GardenBanter.co.uk - View Single Post - SPARK PLUG or GASLINE PROBLEM ??? SEARS MOWER 6HP

06-05-2004, 01:02 AM

(HONG) wrote in news:42262141.0405050909.27d88a18
@posting.google.com:

Hi,

It was working very well, but after I replaced a new EZ START SPARK
PLUG REFRJ19LM bought at LOWES, and added 93# High Grade Gas, I can
not re-start it after I used it, in a word IT CAN NOT RE-START WHEN IT
IS HOT !!

But I can start it when the machine is COLD.

NEED HELP !!!!!!

HONG

In the duh category, are you sure the new plug is correct for your engine?

Just a wild guess, but it could be that a hot plug is not maintaining the
correct spark gap distance or it may be in tolerance, but because high
octane fuel is (I think) less volitile than lower octane fuel it's not
providing a sufficient spark. Try with regular grade gasoline.