new to massimo buck 400
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By Goat Quilter
We pout new belts cleaned engine and carburetor plugs you name it. Drove down road no problem came back uphill no power won’t go . What’s the issue?
could it be clutch?
frustrated in shop more than in use on farm
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By weasel
starts up you have keep rpms up for 5 minutes till it warms up then runs fine. But if it stalls wont start unless you unplug fuel pump and hold it to the floor till it starts then plug pump back in and run it till it warms up then it is fine all day.
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By jonny L
Went for a nice trail ride for about 20 miles, came back, shut it off, and attempted to go for another ride. The electronic gear shifter will not go into park to start it up. It reads neutral in the park position. Disconnected the battery and reconnected and it now read Park. But, when you put your foot on the brake to start it, it goes right back to neutral. Checked everything that I could think of and decided it has to be the 17 gear position sensor. Not certain this is the issue but I bought a used one on Ebay (could not locate a new one) and will try it. Any other possibilities?
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By amiracle40995
I've never seen the temperature go high on this thing. the fan runs almost all the time even though the sensor is reading at the very bottom of it's range. ive taken the cylinder head off. (nothing definitive but maybe a little fuel on top of piston with oil in it.i don't think this has anything to do with my problem )head gasket is 3 layers deep and I noticed some grit that might have been in between layers but nothing to say the head gasket wasn't intact. black carbon build up on piston. I've looked all over the head for cracks from over heating. I'm about to look again for hairline cracks that are extremely difficult to see. my buddy helping me said to order rings in case they are letting oil pass thru he also said get a new head gasket.. I'm looking at water in oil first and I'm not ordering rings. I haven't checked the oil cooler to see if it's defective yet. I'm just hoping someone had a similar problem. my only problem so far has been having to change the spark plug every 100 miles with 93 octane run thru it.
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By Bobby Courtney
I have a 2021 Coleman 400utv with 60 miles on it. I bought as project. It’s idled ruff and fouled plugs since it was new. I have removed and cleaned throttle body new injector new idle air valve new oxygen sensor. Installed ngk iridium plug. Starts and run good for about 5 or 6 miles and fouls plug. It runs rich all the time. I’ve done reset on ecu. I’m about to think it’s time to try a new ecu. Anyone please help.
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