

- #1982 yamaha bravo 250 running rough bad spark plug symptoms manual#
- #1982 yamaha bravo 250 running rough bad spark plug symptoms full#
>I’ve read a lot about the flywheel magnets and stator issues these bikes commonly have however it seems to me that none of the symptoms are similar to mine, a few here and there but nothing concrete. I’m not sure what to do and I’m just about out of hair to pull out. I put it together checked the voltage at an idle with the lights off and was getting a good reading and ran it around the yard a little and it began to misfire and pop I pulled it in checked the volts again and was back up around seventeen, lights on it dropped to 14.6 but still was backfiring. Today I cleaned the carb and once again it was still very clean inside. I put it aside due to other projects which were two 90 atvs and come to find out I had junk in a gas can that clogged both of them up, so I thought maybe that’s what had happened to the 400. After three or four times of riding it it has begun to run like garbage again.īackfiring and popping and dying and it would only start and run with the choke halfway on.
#1982 yamaha bravo 250 running rough bad spark plug symptoms full#
It seemed to run great with the lights on which led me to believe the “universal” regulator we had bought which was much cheaper than others was the wrong one for my bike, we don’t have the receipt and I can’t get much help from who we bought it through to get it returned so I said screw it and ran the bike doing things around the yard like pull the harrow with the lights on until I could afford a full priced regulator. With the headlights on it drew down to almost perfect voltage, 14-14.6. I put the meter back on it and I was getting almost seventeen volts back, which was not the case when we first installed it. I figured quite a long shot but what the hell.

I began searching just about every forum on the web and found a guy that had the wrong or bad voltage regulator that was sending to much power to the battery if he’d turn on the headlights it drew enough power to run fine. I then put the carb back on after a thorough cleaning and installing a inline filter and had the same problem. The carb was fairly clean a few chunks of stuff were in it but I’ve seen worse that runs better. A short time later it began to run rough, so I assumed it was a fuel issue which, is what it seemed like and also we had done nothing to the carb other than drain it every year in the 10+ years we’ve had it. The battery began charging correctly and everything seemed to run fine, appropriate voltage back and such. What we learned was the voltage regulator could be bad so we purchased a “universal” for a certain amount of years arctic cats, mine falling in the category. Last summer I began to have battery charging issues, my dad, who was the original owner of the bike, came over we started looking into fuses and wiring connectors and YouTubed the symptoms. The problem, The machine will start fine and idle like it should, once you get into the throttle it will start to misfire and back pop but will not die even if you hold the throttle, it just pops.
#1982 yamaha bravo 250 running rough bad spark plug symptoms manual#
I have a 2001 arctic cat 400 manual shift. Here is exactly what reader Jayson asked the Answerman (it is long and extremely detailed), followed by his answer: Why does my ATV engine pop when I give it throttle? This is the beginning of a very detailed question one of our readers asked the ATV AnswerMan. The bag contains a fine abrasive that sand-blasts the residue off the electrode.The ATV AnswerMan digs into a 2001 Arctic Cat 400 If your spark plug has white or black residue coating it, you can clean it by placing it in a spark plug cleaner bag that attaches to an air compressor.Some spark plugs come with pre-measured gaps while you’ll need to use a spark plug gap tool to properly measure and adjust the size for universal plugs. If you need to get new spark plugs, check your vehicle’s manual to know the proper gap sizes to use so they create a spark strong enough for your engine.If you see any issues, then it’s time to change your spark plugs. Look for signs of damage, like a rounded electrode or worn-down insulation in the middle of the cylinder. Remove the spark plugs from your engine one at a time using a spark plug socket wrench, and visually inspect them. Locate your spark plugs by finding where the thick black cables attach to your engine cylinders. Fouled spark plugs may not be able to produce a spark.
