1988 Suzuki Quadrunner 250 LT4WD - No Fire
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By TomJulio
My 1992 TRX00 recently stopped firing. I understand this is a common problem. I have ordered an aftermarket CDI unit. TJ
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By Guest
Hey all, new to the forum! I just bought a 1998 Kawasaki bayou 300, 4x4 not running. Initially I found no spark. Ended up playing with the plug wire (made sure plug top and wiring was touching) and got spark yesterday and the quad fired up off ether. Come to work on it today and now no spark again. Before I got spark and now today if I touch the plug after cranking I get shocked, and it will spark after I release the starter button. I was jumping the quad with a freshly charged car battery that has 12v while cranking. Cleaned out the kill switch and ignition button. All looks good. Purchased new plugs. They're are a lot of wires cut/ disconnected. But shouldn't matter if I got spark without them connected...
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By Joeguy
Did a top end rebuild, honed .010 over, new piston, rings, valve seals, etc. When i re assembled i only had like 30 psi of compression but then after it sat all night i now it seems to have gained some somehow, there is much more resistance pulling it over and i even got it to fire for a few pops. Issue i got is that it makes a loud squeak noise through the intake i believe (goes away when throttled so something with carb area) and it seems to not want to run well. I took head cover back off and timing seems fine so im not sure if something is sticky and that's why i got some change over time or maybe the valve lash is messed up after doing all this, i did get another cam for it but i wouldnt think it would make enough difference to need to re lash. Any insight on next step would be appreciated, i will be looking up how to do lash on these because it is a very weird angle to slip a feeler gauge in.
Actually cam is slightly off now that i look at the picture, thought it was good while looking in person. Hmm.
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By RGS
1989 Moto 4 YFM350ERW intermittent spark.
Quad has set for about 7 years and was running when parked. When I replaced the battery and attempted to start it had no spark.
What I have done. Followed troubleshooting in the manual.
1. Coil failed the resistance check so I replaced it. Still no spark.
2. I performed resistance checks on the stator and they all pass.
3. Found a bad rear brake stop switch and unplugged it and connected the wires in order to disable. Now I have intermittent spark. I believe that the issue is with either the stator or CDI and not sure which.
1989 seems to be a transition year for electrical. I can get new aftermarket CDI units for 87-88 and 90-94. I cannot get ones for a 89. I can get new stators for 87-89 and 90-95. Looking at the schematics the wiring on my moto is closer to the 90 ones on the ATV side of the CDI and closer to the 87-88 on the stator side of the CDI. Looking at part supply sources the stator housing is the same part # for all the years and looking at some of the stators on Amazon that have the dimensions on them both of the stators are the same size.
What I am thinking of doing is to replace the stator and CDI with a 90-95 one as these parts are all readily available. Does anyone know if this has been tried before and if there are any issues with doing this.
As a side note I also have a 1993 Moto 4 YFM350ER that has been sitting longer but it is located about 400 miles from me at this time. By doing this change in addition to being able to get parts I will also have 2 ATV’s that are the same electrically.
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By Atomusthenes
This topic is being opened to discuss the feasibility of forced induction on small engines.
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