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Old 05-14-2010, 07:17 PM   #1 (permalink)
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1989 TRX 350d. It has a newly rebuilt head and cam chain on it. Compression is good. Valves adjusted to service manual specs, Starts very good but runs rough, smokes like the choke is on (It's not) and will not idle no matter what. Idle adjust does nothing. The carb has been gone through and cleaned and set to factory specs. If I try to move it it's like its flooding out. Any suggestions?
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Old 05-15-2010, 07:52 PM   #2 (permalink)
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needle and seat? or any air restrictions in the air box?
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Old 05-16-2010, 12:12 AM   #3 (permalink)
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sounds like carb issues!!!
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Old 05-16-2010, 04:28 PM   #4 (permalink)
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Airbox isn't back on yet. I think I'll go through the carb once more. Maybe a blocked air passage???
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Old 05-17-2010, 07:09 PM   #5 (permalink)
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Make sure the choke isn't froze up and the cable just moves making it look like the choke is working.
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Old 05-18-2010, 01:13 PM   #6 (permalink)
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QUOTE (spike @ May 17 2010, 05:09 PM)
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Make sure the choke isn't froze up and the cable just moves making it look like the choke is working.[/b]
Second on the choke/cable issues-very common honda issue with those bikes.
Were the valve guides and seals serviced?
is it oil smoke or fuel smoke?(you'll be able to smell excess fuel if its a carb/choke issue)
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Old 05-21-2010, 11:56 AM   #7 (permalink)
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needle jet jet needle p/n 16012-ha7-671 sold as a matched set,have replaced these a few times on these machines.should fix your problem..
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Old 05-22-2010, 04:27 PM   #8 (permalink)
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choke is stuck on more than likely. if the choke plunger is steel/brass change it to the new plastic/composit type. they make a kit, i did one on my buds old 300 honda. was about $50 canadian. if not it could be the needle/seat as someone else stated. those bikes have the tank under the seat and the carbs are fed by a fuel pump, not gravity like most bikes. good luck.
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Old 05-28-2010, 06:41 PM   #9 (permalink)
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Ok, Carb rebuilt with all honda parts. New Float too. Bike is getting fuel. Valve clearance rechecked to .008 spec, lots of bright blue spark, plenty of compression, wind it over and I get nothing. Not a kick, not a sputter, nothing. Just like the ignition was turned off. I'm getting to the end of my rope with this one.
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Old 05-29-2010, 09:41 AM   #10 (permalink)
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QUOTE (PEIXLTMan @ May 28 2010, 04:41 PM)
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Ok, Carb rebuilt with all honda parts. New Float too. Bike is getting fuel. Valve clearance rechecked to .008 spec, lots of bright blue spark, plenty of compression, wind it over and I get nothing. Not a kick, not a sputter, nothing. Just like the ignition was turned off. I'm getting to the end of my rope with this one.[/b]
when key is turned on do you hear fuel pump humming??
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