Hello i recently purchased an 1998 honda cr 125r used from a friend, he said it runs but the carb needed cleaning upon cleaning the carb I found it still bogs down in the low end and wont rev out in the top end. Could the problem be in the reeds or could it just be a bad carb, and what is the exact function of the idle/choke switch does it meter fuel or just change the position of the throttle.What is an easy way to tune a carb when you did not count the turns while disassembling. What is the gap supposed to be gapped to.
2007-12-06 08:42:42 · 3 answers · asked by traheem01 1 in Cars & Transportation ➔ Motorcycles
the bogging sounds definitely sounds like a tuning issue. What i would do first is to check the plug. That can tell you a lot about how the bike is running (black/sooty=rich, really white=lean). You want the electrode to look slightly brown and the rest of the plug just a shade black.
On my YZ, the idle screw and the choke are separate. The choke allows more fuel to enter the engine for cold starting and the idle screw just adjusts where the throttle slide will stop when you let go of the throttle which determines the idle speed of the engine.
2007-12-06 18:12:08 · answer #1 · answered by ElTacoNegro 1 · 0⤊ 0⤋
Without knowing the bike's history, I'd rebuild the top end (cylinder, piston & rings).
2 strokes should be rebuilt every season for optimum performance.
2007-12-06 11:27:19 · answer #2 · answered by guardrailjim 7 · 0⤊ 0⤋
change carb and reeds but dont get stock get boysen
2007-12-06 16:14:43 · answer #3 · answered by big mike 4 · 0⤊ 0⤋