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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.
By Brock Kincaid
Ok so just picked up an 02 ds 650 and the guy said he couldn't get it to start. He had a shop put new shims in it and I had them checked and they were ok now things I've done is new plugs even though guy had just put new plugs in it.. got new carb 42mm just like the one that was on it.. bought new intake manifold because the one that was on it someone got way to tweaked out and ported the shit out of it excuse my language but yeah so installed new intake manifold and it just won't start like its not getting enough fuel. Timing seems to be right it does fire every now and again but just barely.. did a compression test today and it was at 90psi.. i know thats low but don't know where I'm losing compression.. valves we at .06 and .07 when checked im lost ive tried everything I know and can't figure it out
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
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