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_daynzy
12-29-2008, 01:20 PM
1997 indy 440 l/c


after about 15 minutes of running it seems like you lose a cylinder.. the idle drops toa bout 800 rpm from 2000, and if you pin it, it'll only rev to about 4000-4500rpm and odesn't move at all.


if you change the spark plugs, it'll run great for about 10 minutes then the same problem.


overheating?


what could cause this?

we tried running a colder plug, but still the same thing

Barry Morris
12-29-2008, 01:54 PM
If I had an 11 year old sled in reasonable shape, I'd just go get a set of jugs and pistons and put them in. No guess work, and not a waste of bucks, just maintanence. Get it tuned up too.
End of problem, and more years of use.