Rtl 250 1988 Carb Probs
Posted 25 April 2012 - 10:45 PM
Wondering if anyone can help identify next steps. Recently bought an RTL which I still can't get to run properly - main symptom is on 75%+ throttle it starts to fluff as if starved of some fuel (or air I suppose) and smokes a bit. Also pops and bangs a bit on the overrun .
I have replaced floats, carbs o-ring kit, and latterly a new needle jet all with Honda OEM parts, but no luck. I haven't put the needle jet seat replacement in because I can't work out how to get at it - does it just press out from below?
Have replaced the plug with a new correct one.
Grateful of any other advice?
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Posted 26 April 2012 - 12:20 PM
75%+ should be main jet territory.
Posted 26 April 2012 - 04:21 PM
Posted 26 April 2012 - 11:03 PM
Mcman the smoke is black but it's not continuous, only when this fluffing starts. Do we think it could be valve related? There's no noise to indicate loose camchain.
Posted 27 April 2012 - 08:30 PM
Is the issue above 75% under load? I once had a bike that ran fine and picked up rpm well with no load but would miss under moderate to heavy load. It turned out to be a wire under the flywheel with worn insulation. Underload, there was less resistance to jump from wire to ground than there was to spark the plug.
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