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Showing results for tags 'fouled'.
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I feel like ripping my hair out! I bought a 2005 cr125 years ago, brand new. From day one it was a fouled. Eventually I had it tuned kind of good. A couple of years ago someone stole my bike. Obviously I recovered it. My crank bearings were shot. So I split the cases and changed them and both seals. After assembling the bike it smoked and bogged like crazy. I thought I may have fudged up the right crank seal when I installed it...nope changed it and still smoked and bogged and fouled. It sat up for about a year and I just broke it out again. It doesn't smoke as bad. If I idle for about 10 seconds it'll blubber and shoot out smoke before fouling a plug. The strange part it that it rides pretty good on the pipe, but out of the blue with blubber and eventually die. Now After cleaning the spark plug and kicking it, it'll turn over for a sec and die. The spark looks weak so I check it with a new plug and it looks good (so I'm assuming it's not the ignition system) anyone else have this problem? I'm beginning to think this bike is a money pit...but on the same hand I feel like it's something small causing all of this. Oh and also it's dripping that black crap from the tailpipe and plugs are always wet. I went down a size on the pilot...didnt help.
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?