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Posted

ok so i recently bought a 2003 arctic cat 400 4x4. i bought it cheap cause it didn't have spark, so i found the magnents fell off flywheel. i J.B. welded them back on and bike runs. i had one clogged jet. i took the fuel shut off valve out off tank to clean valve plus tank and found two small filters on valve were basically disintigrated. do i need to replace or could i put a inline filter in. the fuel was running out the overflow before and i didn't know if it was getting to much fuel since the filters were torn and opened up.

  • 2 weeks later...
Posted

First off, replace that flywheel, when that JB weld gives way at 5000+ rpm, you may as well be launching bullets out of your side cover. Just replace the screen filter with the OEM part, no sense in messing with it, the stock part is probably just as cheap. Lastly, the fuel is leaking from the overflow because there is something that is keeping the float pin from sealing off the incoming fuel. This is probably due to some residue in the seat, a bad rubber point on the stopper, some gummed fuel buildup on the sides of the stopper, or the float is just not adjusted properly. Either way, I would open the carb back up and thoroghly clean every little nook and cranny and check that float adjustment.

Posted

took the carb off and took the float apart there was a bunch of crap in it. claened it out and still leaks. must be that rubber point that seals the fuel from entering. thanx dirt demon. i think i am going to leave the flywheel cause my wife is the only one who rides it and she goes slow. besides i bought the bike for 300 and a new flywheel is about 400-500.

Posted

Good luck, even if it happens at low RPM, a magnet flying loose will at least mess up the stator, possibly the engine case, then you are looking at hundreds more. The faster the motor is running, the more catostrophic the damage will be. Besides, you can probably find a decent used one on ebay for cheap. I think you are right about the float vavle, a new one should be less than $15 if you order from an online retailer.

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