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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 Alex
This is an interesting read. ADAS is main stream on cars these days. The technology looks to be headed towards UTVs and Off-Road Vehicles.
Potential Motors and CFMOTO USA have announced a new partnership to integrate advanced driver-assist systems (ADAS) into recreational off-road vehicles for the first time.
Sam Poirier, CEO and co-founder at Potential Motors, says the integration of its technology into CFMOTO’s vehicles will set new standards in the side-by-side segment. (Photo: Potential Motors Inc.) The partnership will first see Potential’s tech integrated into CFMOTO test vehicles. The companies will conduct extensive real-world testing at Potential’s purpose-built off-road proving ground in Fredericton, Canada, and CFMOTO facilities.
Source: https://powersportsbusiness.com/top-stories/2023/12/19/cfmoto-and-potential-motors-announce-industry-first-adas-technology-for-ohvs/
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By hisun junk
I have a 2018 cub cadet challenger 750 with a broke chinese hisun motor and I know that I'm not alone! Almost all the places that were selling them in Colorado don't anymore due to the return for repairs on the clutches and broken timing chains! Don't have yours fixed because it will happen again! They just replace the broken parts with more junk chinese parts! I talked with a UTV mechanic that has replaced one person's clutch 4 times! I have people contacting cub cadet about these problems and also looking into complete motor replacement from hisun junk to a Japanese motor in which the chinese cloned their junk from.
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