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Message: [QUOTE="Badbowtie73, post: 1358493, member: 108812"] I have been trying to help a friend of mine get his 89 rm 250 to run right for a few weeks now. We have been trying to eliminate the simple cheap stuff but almost everything i do wont make any change. I will give a quick run down of the problem and what has been done to it. He bought the bike not idling and bogging. It will start on the second kick most usually but if you dont keep the throttle at about 1/8 open it will die almost instantly as if there is no fuel at idle. You can rev it and it will bog but clean out after 10 solid seconds of pinning it which i hate to do. It will run good for a minute and then back to bogging but it will never idle for even a second. I checked the compression and its at 200psi. I have taken the carb completely apart and used a can of carb cleaner and put it back together with new orings and set the correct float hieght at 14mm and stock jetting (have tried one step smaller on both jets). Crank seal on the left side looks good and has no play in the flywheel. The reeds look ok with no chips, no cracks in the boot, air filter is clean, spark looks ok but is not perfectly consistant when kicked but jumps a 6mm arc when tested ,silencer repacked, expansion chamber clean inside with no dents, has an NGK resistor plug in it with new boot, premix at 40:1 klotz and 91 octane, air mixture at 1 1/2 turns out (have tried everything from 0 turns to 4 and no change, choke will make no difference in idle and will only make it bog worse when pinning it. I think i could keep going forever but if someone has any ideas on something else i may have missed please let me know. We would greatly appreciate it. I have searched on here and got many helpful ideas but nothing has solved it yet. Sorry for the huge post. Edit: I forgot to mention that otherwise the bike runs very strong when it cleans out but goes back within a minute of riding and we did check to make sure the linkage to the powervalve is moving freely. [/QUOTE]

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