I have rebuilt the fuel pump and carb. The plug in the front cylinder comes out normal while the rear cylinder spark plug's porcelain is white as snow. We ran it with the hose connected to it and removed the rear spark plug cap and it ran the same but when we put the rear back on and removed the front one it shut off. We cleaned the fuel lines what could it possibly be? Any help will be much appreciated!
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1997 xp running on one cylinder?
- Thread starter ssmith414
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stang69
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Bad Plug?
Just from experience last year after rebuilding the 717 in her 97 GTS. I put new plugs in and found It was only running on one cylinder. After testing for fuel and spark my wife calmly told me to try the spark plugs. Of course my reply was that they were new plugs but after another hour or so of trouble shooting I figured what the hell I'll try the old plugs. Started up and ran perfectly. Changed back to the new plugs one at a time and found that one of the new plugs was dead.
First see if you are getting spark at the spark plug end of the each coil wire with out the plugs attached, then try with each plug attached. (Note: these are not a brilliant white spark, it is very faint) If you are getting spark through both plugs, take a shoptowel and put one end (1/2 inch or so)of it in the non-firing cylinder plug hole and turn it over a few times. Pull the shop towel and see if you can smell gas. If not you may have a restriction in the fuel transfer hose to that carb or the small filter screen behind the diaphram may be plug or obstructed. Good Luck
Just from experience last year after rebuilding the 717 in her 97 GTS. I put new plugs in and found It was only running on one cylinder. After testing for fuel and spark my wife calmly told me to try the spark plugs. Of course my reply was that they were new plugs but after another hour or so of trouble shooting I figured what the hell I'll try the old plugs. Started up and ran perfectly. Changed back to the new plugs one at a time and found that one of the new plugs was dead.
First see if you are getting spark at the spark plug end of the each coil wire with out the plugs attached, then try with each plug attached. (Note: these are not a brilliant white spark, it is very faint) If you are getting spark through both plugs, take a shoptowel and put one end (1/2 inch or so)of it in the non-firing cylinder plug hole and turn it over a few times. Pull the shop towel and see if you can smell gas. If not you may have a restriction in the fuel transfer hose to that carb or the small filter screen behind the diaphram may be plug or obstructed. Good Luck
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