Fix it or eat it

[Doc Sprocket]

He//, if you were closer, I'd buy it!
Don't buy a new coil until you have verified that the existing one is in fact bad.

 

[Probedude]

I haven't searched - sorry. Are these coils electronic? No other connection needed, no points to set?

 

[redsox985]

You said you bypassed the kill switch, what did you do exactly?

 

[Odonnellp24]

I don't know if it has any points to set, haven't removed the flywheel.

I'll have to hook an ohmmeter to the coil and check it. Not sure what I'd be looking for or how exactly to hook it up. A diagram would help, I've done a bit of electrical work but I'm not familiar with the small engine electronics.

I noticed the part listed on eBay was for a gx160 Honda. I'm assuming parts are swappable.

As far as the kill switch, I unhooked it and tried cranking with the wires directly connected as well as disconnected. I basically tried it shorted and open.

I should have a chance tomorrow to post some pics that may help, I've been working a lot of overtime to help repair the damage done to my bank account from my last project. Thanks for all the replies so far.

 

[Doc Sprocket]

Parts from the GX should be *generally* interchangeable. No accounting for some chinese knockoff work.
I believe your engine does not have breaker points, too new.
There is a wire that goes from the coil directly to the kill switch. Disconnect this wire from the switch and put tape over the end. This will completely eliminate all kill/low oil sensor possibilities.

Regarding testing the coil- we'll have to dig you up some specs, but taking resistance readings across the coil will tell you if it's any good.

 

[Odonnellp24]

Pics

So here is my magneto all scraped up. I performed a bunch of continuity checks and here's what I got:

Coil: Tested from the spark plug connector to the connection where the coil goes to the little stepdown transformer (I think thats what it is) and got ~2kohms so the coil isnt shorted or open.

Kill switch: Functioned like it should

Step down transformer: I had to look at that for a minute but I think I tested it right. I took the one lead that went from the kill switch to the transformer and the coil (white and black in the photo) and tested it with the low oil cutoff (Yellow) and got ~2kohm. Guess that means the transformer is ok. I also tested the coil-transformer lead with the ground (black/white and the white lead) and it was infinite ohms. So that was good.

Hopefully I tested it right. I'm gonna feel like a total freakin tard if it was the plug. My troubleshooting sure looks like its pointing that direction

Btw, no points under the flywheel. Just a whole lotta nothing.

 

[Probedude]

That box with the yellow wire is the latch for the low oil sensor to kill the engine.
I don't see a magneto in your picture. Where is it?

BTW, I googled and found no points for these engines - it's electronic.

The lead from the coil, leave it disconnected like the other guy said. Don't hook it up to the low oil module or switch.

 

[Odonnellp24]

I replaced the spark plug because I narrowed everything down to that but it still won't turn over. Maybe the old magneto off the Tecumseh will work. If not then I'll just use it to tear down and show my son how engines work...I'm sure he will get a kick out of that.

 

[Probedude]

Your pictures do not show any magneto. All I see is a scratched up flywheel.

Can you post pics of the magneto? Have you tried to start it with NOTHING attached to the small wire off the magneto?

 

[wall gator]

IS THAT THE 2.5 H.P. MOTOR???

 

[Odonnellp24]

here ya go

 

[Odonnellp24]

IS THAT THE 2.5 H.P. MOTOR???

Yes it is

 

[wall gator]

LOOKS LIKE,TOO MUCH GAP BETWEEN COIL AND FLYWHEEL
FOLD BUSS. CARD IN HALF,THAT WILL GET YA CLOSE.....

 

[Odonnellp24]

LOOKS LIKE,TOO MUCH GAP BETWEEN COIL AND FLYWHEEL
FOLD BUSS. CARD IN HALF,THAT WILL GET YA CLOSE.....

Sure I can find one laying around somewhere, thanks

 

[wall gator]

i replaced the spark plug because i narrowed everything down to that but it still won't turn over. Maybe the old magneto off the tecumseh will work. If not then i'll just use it to tear down and show my son how engines work...i'm sure he will get a kick out of that.

what ? The motor won't turn over????? Remove spark plug....pull starter cord,until tenshun.now pull! If motor froze....stop!!!!

 

[B man]

he means it won't fire.

 

[Probedude]

See if you get a spark with nothing attached to that 1/4" terminal on the magneto while cranking

 

[Odonnellp24]

See if you get a spark with nothing attached to that 1/4" terminal on the magneto while cranking

I'll give that a try when I get off this morning.

 

[Bluethunder3320]

im not a big fan of clones, (though i have a couple....) a honda coil would replace it.

in case you dont know, the HF greyhounds are known as clones, or chinese knockoffs of honda GX series engines.

all parts except head and valve cover are i believe, interchangeable.

EDIT: another thing to try is gap it to a credit card thickness.

 

[Odonnellp24]

im not a big fan of clones, (though i have a couple....) a honda coil would replace it.

in case you dont know, the HF greyhounds are known as clones, or chinese knockoffs of honda GX series engines.

all parts except head and valve cover are i believe, interchangeable.

EDIT: another thing to try is gap it to a credit card thickness.

I looked up a magneto for a gx120 and it mounted up completely different from the blue motor. Notice how mine has two bolt holes on one side while the Honda has one on each side. I'll try the credit card gap . I always thought as long as the magneto and flywheel magnet werent touching then closer was better. So much trouble for such a cheap motor, I guess it has become a matter of principle