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Travis

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Posts posted by Travis

  1. you'll have to get the axle nut off first. 1 1/16" If i remember right.

    the trick to getting the stuck drums off on these 550's is pb blaster,a hammer, and patience. also wouldn't hurt to open the bleeder on the back of the wheel cylinder to relieve any pressure.. spray the PBlaster between the drum and backing plate, let it sit and soak, and moderately tap around the drum, mainly focusing on the area around the cylinder... patience is KEY.

    • Like 1
  2. On 11/8/2023 at 9:03 AM, Joey S. said:

    I have a 1999 Mule 550 which only had 25 psi on compression test. Leak down test indicated cylinder or rings issue, as I could clearly hear the air leaking when I removed the dip stick. Nothing out of the exhaust, & maybe a little out of the intake. I've removed the head, & there's a lot of carbon build up on the valves. I've ordered new valves, & am engine rebuilt kit, complete with piston & rings. When you pulled your piston, did you remove the engine, or were you able to remove the piston while the engine was in the frame? Thanks! I made the mistake of buying this sight unseen while I was deployed, & didn't think about asking for a compression test prior to paying.

    download my manual i uploaded here, will tell you everything you need to know and then some

     

    • Thanks 1
  3. if you have to pull the choke, your engine is not getting enough fuel.

    I've noticed carb problems on these 550s tend to happen quickly.

    the first thing i would do is remove the fuel line from the carburetor and make sure the pump pumps when you crank it over, it'll shoot out in bursts.

    if that looks good, i would remove the carburetor, two 10mm nuts, 10mm bowl screw, and spray out the main jet and all the air holes in the venturi with carburetor cleaner

    I had recurring problems with my  carb since the fuel tank is a little rusty, getting rusty looking sediment build up in the bowl.  i installed two filters, one before the pump and one after the pump and i have had no more issues.

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