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By hisun junk
As I tried to do a conversion with the Yamaha 660 motor, I realized the 660 was never fuel injected so it would not work for the fuel injected hisun motor swap. But the good thing is the hisun 750 motor is a clone of the 660 Yamaha but with the components for the fuel injection (cam/crank position sensor). So that left me with a new rebuilt Yamaha 660 and still a broke 750 hisun motor. I took apart 750 think the timing chain had broke from all that I've heard about these motors. The chain was not broke, but just off cam and crank gears! The chain tensioner was at fault! I've ordered Yamaha 660 replacement parts, chain, two exhaust valves (which got bent when chain came off while motor was spinning) and seals. The piston has 2 little nicks where it had hit valves but no damage otherwise. The head is being redone at the machine shop and I'll be putting it back together in the next couple of weeks. Also I finally tracked down a Service Manual with all the info on the 550/750 Challenger.
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By Marcus Bentley
Bought my coleman u400 from TSC last year, was running great. I live on a lake and use it almost daily to climb a pretty steep hill from my house down a path to the water. Last week was driving up the hill and it just quit. First thought was I'd run out of gas but it has almost a full tank of gas in it. Have tried to get it to restart and the lights come on and it tries to turn over but won't catch. Checked the battery and tried to jump it just in case but it's not that. Checked the starter and it's good. Can't find the spark plug to even check that. I called the local repair guy in town and he told me he doesn't work on Hisun since it's all shit and I'd be better off burning the damn thing so that's been no help. Would appreciate any other ideas.
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By Beaverdam83
Hi all, in a world of scammers and blah how does one safely buy a UTV through email and ship it across the country. Anyone have a process to not get screwed ? Guy Sent me pictures. Guy Sent me a video that was dated today. I mean. I'm nervous. Need help
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By GaryL
550 started and quickly died (infrequent occurrance) In my haste to restart, I believe I stepped on accelerator while turning key. Now starter does not engage. Did I set off some sensor? Unit has 2 relays in fuse box related to starting but I have no way of testing. Thanks for your review
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By scottkkk
Hi Guys i need your help. what is the black yellow and blue wire for? black for ground? what is the yellow and blue for?
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