oh, and '86 models MUST have a battery hooked up in order to fire the spark plug !.
Thanks for replying Shadetreeoh, and '86 models MUST have a battery hooked up in order to fire the spark plug !.
I must be getting old ?, I dont remember anything about that gasket kit ?..oh well..as long as it works..right ?. as for the '86 needs battery ?, forget that !. I was told wrong along time ago. its the '87 foreman that must have the battery in to fire plug, not the '86 !.Man that would be great if it was just the battery. starter squeals and turns real slow. Would save me a rebuild!
Speaking o rebuild I bought that gasket kit Shadetree recommended. $10! Got the passage plug snd all the seals!
if the stator, c.d.i. , and the reg/rec all don't match for the correct year model ?, you will never get spark. there should be 3 yellow wires coming from stator.Ok still no visible spark.
3 good batteries but starter barely turns unless you push the kick starter down;
No fuel pump buzzing, but there is power to fuel pump; pump runs good when harness jumped;
Brand new CDI;
Changed spark plug;
Ignition coil primary .5 Ohms;
Ignition coil secondary ~8 KOhms;
Removed cap ~ KOhms;
Pulse generator 324 Ohms
There’s no Exciter coil wire (PO installed an aftermarket stator)–and the main harness Bl/R wire is capped–like the PO installed a D model stator and CDI. It ran with this setup when i got it.
No moused chewed harnesses–i even slaved in the replacement main harness–no change
My next moves:
Better check the engine numbers
I plan to swap the fuel relay and CDI into my running Fourtrax to isolate a potentially faulty module.
There is a yellow wire coming off the stator but I checked it for resistance like it was the exciter coil wire but i got zero Ohms
the exciter coil is made into the stator, if the wrong stator is in the motor ?, then the PO was trying to run it in ac mode would be my guess.Thanks Retro
Where is the exciter coil? When i see an 86 stator am I looking for a module attached to the Bl/R? Are they replaceable or do you have to buy another stator?
that’s a great thot, and why i need to recheck. If i can get the right resistance reading off that Y and Gr/W, then I’ll try hooking it up. More tonightCould that 4th yellow be the exciter wire color in china..? LOL
You could measure voltage outputs of each of those yellows if you have a peak voltage adapter and a decent multimeter, to learn if one of them is anywhere near to 100 volts AC at cranking speed.
Anyway, there should be 6 wires in an 86/87 Fourtrax OEM stator harness. The pulse gen wire should be Blue/yellow, the ground should be Green/white, the exciter should be Black/red, with three alternator Yellows.
Thanks no this is great stuff—the reason I bought this project was to learn the hard stuff! makes for perfect understanding now why the fuel pumps don’t run until the engine rotates.Sorry 'bout all this thread pollution Goober... but figured I'd share the safety feature mentioned earlier that Honda used on the early Fourtrax models. In the pic, see that Black/yellow wire coming from the CDI and going to both; the ignition coil primary, and the fuel pump relay..?
The fuel pump relay cuts power to the fuel pump in event the motor stops for any reason. The fuel pump cannot start until the motor is being cranked or kicked over while the ignition switch and kill switch are both in run position. So what you observed with your fuel pump was normal since the ignition is not yet functional.