Hello

1st post here.

I have an old Rotor tiller (Masport Home Gardner)

It has what I believe is either a briggs 3hp or a tecumseh motor

It had been sitting awhile, diaphragm carb. I gave the rope a few yanks, feels good, motor has compression. No spark.

Ok, been awhile since I fooled with such a tiny motor, so I pulled the flywheel and checked the points...yuch. Cleaned them up and reset them. Put it all back together and tentative pulls with plug out provide Big fat blue spark. Success right? No. Put the plug back, shot of ether and she popped once...then nothing. No spark again.

repeated the above procedure, checked points again...reset and had a nice blue spark. Spark Plug back in, one POP and no spark again.


I think I am not in time. Question. I know if I Take the head off I can Find TDC with both valves closed and probably fix my issue. Is there a way to reset the points and know correctly where your piston is?

In other words, I pulled the points loose one night, and don't remember where it "originally was"

Help??

And why does it stop sparking if it is just a timing issue? Until I go back and redo the points again?

Thanks

did you check the flywheel key while your there? also sat a while? make sure the carb is rebuilt before you go further, that and oil changed, and i'd also go ahead and replace the point and condensor, they are pretty cheap. a 0.020 feeler gauge between the points and condensor i beleive. but i dunno if a kit will have one for doing it.