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By Nick Gudex
Hello I am new to this site and I havea problem. I have a 1987 big bear 4x4 that will not spark. I tested pick up coil per repair manual and I tested my new coil both ok. It puts out 9 volts at the coil but It is reversed polarity. So when I hook my meter up to it she shows -9 volts while cranking. When I put a test light on it it flashes. Being an electric system this should tell me something but I don't know what its telling me. I have yet to meet one i could not fix but this old girl has me stumped. Any help would be awesome. Thanks to all.
Back again with another headache, maybe you guys can help me out.
Picked up a 87 Bayou 300 not running of course, all stator wires melted
on the motor and also no spark. I checked the pick up coil ohmed out good.
traced the wires and led to no cdi box, yes missing. So ordered it and while waited
fixed the stator wires, had to wire direct to harness. Get the cdi installed and after a lot
of other things started it up. Battery dead so used a batt charger to start it. Now when i shut
off the charger the motor died. So i check charging voltage...nada. I see voltage regulator is
old and catalist leaking so i replaced it. Same thing no charge. I check stator and no voltage
with it unpluged from harness while running. Soooooo i replace stator. Now Stator wires have
23v and up to over 50v at higher rpms. So i know its charging now. Connect everything back up and
no charge voltage at battery! Still dies when i shut off charger. All 3 yellow stator wires have good voltage, checked
harness from stator to regulator and is good. The white wire has battery voltage at regulator, the brown wire has battery
voltage at regulator when key on. The Black/yellow stripe has good ground. I get 3 volts at battery when i shut off charger.
If i connect old regulator i get 7 volts when i shut off charger. Do i have a defective new regulator? Im stumped. when i
figure this one out i have a big wiring problem on another one ill let you in on. Az
Hey there! New guy here! So I bought an 87 250. I turn the key and it has ignition light. I press run and the engine turns over. Guy I bought it from said the carbs may need cleaning, I worked them good cleaned and blown out. I reinstalled the carb and still doing the same thing. It’s getting fuel, the battery is brand new and charged I’m lost here!( purchased a new carb on its way) anyone have any ideas
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