2017 Intimidator XD4 800 Check Engine
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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 Will Sutton
I've got a 2023 UT400 (bought from tractor supply) and I've been beating my head against a wall with it.
It will start and idle perfectly. The second I touch the throttle it sputters and dies.
I've checked that the fuel pump is working (it is).
I've replaced the injector, throttle position sensor, O2 sensor, and intake air sensor. All with no change.
I've just taken a look a the schematic, and there is a crank position sensor as well.
Could this be the source of my troubles? If so, where is this thing located? I can't seem to find it on any drawings from the parts suppliers.
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By Jim Kessell
2005 American Landmaster
EH65 Subaru Robins
spits fuel from breather hose into the air cleaner and then down into carb. What’s causing this ??
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By John M in Louisiana
Quick question about replacing the plug. One of the prongs pulled out, so I'm thinking it will be an easy fix to connect the old cord with a new plug but I'm unsure about the specs. 15amp 125v? Is it more complicated than that? I do plan to buy a plug that's water tight.
Thanks in advance!
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By Kingfish
The conversion took about 350lbs. off the vehicle. It never rode great, but now I feel every crack in the road. I have backed off spring compression nut to the point just under where they would move around if suspension was at full extension, but it is still very stiff. I would like to put some softer coilover springs on it, but I have no idea what the spring rate is with the original springs so I would just be guessing on what to order. Does anyone have the data for the original spring compression rate? I am willing to give up a little ground clearance for a softer ride. Right now when sitting still the rear suspension is at or near full extension and the rear tires have several degrees of camber which will cause uneven wear if allowed to continue in this state.
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