First of all, this is the only place that would allow me to start a new topic, so I hope it is appropriate to post here.
I have a 1979 XS1100SF and I can not figure out what is causing my #1 spark plug to foul. I have done everything that I can possible think of to fix it.
My XS1100SF has pod filters and an open header exhaust. Cylinder #1 is the only plug that carbon fouls.
Below is a list of what I've done to the bike in an attempt to fix the carbon fouling.
Carb bank completely gone through and cleaned with original jets removed cleaned and reinstalled. When this did not work I installed new Mikuni pilot jets (#42.5) and new Mikuni Main Jets (#145). I also tried #142.5 Main Jets. When this didn't work I tried a completely different carb bank (cleaned) from another 1979 XS11.
I've tried a different set of pistons/rings, a different cylinder (jug), a different cylinder head and cylinder head gasket. I've also tried a new set of ignition coils. I'm using the correct spark plugs (NGK BP6ES) gapped to spec.
So what in the world am I missing here??
Thank you in advance.
I have a 1979 XS1100SF and I can not figure out what is causing my #1 spark plug to foul. I have done everything that I can possible think of to fix it.
My XS1100SF has pod filters and an open header exhaust. Cylinder #1 is the only plug that carbon fouls.
Below is a list of what I've done to the bike in an attempt to fix the carbon fouling.
Carb bank completely gone through and cleaned with original jets removed cleaned and reinstalled. When this did not work I installed new Mikuni pilot jets (#42.5) and new Mikuni Main Jets (#145). I also tried #142.5 Main Jets. When this didn't work I tried a completely different carb bank (cleaned) from another 1979 XS11.
I've tried a different set of pistons/rings, a different cylinder (jug), a different cylinder head and cylinder head gasket. I've also tried a new set of ignition coils. I'm using the correct spark plugs (NGK BP6ES) gapped to spec.
So what in the world am I missing here??
Thank you in advance.
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