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I actually became a member back in January but now I am a premium member. I am purchasing a 2002 Honda ATV and it needs some work. Fairly new to the ATV world. I have worked on automobiles/trucks and small engines for most of my life as a hobby. From what I have seen so far it is a very helpful community on here and excited to have joined.
I'm new to the forums, but not new to the hobby. Admittedly though, I'm not super mechanically capable. But usually my contributions result in the problems I've attempted to solve via help with the forums and I will post my solutions. Or it I've solved a problem myself, I will post about it and how I solved it.
I've owned a lot of used (ever bought new) ATV's from: Yamaha, Honda, Suzuki, Kawasaki, and Polaris. From sport to 4x4, and have developed all my biased opinions of each brand.
Well that's my intro in a nutshell!
Joined a few days ago. fixing up a 01 Bayou 220.
Finally got to spark this evening with a New Igniter, CDi box and after getting the correct key switch,with help from a member on here providing me a wiring diagram. carburetor was removed for attempted cleaning by previous owner, so im putting a new one on it, All the plastics are in good shape, but not on the machine except for the front "hood".. all the fasteners for them were MIA, so i'll probably just remove the plastics to keep them from flopping down or do a poor mans ziptie job and make it look half way decent.
any recommendations for a good cheap place to get tires for it? don't need mudding tires or anything. just need tires that will hold air.
I got my KLF300 running again with your help a couple of months ago, at that time it was the ignition coil that had failed. It has been in use since then without issues until two weeks ago.
When the new issue showed I was going at about 10km/h and it suddenly slowed to a halt. I started it again after that with choke and I drove it 400 meters and parked. Next time it was really hard to start, and since it was low on gas I thought that was the problem. It didn't get any better with a full tank, so I assumed it was the cold weather, and adjusted the pilot slightly.
After that it I actually got it started again with full choke and some slight gas, I drove about 300 meters and then it slowed down to a halt again. After that, it hasn't started again.
The compression is 165psi. The spark has good intensity, the ATV has functioned before with the same spark "intensity"/light. I *assume* that it has gas as well, there is definitely gas on the spark plug when I remove it
I have checked the carburetor slightly, the float works, diaphragm looks ok, but I haven't disassembled it to really look for dust and such in all the small places.
My theory right now is that it might've been some dust in the gas tank that went into the system, it's just a theory
I'm thankful for all the help and pointers I can get, don't hesitate
/ Pär, Sweden
So, I found myself in the only 5' deep water hole in Moab with the King Quad. Before I could get off it swallowed water at idle and died. The river water was not very clean. I pulled the plug and pumped the water out of it with the starter. I cranked on it and it popped for a second and then was done. Towed it back to the trailer. When I got home I checked the compression and it had none. I have a factory service manual. Disassembled and found the rings stuck in the piston lands. New rings and back together. I try to start it and get a C12 code CKP - crank position sensor. Troubleshoot and find it to be shorted. Installed aftermarket CKP, still get code. Check voltage on new CKP and only get 4.5V, manual calls for 5V minimum. Pulled every connector apart on vehicle and cleaned. Have continuity from CKP sensor side of connector to ECM harness. Install a known good ECM from another 2005 KQ I have. Vehicle fires and I let it run for 10 minutes. Shut it down and put the original ECM in and get a C12 code again and won't fire. Put the known good ECM back in and get C12 and no fire. Tested both ECM's in the other KQ and runs well on both ECM's. Installed a used stator and CKP. Still get a C12 code. Check used stator, 200 ohms and 6.5 V out of the CKP at the ECM harness. Checked ground at ECM harness and it is good. Checked spark with spark plug and without, none. Checked resistance and peak voltage on coil and it is in spec.
This thing has me baffled. All of the electrical possibilities seem to check out. Might be far fetched, but could the rotor key have sheared when it shut down suddenly when the cylinder filled with water? I know rotary lawn mowers can shear the flywheel key when the blade stops suddenly from a rock or stump. If the key is sheared and the flywheel is out of time by a few degrees could this be giving the C12 code? The voltage output is correct but at the wrong crankshaft position (wrong time).
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