts in high rpm and keep pulling ... starts the engine so fine ....chock was in a good position and handy .... i did not mess with it ,carb is in factory mode ..... worthy
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