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It was running until I hit the kill switch ... how would the main jet be clogged ? Just tried starting again .... after cooling for about an hour, started 1st pull.

Thanks for the video ... my carb looked as clean as the one he worked on. Put it back together and it started 2nd pull. Had put the bagger on and bagged some leaves for about 10 minutes. Stopped it to empty the bag and it would not re-start. Seems I'm back to the original problem.

Finally got back to mower and removing the carb. Wire will easily go through hole within center of carb. Wire will easily go through the side hole shown in image below It will not go through the top hole to meet the side hole in image below

The smoke did not come when starting as it occasionally does from muffler or exhaust. Came from top of the motor. I removed the plastic cover as quick as I could but could not spot exactly where it came from. And that only happened the first time I ran it today. I will look into the...

Never meant any disrespect to you. Your choice to leave this thread ... can only thank you for the advice given.

geez Rivets ... just asking a simple question. Smoke coming out the top of the motor seemed kinda relevant to me ... guess not.

Did you see post #50 ... as you made no remark about the smoke coming out of engine ?

UPDATE : 1 hour 45 min later 2nd pull it started .... let it run for 15 sec and I shut it down ... did not see smoke Tried to start it again ... 3 pulls and nothing

Nov 10, 2023 7 pulls ... no hint of starting. Pulled plug, seemed dry. Purchased a carb cleaner spray. Removed air filter and gave a good spray. Almost started 1st pull but started 2nd pull. Let it run approx 1 minute and I shut it down. Quickly noticed smoke coming from engine towards top...

Installed coil using business card as mentioned. Everything in place except spark plug. Set spark plug against engine, held the kill switch bar in normal run position, and spark plug has immediate fire when pulling the cord. Installed spark plug and put a little gas in tank and gave 7 or 8...

Beings I had it apart and easy access now ... just wanted to know if I should try to clean it ... that's all. I've cleaned all other parts I've taken apart, so thought to check if I should clean piston / valves. Not jumping around are looking for something new to try. I got it ... with the...

With the images in post #33 .... should I try to clean the piston or valves some way ? If yes, please give ways to clean.

Thank you .... will put it back together.

Yes I did ... and #31 I asked if that would stop it from starting even though the spark plug had spark ... but got no reply to that question. Thanks

Haha .... your opinion on this issue is light years better than mine. At this point guess I'll put it back together and give it another try. The coil spacing was not equal ... would that have caused a starting problem ?

Now that you explained ... I must have the L-head engine. When I remove the cover where the spark plug is, I only see the piston and 2 valves ... nothing to adjust. ( images above ) I would be over my head if I have to go deeper into the engine. Thanks for reply.

Thanks for the reply Rivets .... maybe we can get it cleared up. I’ll be 70 yr old next month ... and beleive it or not, I got much better things to do than run around in circles on an internet lawn mower forum. Pull a fast one ... never. I’m relaying info and answering questions best I can...

Seems the valve cover gasket is in good shape and stayed intact. Sure does not look like some of the YT videos I've watched on adjusting valves. Not seeing how to make valve adjustments yet. The cover I took off is where the spark plug was ... is this the wrong spot ?

Would the spacing condition of the coil now stop the mower from starting ? The spark plug against engine did have spark. Thanks for reply

Got back to mower and was going to remove coil as it seems it has to come off to get to valves. While taking pictures to help me remember where stuff goes ... wanted to check spacing to flywheel. Have no guages but will get some. Used photo paper which has a little thickness .... and the 2...

A little gas in carb has made no difference. Gave it 8 pulls, always started with 2 or 3 pulls. I'll continue taking it a part.

Thanks .... will try tomorrow

I don't know what you mean by "shoot in gas or carb cleaner " ... where ... how

Spark plug was not in housing, was sitting on engine so I could see if it would spark. Had stopped running about 3 weeks ago ... while I was cutting ( plenty gas ) and has not started since. So if it's not the coil, I'll have to re-visit the post where members suspected the valves, early on in...

Connected kill wire back to coil ... pulled cord and no spark. Held down switch arm as my normal starting procedure and had spark.

got good spark .... so in the last image i posted .... or the valves near the front ( spark plug side ) or do i need to get to valves from top

thanks .... will put back together and test

Was not sure how to check coil for spark but read article on checking resistance with meter.

Well cutting season about over ... and the JD died about 2 weeks ago. Will not start ... period. When this post started .... it would run .... but if I stopped it, it would not start until it cooled down. I'm ready to try and fix, if I can. It was mentioned my valves needed adjusting or maybe...

Thanks for the replies guys.

Live in south louisiana and cut grass 8 or 9 months out the year. I've always used 30w oil in all my mowers ... thought this to be the best and heaviest. Getting harder to find straight 30w now days. What would be the next best if I can no longer get 30w ?

Thanks for the reply Freddie21. Thanks for that info tomw0 ... your explanation makes sense to me. I took cover off and not sure if I want to try this with the cutting season starting. May have to wait, as this would take me quite awhile not being familiar with this. Did notice a little...

Thanks Mark ... looked at the video, pretty sure I can handle that. What I'm not sure of is the clearance values to use.

Engine info it that may help

Thanks for the reply ... but that is probably over my head. I've never taken an engine apart which I'm assuming I'd have to do to get to the valves. ... and if I got there I wouldn't know the intake valve from the exhaust valve or how to adjust. Thanks

Have a John Deere JS38 push mower. Purchased in 2012 and has worked great. Sometimes bag grass, and stop engine to empty clippings. Never had problems with it re-starting until end of last season. When I stop it to empty clippings, it will not start unless I leave it sit for approx 15 minutes...