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Showing results for tags '330'.
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View File Polaris 2003-2006 Magnum 330 Service Manual Polaris 2003-2006 Magnum 330 Service Manual.pdf Submitter Robert Stutesman Submitted 06/23/2018 Category Polaris ATV
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View File 2009 Polaris TrailBoss Trailblazer 330 Service Manual 2009 Polaris TrailBoss Trailblazer 330 Service Manual Submitter Xyla Cat Submitted 08/25/2018 Category Polaris ATV
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Hello, I have a magnum 330 4x4 all stock just like i got it from the dealership. I have never had a problem untill now. it starts easy idles great. then when you run it for a few minutes it looses all power. it will idle great but will not move when you are on the gas, it will loop, try to rev up then fall on it face. it will do this untill you let off the gas then it will idle great. the past week we opened up the carb several time several different guys and cleaned it out. well after the first time it was "look at how clean it is", was the comments. cleaned out the fuel pump, new fuel lines and filter.. the reason i started this was for no power and no top end and stalling, we even adjusted the valves to factory spec. on the jets they are factory set no adjustment other than idle, and it idles perfect. everything i have learned over the years tells me it is a lack of fuel, i have good flow out of the tank on both lines, have good flow to the pump. I dont know how this pump works and no one i know does either. seems to run off the crankcase pressure.... from the piston going up and down. not sure,.... anybody have any time with this polaris 330 engine, the 500 may have the same set up maybe others. 2004 polaris magnum 330 4x4 all stock
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Carb issues help? I just rebuilt the carb on my '04 Magnum 330. It's a Mikuni 34mm CV carb. I got the rebuild kit from my local Polaris dealer. I also got 8' of 1/4" fuel line and a new in-line filter. I drained/cleaned the fuel tank and the fuel is now for the lawn mower. All of the fuel lines were replaced from the tank to the petcock, to the fuel pump, and to the carb. I even replaced the vacuum line from the carb to the fuel pump. New in-line filters installed. Fresh fuel in the tank. The carb kit had replacement parts for everything except the pilot screw/needle. I checked the float settings when I rebuilt it. I clipped the needle at 3 of 5, just like when I tore it down (factory setting). I cleaned the pilot screw, and reinstalled to two turns out from bottom. I was able to get it started w/o any problems, and it idles perfect (got lucky). But I haven't adjusted the pilot screw. Now my problem. I start up, closed the choke, and idles fine. BUT, if I try to give it gas it starts to stumble. I tried to give it wide open throttle, and it died. I can restart it and it runs fine at idle. I haven't tried driving it yet since I still have the front end tore apart. Any thoughts? I can get to the needle easy enough, but it's clipped at the same setting as I tore it apart at, and where it's been running fine since I bought it. Thanks in advance, Wayne St Louis, MO