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I just bought this thing and got the carb all cleaned today and it was running like a champ. There was a spare hot wire hanging down that was not hooked up to anything. I found it when I took all the covers off and did the carb work. Unfortunately I forgot it as well when I fired her up after cleaning and replacing the carb. While I was running her, the wire was lying across the exhaust pipe. The exhaust got hot, melted the insulation and next thing I know I see sparks flying everywhere Bike immediately shut down and all lights went off. I have nothing on the console now when I turn the key over. I fear I have fried my ECU. I found one fuse back by the box, a 30 amp, but it was good. Are there any other fuses on these things? Is there a way to test the ECU? Could it be the rectifier or voltage regulator?
By Brent Wright
Are these motors the same?
I have had this ATV since new, and no work done on the system before. It has an intermittent issue with starting for years but getting worse. Cranks but no start or have to cycle power. No Codes. There are times it starts right up and then times it will not start at all.
What I have done, new plug, new battery, new coil. Also, the manual I have has spec info for the H1 & H2, but when I check ohms & AC voltage & wire color, it is more in line with the H2 than H1.
Ok here is what I have done.
1. new plug then new battery.
2. checked and replaced the coil- primary was 5ohms and secondary was 20.4K ohms. Since my book said for the H1 the Primary should be less than 1ohm I replaced (new one had the same 5ohms, confused! H2 says 4.8ohms). Book says secondary should be 12k-20k ohms and it was 20K ohms. New coil did not correct the issue.
3. Stator, AC output while running was good, about 75 volts AC no load between the three yellow wires (but mine are gray wires like the H2). Ohms were also less than 1 ohm.
4. Crankshaft position Sensor. Again, H1 should have Blue & White but I have Blue & Green like the H2. I have 180 ohms across the Blue & Green wires, so this is good. But when cranking I have 2 volts AC. For the H1 book says 5 volts AC. But H2 says 2 volts AC.
So, is my position sensor putting out low voltage or do I have the stator assy for an H2 in my H1 ATV from new? Stator & position sensor are one assy. Has this ever been an issue that was noted? New Stator is $$$ so I don’t want to just shotgun a part.
Any help would be great!
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