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2604 Views 23 Replies 6 Participants Last post by  TRIPLE7
I just bought my son a 1986 Honda trx 125. When I first got it you could pull start it (dead battery) and it would run ok. I bought a battery and put in a new carb kit and he rode it all day. That night I put it on a trailer and drove to the deer lease. Got there and couldnt get it started. I thought that the carb had trash in it so I bought a new carb and installed it. I noticed that the spark plug wasnt getting constant spark. It seemed that it would spark a few times when you hit the start button then stop, it would then spark a few more times when you let off of the start button. I had the ignition coil checked and they said it was good. My next guess is that the pick up coil is bad but I checked it with an ohmmeter and I am getting a readying of around 100, not sure what it should be. When I push the start button it turns over and every now and then it will fire off for a few seconds. I just dont think that I am getting a good spark. Any ideas??????
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Did that particular model have reverse?
Black plug is running rich... you may have a clogged Idle circuit in the carb. when you cleaned the carb did you remove the main jet and slow jet to clean them? if not you will need to remove the carb again and remove the jets and clean them and the orfices they came out of.also you need to clean the float needle seat orfice and needle.
the pilot should be about 1 1/4 turns out from seat. You need to remove the jets and clean's a must. there is no adjustment to them just unscrew and screw back tight dont over herculese them they will break.
Idle too low? did you set the pilot? I think I said 1 1/4 turns out from seat try another 1/4 to 1/2 turn then reset the idle. you want it just high enough so when you engage the shifter it dosen't jump profusely, it will jump a little. my 110 does it. You did clean or replace the air filter didn't you?
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