Lawnmower

[r_chez_08]

My parents have a self drive lawnmower with a Honda 4.5hp gxv135 or something like that.
The lawnmower worked fine, until my brother used it, and apparently it just died and wouldn't start again.
I replaced the plug, oil, and cleaned the carb. The engine now runs, but when cold is kinda hard to start, and smokes a bit, and when warm needs choke to start. Finally, it seems to lack power when cutting the grass, as I tried it out on some average length grass, and it bogged down a little, and died a few times. Any ideas? Thanks

 

[mrfreyguy]

Have you tried adjusting the jets?

 

[solomon]

You need to do a plug chop and adjust the mixture. Make sure you don't have a vacuum leak at the intake gasket, sounds like you may be running lean hence needing the choke when warm. Do a plug chop though and you will know.

 

[r_chez_08]

It only runs choked now. I'm guessing a plug chop is when u look at the colour?

 

[solomon]

Yes, sounds like you are lean or have a vacuum leak at the intake.

 

[r_chez_08]

Why would that suddenly happen tho?

 

[Kaptain Krunch]

Definitely sounds like your running lean. As to why it would happen all of a sudden, absolutely no clue. Start it up and spray carb cleaner around all intake gaskets. If the engine revs up its got an intake leak.

 

[sideways]

Why would that suddenly happen tho?

Some crud in the fuel could do that, if you took the carb off then you'l of needed to replace the gasket, that'd be why it was running lean.

Hayden

 

[r_chez_08]

Thanks for the help guys. I fixed it, by replacing the fuel and giving the carby a blow through with a compressor.

 

[solomon]

Thats always good. Glad you fixed your problem.