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By DexKing
Good day everyone!
I am pretty new to ATV/UTV/Small engine repairs and would like input on your absolute must-have specialty tools for maintenance and repairs. Aside from the obvious wrenches and sockets, what are some more specialty type tools you use for troubleshooting? I don't plan to open a repair shop or anything, I just do this as a hobby. Looking forward to your responses!
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By HighPlainsIT
My son's trying to get a 2003 Prairie 360 running. Over a year ago, he'd rebuilt the carburetor using a SHINDY 03-112 rebuild kit from JT Cycle & ATV, and it was working fine; however, when it wouldn't run recently, he took the carb apart and the jet needle was rusted in place. He cleaned that up as good as possible and replaced the jet needle with the old one that wasn't rusty. Now, he can only get it to start about 1 out of 5 tries, and when it does start, it won't run unless the choke's on. The spark plug's good and is sparking. It has compression. Any ideas on what he should try next or look into?
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By Gwbarm
I pulled out my Big Bear needed to do a few things probably havent been started in a year. Gassed it up charged the battery started right up. I have been using it around the property for this and that. Went to hook up my trailer to pull up to the house while it was idling it quit. Went to start it turned over but wouldnt start. After trying a few more times lost all power. Pulled it up to the house with the John Deere, the first thing i checked was the Universal fit soloenoil from Amazon and it was only a 10 AMP fuse so it does not universally fit the big bear it should be 30 AMP fuse. At the time i remember noticing it but forgot, at the time i had other problems like wiring harness being in a box stuck engine and no spark. when i bought it, yeah i know, thats one ishould have walked away from, but if i go to the trouble of hooking up my trailer and going there, its following me home.
Thats old news, i still need to check it all out see if it lost spark and see if the starter shorted out it was acting kind of sluggish, i replaced the fuse with the spare 10 amp and blew immediately. I will try a 30 and see what happens.
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By BruinBeater
I got asked to work on a pair of Yamaha 350's. One has grizzly stickers, one has bruin stickers. Both are 2wd, straight rear axle. Not sure what year. I'd guess '04-'08.
Both have a no start condition. Both have been sitting 2+ years. One came with box of parts the owners 15 year old kid removed to try and get it running.
Started working on one last night. Pulled the rack, front plastic, fuel tank, recoil starter, carburetor.
Removed petcock from tank, cleaned screens, made sure if flows air, reinstalled.
Drained fuel tank, put in fresh fuel, swirled it around, letting is soak and will drain and check it later.
Cleaned up the motor a bit since its covered in mud. Checked the valves. The intake had less zero, actually, probably less than zero clearance. The valve seems like it was hanging open just a touch even at TDC.
The exhaust had maybe .004 clearance. I assume that went to zero once running.
Adjust intake to .008. Adjusted exhaust to .018
Scrubbed the carb in a sink with a toothbrush, dawn, and water. It looked like a mudball.
After that, sprayed it down with carb clean and took it to the bench. A/F screw was 1.75 turns out. I'm thinking this is a factory setting. It seems like this machine was never touched by a mechanic. All the jets actually seemed clear. The bowl had minimal residue in it.
That about as far as I made it for the night. Going to get a fresh plug, clean the air filter, add some fresh gas, and see if it will run. If so, I'll probably clean up the oil cooler before putting it back together. Maybe change the engine oil and rear diff fluid too.
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By Ant-Knee
I recently picked up a '97 Prairie 400 4x4 that didn't run. I didn't get much information from the previous owner except that it was running a couple of weeks ago, then started losing power. After that, it just wouldn't do anything... no crank, no start. The electric start didn't do anything and the pull start seemed locked up. When I got it, it had no fluids whatsoever—no oil, no coolant, nothing. I figured the engine was seized. I took the pull start recoil off and tried turning it with a wrench but it didn't move. I took out the spark plug and put some lubricant in the spark plug hole. After a while, I was able to get it moving and it turns now but isn't super easy to turn. I put oil and coolant hoping it would fire up but still nothing. I took out the starter and tested it and it worked perfectly. I tested the starter solenoid and it clicked so I assumed it is working. The battery is good and holding a charge. I also put in a new spark plug as the old one was somewhat corroded but didn't look that bad. After I tested the starter, I put it back in and ran some power directly to the starter. It started cranking the first time I gave it power but didn't do anything after that one time.
Any ideas of what I should do next would be greatly appreciated. Always wanted a quad so I really want to make this work but not sure if it is do=able.
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