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Hey all, I work for a fleet shop and we have a lifeguard ATV its a Kawasaki brute force 650. Its back firing through one carb more than the other one and back firing through the exhaust. Starts up and idles good, once you start giving it throttle it acts as if its starving for fuel. This thing gets tons of beach sand thrown at it 24/7. Things that have been replaced are:
both new carbs, new fuel pump, new plugs.
Things that have been checked: Compression is good - in range (high end of the range) also have ohm'd the coils and the resistance is within spec in the service manual. Fuel pick up is clean, no debris or restriction there. Does any body have any other ideas what it could be? Thanks for any input
Hi everyone, I received a 98 Yamaha Timberwolf from my brother for free, and I'm working on getting it going.
I am having the following problem:
The engine is backfiring through the carb.
I have done the following to try and get the four wheeler running:
Rebuilt the carb and set the air screw to 1-1/4 turn out and the circlip at middle position 3
Replaced the coil, because the cable was loose at the coil end
Repaired the main ground, coming from the battery
Replaced the ignition switch, because my brother couldn't find the key. New switch tested good
Tested the kill switch and it tested good
New coil tested goodfor both primary and secondary coils
Pickup coil resistance is at 195, which is correct
My source coil, is where I believe the issue is. The resistance is 310ohms, and it should be between 428-523ohms
When I opened the stator housing, there was significant oil, which I have read is normal. Does it sound like I'm on the right track replacing the source coil? Could this be causing my backfiring issue? It looks like the source coil is part of the stator assembly, is this correct? 4BD-85510-20-00 STATOR ASSY
How hard is it to change the outer seals on the rear differential mine are leaking fluid and I have no idea on how to change them out any help would be great thanks
Turn on key, put it in Neutral, lights on steering column light up. NO head lights and the electric start switch will not work. Let is sit for a few hours, started right up. Sat over night and same issue. Checked fuses and they were good. Battery is giving 12 volts. Opened up the ignition assembly and it isnt getting any power it comes up as a .01 on the volt meter. Pulled the spark plug to check for spark and NO spark. Will not pull start either. Unhooked the battery checked the spark while trying to pull start it and got a weak spark.
Pushed it into the garage and it sat for 2 days. Turned the key and pushed the start button and it cranked but the spark plug wire was off so plugged the spark plug back in and pushed the start button and nothing. If you jump the solenoid it will crank over but not start. Soo confused , anyone have any ideas?
Hi all...new member here...looks like an awesome site! I searched around, but couldn't find a service manual for an 02 Prairie 650. If someone has one we could download, we"d really appreciate it! We"re needing to replace the front cylinder and head, etc. for this new machine we just bought.
All responses appreciated. Thanks much!
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