jlo 297 questions

[ArgoH2]

ok hey thanks for all the help I am all new to this stuff. How should I hook up the coil? and does the 3 wires coming out of the back of the motor do anything?

[LarryW]

I dont know that engine at all, but in any generic coil, the power wire goes to coil, the negitive side of coil goes to points. The points act as the switch to tell the coil when to spark the plug. If I get a chance to marrow I will look at my parts st300d machine and see if I can help at all. Thats the only machine I have ever bought that had an oem motor. And 1 of 2, I have ever bought that actually had a motor. But I havent really did anything to it but steel the trans. Its at my brothers house in his barn and I havent looked at it that closely.

[ArgoH2]

what points???? on the selenoid? could i bypass that and just ground it out?

[LarryW]

what points???? on the selenoid? could i bypass that and just ground it out?

Do you have a blue wire coming out of the flywheel?

[ArgoH2]

no 3 black when I got it one of the black wires was hooked up to the coil

[LarryW]

from what I can find, there should be 2 yellow, 1 blue and maybe 1 black.

[ArgoH2]

man this guy hacked this poor machine right where the 3 wires come out of the back under the exhaust there is something that looks like its missing appears to have 2 bolts to mount whatever should be there.

[LarryW]

man this guy hacked this poor machine right where the 3 wires come out of the back under the exhaust there is something that looks like its missing appears to have 2 bolts to mount whatever should be there.

That sucks. Do you have the electric starter?

You should be able to check continuity and find the one that gains and looses as the motor turns to find the right wire that goes to the points. Or maybe have to pull the flywheel off. But when you find that it should run to the neg side of coil.

[ArgoH2]

none of the electric starter stuff is hooked up but i am guessing its the one wire that was hooked up before just not sure what the other 2 wires are for

[LarryW]

one should be lighting coil, it produces the power to the lights. Other is charging coil that keeps the battery up to snuff to crank when there is no spark, lol. Both are different then the ignition coil.
The 3 wire is points.

If there is another it could be for the grounding of the coils to shut engine off.

[ArgoH2]

ok so i got a new plug pos from battery directly to coil neg side to one of the 3 wires sounded like it wanted to fire with the starting fluid I hooked gas back up and nothing again I pull till my arms fall off and nothing I am thinking the other 2 wires out the back are for something just not sure what. The coil gets really hot too????????????

[LarryW]

ok so i got a new plug pos from battery directly to coil neg side to one of the 3 wires sounded like it wanted to fire with the starting fluid I hooked gas back up and nothing again I pull till my arms fall off and nothing I am thinking the other 2 wires out the back are for something just not sure what. The coil gets really hot too????????????

What kind of coil do you have? stock? A coil does get hot. If you pull the rope with the spark plug siting on head does it spark?

[ArgoH2]

coil is not stock its a gm one yes it sparks when i pull the rope

[Amphiman1]

jlo

coil is not stock its a gm one yes it sparks when i pull the rope

no electric start?

[ArgoH2]

electric start is all bypassed to make it easy I thought lol I am at a loss for words here sparks i spray starting fluid but nothing tried wide open throttle closed throttle half way nothin nothin and nothin