[Prarie dog]

Was running good at high speed but kept on fouling plugs and didn't want to idle. Changed the jets from 440 to 420 and put new pilot jets 45. Now it won't even start. Anybody know what im doing wrong here.

 

[indyxc6]

Was running good at high speed but kept on fouling plugs and didn't want to idle. Changed the jets from 440 to 420 and put new pilot jets 45. Now it won't even start. Anybody know what im doing wrong here.

Possibly the needle and seat not controlling fuel in the float bowl and engine is flooding.
How are the spark plugs, wet or dry?

 

[Prarie dog]

They were dry when I checked them last time and I could only get it to run putting gas into the cylinder heads and then it would die out

 

[Prarie dog]

So I have discovered that it is losing spark after it warms up a bit. Any ideas as to what this could be?