Post by kawaiikirino on Sept 9, 2014 11:59:31 GMT -5
So I have this little Jonway Agility yyqt-60 that i bought about a year ago second hand, it's 2012 was 50cc.
Then i fried the rings on that after a little performance upping. So i installed a BBK in January of this year, and that killed my crank.
So a few weeks ago i put this 44mm stroker crank in from STG with a new BBK and it has been a nightmare to get running.
First the manifold gasket broke, i bought a 150 gasket, easy.
Then i drained the gas (it had sat for about a month), now it started but still backfired and popped.
My brother tells me his did that when it was getting too little gas.
So i upped to 105 main jet and now i can start and run, but it still pops subtly and i get little speed. Like it struggles to hit 35 downhill.
I have two more larger jets, but my issue is.. every time i took the carburetor off there was smoke pouring out of the manifold. it was just a clear smoke, not thick, so it's not leaking gasket or ring.
Is this normal or am I screwed again? This thing has been a nightmare since i bought it.
Parts list;
Then i fried the rings on that after a little performance upping. So i installed a BBK in January of this year, and that killed my crank.
So a few weeks ago i put this 44mm stroker crank in from STG with a new BBK and it has been a nightmare to get running.
First the manifold gasket broke, i bought a 150 gasket, easy.
Then i drained the gas (it had sat for about a month), now it started but still backfired and popped.
My brother tells me his did that when it was getting too little gas.
So i upped to 105 main jet and now i can start and run, but it still pops subtly and i get little speed. Like it struggles to hit 35 downhill.
I have two more larger jets, but my issue is.. every time i took the carburetor off there was smoke pouring out of the manifold. it was just a clear smoke, not thick, so it's not leaking gasket or ring.
Is this normal or am I screwed again? This thing has been a nightmare since i bought it.
Parts list;
- 44mm STG Stroker Crank
- 82cc Big Bore kit 50mm
- A9 Performance Cam with matching Rocker Arms
- Performance Variator with 6g rollers
- Standard Replacement belt (will be upgraded when wallet allows)
- Performance clutch and bell with 2k springs (i hear that's what most people run with the crank)
- 14/47 Racing Gears
- 60mm uni intake with 1.5-2.0in L and straight. (air is no problem)
..BAD TO THE BONE..
and it straight backfired, then went to 105 and it's quietly popping now. I can get that working, but what i'm worried about, is the smoke coming out of the manifold when i pull off the carb. it's not smoking out of the exhaust. 