T-boss 410 spark plug upgrade
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By Robby
Hello, I have a 2013 500 utv hisun. Was running ok and cut out while parked. Bike will not start now. It turns over, but won't fire. I have no spark and no fuel. I replaced fuel pump, ignition coil, spark plug, cdi, voltage rectifier and all the fuses and relays. Could bad stater cause no fuel because I can't hear the fuel pump priming. Any info on where to start looking for problem.
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By Bobby Courtney
I have a 2021 Coleman 400utv with 60 miles on it. I bought as project. It’s idled ruff and fouled plugs since it was new. I have removed and cleaned throttle body new injector new idle air valve new oxygen sensor. Installed ngk iridium plug. Starts and run good for about 5 or 6 miles and fouls plug. It runs rich all the time. I’ve done reset on ecu. I’m about to think it’s time to try a new ecu. Anyone please help.
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By Travis
Many people have issues with the kawasaki FJ400 engine fouling out spark plugs, after working on a few FJ engines and 600 series Mule's with this issue, i can say the fix for this issue is using a slightly hotter spark plug... the factory recommends a BPR6ES NGK plug.... the Number in NGK plugs represents its heat range and somewhat odd, the lower the number the hotter the plug, at least as far as NGK is concerned. If you have a Mule fouling spark plugs try installing a NGK BPR4ES spark plug.
FROM NGK
A hotter heat range spark plug has an insulator design with a longer heat flow path to the metal shell of the plug. As a result, more heat stays in the ceramic firing end and less is dissipated to the engine. A colder heat range spark plug has an insulator design with a shorter heat flow path to the metal shell of the plug. As a result, less heat stays in the ceramic firing end and more is dissipated to the engine. For a spark plug to function properly, it must have a tip temperature high enough to burn off carbon deposits (self-cleaning) and avoid fouling, while remaining low enough to avoid overheating the ceramic firing end and pre-ignition.
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By Alien10
I have a Coleman Outfitter 550 purchased in January 2022 that runs and operates pretty well. 65 hours on it so far. It is a work vehicle for my 10 hilly acres with two 1 acre woods and 5 acres of "lawn". The rest is under a lake.
My parking brake does not seem to have any grip. It worked when new but after a month or so, it is just almost useless. I press the parking brake pedal hard until it stops. Still, it won't hold even on slight inclines. I don't see the caliper move as I press the brake pedal down. There seems to be plenty of pad left on it and the rotor is shiny as if it is rubbing a little when applied, but not enough to stop it from rolling.
Any thoughts on possible causes?
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