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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 Hutch
Okay everyone, need some help here. I got my 2014 Bennche Bighorn 700 from my father inlaw. He has had it since new and as far as I know never had any problems with it until recently. It began with it being hard to start and having to give it some throttle for it to start up. Then it wouldn't stay running once it did start. If you go to start it, it will fire right off and only run for a split second and then die. If you give it some throttle it will start and stay running as long as your foot is on the pedal. While it's running its pretty rough and backfires. Here is a list of everything I've done so far. Initially I checked compression and it was low. I changed the cylinder, piston and rings. Took the head apart cleaned and laped the valves. Checked timing a few times. Adjusted the valves. New spark plug. Checked the air filter, it was fine. New battery. Changed the fuel pump because of a broken fitting. Changed the fuel filter, lines and fuel injector. Dumped the old fuel and put new in. Changed the air idle control, TPS, MAP sensor, Voltage Regulator, ECU and harness. I was getting codes 31, 107, 113 and 122 on the display. Once I changed the ECU no more codes have been displayed but still have the same issues. All fuses look good and as far as I can tell Grounds are good unless there are some I can't find. I'm at a loss here. Not really sure where to go. Compression was better after everything I did but I don't remember the numbers. I'll have to check it again if someone thinks that could be the issue. Any help would be greatly appreciated!
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By 2scoops
I am in need of an IAC for my throttle body. I contacted JMC and they said I had to buy the whole throttle body for $209. I left a message at Joyner USA...they haven't called back. I found a Chinese company which have them for $17, but shipping is $32. With that I still have to hope it is the correct one which arrives.
Does anyone happen to have one laying around they would sell?
I understand a workaround would be to eliminate it and use the idle screw. I believe that would cause problems with cold start ups??? Elevation changes???
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By owencole15
Massimo 500 will only crank when I jump solenoid with screwdriver cranks right up and runs great. But won’t start with key doesn’t do anything when I turn the key. Only thing it does is power everything as in dash and fuel pump then have to jump solenoid to crank up and drive.
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