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Showing results for tags 'hesitate'.
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When i try to ride at a consistent speed at a higher rpm the bike will jerk and hesitate until i shift up. For example if I'm doing 35 in third gear (14-45). Ill try and ride that constant speed and the bike will jerk around, kinda like its not getting gas. I've done Dave's Mods and have a 52/160 jetting at around 850 feet elevation. Any ideas about how to fix this?
Recently picked up a 1987 xr200r in pretty good condition, all stock. The carb was all gummed up and running real rich, and the previous owner removed the baffle and end cap from the exhaust, but left the air box top chute in place. I cleaned up the carb and verified all stock jetting, needle position, air screw, etc. Where we live the quieter the better for off-roading so I ordered a new baffle and end cap, but did ride the bike for a week before the parts arrived. With the muffler parts out I had a brown plug and plenty of power throughout the entire throttle range. Got the muffler parts, installed them and now the bike falls flat while climbing hills and gradually rolling on the throttle, I get a burble at low speed sometimes and I have a black sooty plug. I'm kind of at a loss on this one. I realize that the parts restricted the exhaust....but it's basically back to stock and I've had these bikes stock before and they ran fine. Seeing as I have all stock jets and am getting a sooty plug, I'm wondering if electrics are weak? I also tried adjusting the air screw in/out and moving the needle clip to position 2, either of the two made my problem worse. Any ideas?