I'm considering a purchase. The bike is an OCC stingray. BGF 66CC engine, 44t sprocket.
Mods:
-Air filter "box" was drilled for more air flow (Lean?)
-Intake manifold ported
-Exhaust manifold ported, pipe to rear wheel, no muffler (lean?)
As it sits right now, partial throttle isn't smooth, it backfires alot, WOT is fine for a short period, then it just falls on it's face, sputters, then falls on it's face again.
I'm guessing all this is due to it being lean? I did a quick WOT pull and pulled the plug and it was wet, however that's probably from the oil I'm guessing, can you read sparkplugs on a 2 stroke?
I had a DIY muffler and it seemed to make it run better, my first question is, where can I buy a cheap (not $30+) muffler, quieter the better, and enough backpressure to fix this tuning problem would be nice...?
Second, if this can't be fixed, would taking out the primary jet and drilling it be enough? Anything I should worry about (like it constantly dumping fuel)?
Also, top speed sucks, but I'm 220lbs, 33T sprocket on a 20" wheel? or just go 27?
(I've search extensively, but it seems every problem is a little different)
Mods:
-Air filter "box" was drilled for more air flow (Lean?)
-Intake manifold ported
-Exhaust manifold ported, pipe to rear wheel, no muffler (lean?)
As it sits right now, partial throttle isn't smooth, it backfires alot, WOT is fine for a short period, then it just falls on it's face, sputters, then falls on it's face again.
I'm guessing all this is due to it being lean? I did a quick WOT pull and pulled the plug and it was wet, however that's probably from the oil I'm guessing, can you read sparkplugs on a 2 stroke?
I had a DIY muffler and it seemed to make it run better, my first question is, where can I buy a cheap (not $30+) muffler, quieter the better, and enough backpressure to fix this tuning problem would be nice...?
Second, if this can't be fixed, would taking out the primary jet and drilling it be enough? Anything I should worry about (like it constantly dumping fuel)?
Also, top speed sucks, but I'm 220lbs, 33T sprocket on a 20" wheel? or just go 27?
(I've search extensively, but it seems every problem is a little different)