Guests - If You want access to member only forums on FM. You will gain access only when you Sign-in or Sign-Up on Fishing Minnesota.

It's easy - LOOK UPPER right menu.

Sign in to follow this  
Followers 0
radm

Lawn mower / spark plug

9 posts in this topic

Have a Honda lm. I started her up early spring & ran fine. Decided to replace the spark plug. Got identical plug, gaped it to .030 & now won't start. After numerous pulls & waiting a bit she did fire & run for about 10-20 sec. then died & wouldn't restart. Any ideas? Bad plug? Try different gaps? I'm stumped.

Share this post


Link to post
Share on other sites

Did it start this season before you switched plugs? If you haven't thrown the old plug put it back in and see if the problem stays. Clean out or replace the air filter as long as you are swapping a plug. New gas, a little sea foam, and a few more pulls might be an order. Report back with any developments.

Share this post


Link to post
Share on other sites

Yeah I thru the old plug out since several weeks elapsed between taking old one out & putting new one in. Did the gas & filter thing. That's what's driving me nuts - it started on 1st or 2nd pull with old plug in.!?

Share this post


Link to post
Share on other sites

Pull the plug ground it on the motor & see if it sparks.

Share this post


Link to post
Share on other sites

Not out of gas is it?

Share this post


Link to post
Share on other sites

Starting fluid- give it a shot it sometimes just needs that little exra after sitting and changing the plug. Try starting it with the air cleaner off and see if it runs/ thens stops when you put the cleaner back on.

Share this post


Link to post
Share on other sites

This may sound a little too simple and you may have already done it, but make sure the wire is firmly on the plug, they don't always seat real easily.

Share this post


Link to post
Share on other sites

Sounds more like a stuck carb float to me. If any of the above recomendations don't solve anything try tapping on the side of the carb with a wrench to see if that can free the float.

Share this post


Link to post
Share on other sites

Verify the plug you got is correct. Look it up in your owners manual and buy another one. Also check to see if the kill switch is engaged. Best test now is as mentioned to pull the plug out of the cylinder, keep it in the spark plug boot and tie a wire around the threads to a metal screw on the mower and pull the starter in a dark room and see if you see a blue spark.

Share this post


Link to post
Share on other sites
Guest
This topic is now closed to further replies.
Sign in to follow this  
Followers 0



  • Posts

    • RuddyDuck
      Let the cold begin! Though, now I am seeing snow in the forecast for Sat evening and Sunday. Boy, hopefully that misses. 
    • Xplorer
      With the high wind's this week I really dont see much ice forming until at least the weekend.  Looking like I will be planning on hauling the ATV or sled up for the trip between Xmas and New Years again this year.  
    • Xplorer
      I went and looked at a couple smaller 'early ice" lakes in the Cloquet area on sunday afternoon and there is nothing going on, and even tho the temps are gonna get colder, the wind this week will most likely not allow any of them to cap off til at least the weekend. Looking like its gonna be closer to Xmas before I'll be walking out for early ice this year (that's 6" for me LOL)
    • vanwalleye
      I asked my sales guys that question a couple weeks back, when I picked up mine and he told me 4-6 hrs, I'm guessing that can change depending on the temps and stuff
    • ZachD
      I am guessing he is using the vexilar edge or whatever the open water graph is called since he said he has fish alarm Personally I never use fish alarm or fish id on electronics   I am no expert either but here are some images that may help you