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So after a ride last night were I swamped the rincon in about 5 feet of water... I pulled the carb off to clean out any fish etc that might be inside and thought, what the hell, lets kick it up a notch, and installed the DJ #148 main jet, I set the A/F at 2 turns, and fired the machine up....
Now it realy seems to haul, i didnt get a chance to go for a good test ride, but here is the real point of this thread...
the machine sits idleing, its sounds like a good strong, maybe even slightly high idle... every now and then, either with my help by feathering the throttle, or all by itself, it sounds as tho the idle drops a few rpm, and this "hammering" sound eminates from the exhaust header, almost like its fireing with the exhaust valve open, or ??
anyone got any idea what this sound is ? and what to do about it ?
here is my current setup
Uni-Filter
Stock exhaust
DJ #148
2 turns on the A/F
removed plastic baffle
Now it realy seems to haul, i didnt get a chance to go for a good test ride, but here is the real point of this thread...
the machine sits idleing, its sounds like a good strong, maybe even slightly high idle... every now and then, either with my help by feathering the throttle, or all by itself, it sounds as tho the idle drops a few rpm, and this "hammering" sound eminates from the exhaust header, almost like its fireing with the exhaust valve open, or ??
anyone got any idea what this sound is ? and what to do about it ?
here is my current setup
Uni-Filter
Stock exhaust
DJ #148
2 turns on the A/F
removed plastic baffle