Originally Posted by chipskittles

So yes, a 300B flywheel and stator are all that are needed to replace an original flywheel.

Originally Posted by chipskittles

So after receiving a 300B CDI box and getting no further I started to go back to the basics, I was getting fuel as shown on the plug, but I noticed that I would get a strong spark but if I kept cranking it would drop out or stop completely. Thinking it was the CDI I swapped back the original one and it did the same thing, checked grounds, same thing. I found my spare spark plug and popped it in this morning and lo and behold it fired up and actually stayed running. It runs fine with either CDI, even at high revs so only difference is the connector it seems. I have to adjust the mixture because I think the intake boot was leaking and now that it's fixed the carb needs to be leaned a bit. As it is I still was able to ride up and down our long street a few times today and it ran great just a little boggy when starting out.

So forensic analysis looks like my spark plug went bad just sitting, then the starter clutch died while trying i was trying to start the atv . Who knows how long the magnet issue was going on, but I suspect that magnet took out the spring that surrounds the starter clutch bits because that's all that was actually wrong with the starter clutch. Hopefully no magnet pieces made it out of the stator cavity into the main motor case.

So yes, a 300B flywheel and stator are all that are needed to replace an original flywheel. You CAN reuse the pickup coil without any modifications; I did not realize until later that the harness for the stator and the pickup, while they appear to be contained within a solid rubber block, are actually two rubber blocks that had fused over the years, but can be easily separated with a razor blade. Timing marks on A and B flywheels are different because they are read from the front of the stator cover on the A, and from the top on a B. This could be problematic when adjusting valves but I think I can find TDC without too much trouble without the marks. If it's ever an issue it's easy to stamp lines into the rim of the B flywheel.

Thank you to everyone for your help, I appreciate the insight, suggestions and support.

Originally Posted by chipskittles

A stator is too big for B magneto. Have to buy the B pair. C stuff might work as well, it got a little fuzzy when you get into the 90s models

Originally Posted by chipskittles

If I remember right the 86-87 tool just threads in, and you tighten it while holding the magneto somehow. The Kawasaki way is a strap tool I think I wedged mine with a screwdriver. Once you have it held just tighten the bolt it will pop right off. The newer ones use the other tool that tightens on the outer threads. Might as well buy it at the same time because that's what the b and c magentos use

Originally Posted by danj1001179

Stator and Rotor came in and I put it back together yesterday. KLF300A is running, starting, and charging as should be! Thanks again chipskittles for your time in research and sharing the info! Saved me $300!