120 replies to this topic

[iam_canadian22]

so heres the backround on the sled, 440 chassis, fresh 700 motor, bought full 800 harness and mpem from a member on here over the summer, also bought stator mag and pick ups from ebay, so put every thing together go to start and no spark, test kill switch its good, test dess, its good, test resistance from pick ups, they're good too, test resistance from stator, also good, than check voltage ouput from pick-ups going to the mpem and nothing, tried another mpem from another running sled just to eliminate that anyways and nothing changed, so is it possible for the stator to test good resistance yet not produce power? and second thing, can running an 800 mpem on a 700 cause damage? i plan on sending it out for recurve but have a very important rememberance fundraiser ride i'd like to attend in a week, thanks in advance

[formulasteve583]

I had a stator on an FIII test out as being good but in the end it was my problem.

[Revitup600]

Is it possible u put trigger coils in wrong spots? The one with blue wire goes to bottom...

[iam_canadian22]

thanks, i was thinking it could probably be possible if the problem lies in the plates and not so much the windings but wanted to check opinions first from the experts

[iam_canadian22]

triggers are in correct order, blue bottom, made sure they were properly isolated from the cases and not shorting to the case and all was good, even tried turning motor backwards just to make sure wires arent mixed up in plug and still nothing

[mbret2004]

Is it possible u put trigger coils in wrong spots? The one with blue wire goes to bottom...

Does the flywheel move when the crank is turned, thinking the woodruff key might have fallen off the crank. It's a stretch. What did you read for trigger coil resistances? Did you re-apply the silicone on the coils? Did you ohm each yellow wire from the stator connector to chassis ground ?

[iam_canadian22]

Does the flywheel move when the crank is turned, thinking the woodruff key might have fallen off the crank. It's a stretch. What did you read for trigger coil resistances? Did you re-apply the silicone on the coils? Did you ohm each yellow wire from the stator connector to chassis ground ?

i pulled the mag off, woodruff key was still on and tight, ohmd the wires as shown in race manual, triggers spec said 0.00-0.05 i got 0.04 i believe it was, it was in the specs anyways, same with stator, although i didnt ohm them to ground, just did as shown in manual, what should reading be when tested to ground, and would this be stator plugged in or unpluged to check to ground?, thanks

[mbret2004]

your yellow wires are for the stator's output. If any one of the yellow wires shows continuity to ground you're shorting out the stator. As a result, the stator will be inoperative.

I'm not at all familiar with the 440. Most of the sled trigger coils, on the 07 models, resistance is between 190-300-ohms. I'm not sure on the 440.

Remove the ECM connector and check for corroded pins on it and the plug.
Do the same at the voltage regulator.
Post back

[iam_canadian22]

its only 440 chassis, all electrical is 04 800 including triggers and stator, all connections were clean and proper, i'll test the stator to ground like mentioned, and post again, thanks again

[mbret2004]

ok I would think the trigger coils on the 04 800 would be as mentioned. Can anyone confirm?

[iam_canadian22]

i went by the info given in the 06 race manual for the 800 h.o.and 600 h.o., as for those stator wires i checked and they are not shorting out to ground

[iam_canadian22]

also dont those yellow wires just provide power for lights and acc. and the pickups send the power for the spark? or am i mistaken? the manual showed i should be getting very low voltage from the pickup wires, like .2-.3 i believe it was, but im getting .01 at the very most, most pulls got nothing

[renrobb]

the yellow wires are 3 phase ac current from alternator-they charge the batt, run lights and stuff. They also provide the power for the ignition coils and everything else. The pickup coils are sensor coils that signal when the mpem should fire the spark-in effect: crank position sensors, using magnetic field.
Since you are getting a signal from the pick-up coils, and their resistance is in spec, consider them ok for now, and go further down the line to the rectifier/regulator-check to be sure all connectors are good, especially grounds and see if you're getting any V jumping from there when you crank the engine over by hand-you should be, as long as that rotor is spinning inside the stator, power is being made.

[mbret2004]

O.K. so your sled is being a pain in the arse I see. Take the plug with the three yellow wires and one green off the voltage regulator. You'll need to read the yellow wires in pairs, using one lead from your multimeter in each yellow wire. There are three different combinations. Have someone pull the sled over as if they were trying to start it. You should get 3 to 5 volts AC on each pair. If not the stator is bad. Post back.

[iam_canadian22]

O.K. so your sled is being a pain in the arse I see. Take the plug with the three yellow wires and one green off the voltage regulator. You'll need to read the yellow wires in pairs, using one lead from your multimeter in each yellow wire. There are three different combinations. Have someone pull the sled over as if they were trying to start it. You should get 3 to 5 volts AC on each pair. If not the stator is bad. Post back.

so same way i checked all their resistance right? call the 3 wires abc, test a-b, a-c, and b-c, will do that first thing in the morning, sled is at my buddý's place, if i get the 3-5 volts its good? if not i can call it the problem?, next step if it tests good, move on to the regulator, i dont recall seeing a test for it so how would i check it?