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ATV not firing, spark and fuel are good, no "running"?
I own a Kawasaki Bayou 300 4x4, 1992. I've been having the re-occuring problem of the bike running fine one day and doing nothing the next.
The starter turns over perfectly, the battery is fully charged, the gas will flood the carb/air intake if you choke it too much, the spark is good with a new plug and wire - everything seems like it should work, but it won't turn ignite. We've tried pull-starting and push-starting, but the spark just doesn't seem to be igniting the fuel. (We tested with the good ol' screwdriver to make sure there was a spark).
What in the world could be the problem? I've been told it could be a colonoid in the back, but before we go taking everything apart, I'd like to have another opinion on what it could be.
It's been running fine, it's just this one problem. It almost NEVER happens after it's been running, it just seems that it doesn't start if it doesn't want to. Although it's older, we've hardly put any miles on it. I'm almost sure that it's a spark-ignition problem, but I'm not mechanically savvy enough to figure out what specifically it is.
There had been water in the fuel (Stupid Canadian Winters putting condensation in my gas.. sheesh) but we've added de-icer/water remover to the gas. Since then, it HAD been running O.K. Most of the time, with water in our fuel, it'll still run, but skip every second fire or so. Most of the time it'll idle properly, but if you try to rev it will sputter (with water in the fuel). Now, it won't even turn over. With the push-start, it sounds like it's running until of course you stop pulling it. It doesn't freeze up completely or anything weird, it just can't keep its own fire. I simply want to know if it could be a colonoid or if our coil is finished, or something along those lines.
I don't quite know how to edit my already-stated-statements, but god damn it was water in the gas. Miracle that it worked for as long as it did the days before. We started it with the charger hooked up, I suppose the starter sped up enough to fire what little percentage of our gas was actually gas. Thanks to answer #5, surprisingly the simplest explaination was the cure.
-.-'' This stupid, stupid bike.
We completely changed the gas, it didn't run right at first but we slowly got it going. It ran all day yesterday perfectly. Now? Back to the same crap. I've sprayed gas into the carbeurator, nothing happened except a puff of smoke and a small fire when I let go of the starter button. It's got to be either a timing problem or a spark proble, but I don't know which. Can ANYBODY clear this up?
>.< Nobody actually answered right.
It was the starter relay: with the dampness and age of the bike, I guess it just stopped contacting properly. We've taken the relay off the back of the bike and we're ordering a new one today. Should work fine. :)
Now I just hope nothing else makes it not run. -.-'
7 Answers
- Dirty DaveLv 61 decade agoFavorite Answer
Is the air intake blocked? Or perhaps the combustion chamber is flooded. Is their water in the fuel?
If not make sure you have the right plug.
- THing4CSALv 51 decade ago
With all you state I would have to say the timing is off or the plug is not gapped correctly. I don't know what a colonoid is but with Murphy's Law always hanging around that might just be it. I was also thinking if you have a key type starter the switch may be bad. If you can find a wiring diagram that shows what the voltage should be as you crank you may see that the switch is the problem. Good Luck.
The solenoid that odela195...is talking about is a condenser for your ignition system. Normally if it goes bad you will not have any spark at the plug. These are cheap enough to replace but I would update to a solid state ignition system.
- 1 decade ago
I would check the other things that the motor needs to run, all gas motors need all 4 things to run. #1 is fuel but not just gas it must have air as well, so try starting it without the air filter or at least make sure it is clean. #2 is compression, to check this just leave out the spark plug, put your finger over the hole and crank it over. If the motor is in good shape it will blow out the air in the cylinder and push your finger off the hole.#3 is spark, you have checked that and it was ok. but it can still be a problem, it must spark at the right time, when the piston is near the top of it's stroke. this will be much harder to check and you may need to take it in to a good shop and have them check that. #4 is exhaust, the motor will not run if it is blocked or if the exh. valves are not opening. to check this try putting your hand over the tailpipe and crank it over with the spark plug in. The motor will not create enough pressure to push your hand off the pipe but you may still feel a small push or if you have someone who can help you crank it over so you can put your ear up to the opening you should hear some air. Note: Do not do this with the spark plug wire attached as it would be just your luck it would start with your ear against the pipe. I hope this covers all the basic stuff you should check and good luck.
- the pump guyLv 41 decade ago
I had a 1991 and the same problem.I put in a carb kit which helped but no cure.I then adjusted the valves and to my surprise it worked fine .
Ps. Get rid of the water. Clean out the tank.
Source(s): 35 year mechanic. - Anonymous1 decade ago
a solinoid will ,i think stop all spark but i do know that you can chrank all you wanit and it will not start is solinoid is faulty it absorbs all the extra spark from ignition. and burns otu sometimes check it it looks like a small round cylinder about an inch long and siler or alluminum color and should be by your points .
