F4 backfiring at idle
#1
F4 backfiring at idle
I have a 2000 f4 that backfires while idling at 1500rpm, and revs up hesitantly and very slowly up to 2000 rpm and smoothly but slower than it should from there. If I put the choke on to make it idle at 2000rpm, it doesn't backfire and will rev up smoothly, but not as quickly as it should. I just put in new plugs gapped to 35.
#2
#3
Before I changed the plugs it would barely start, only with very careful modulation of the throttle, a little starter fluid and full choke. It has been sitting for about a year, Prior to that it ran fine. When I changed the plugs I noticed the coil on #2 wasn't a snug fit, I couldn't feel it click into place like the others. So I had to pry out the little tab inside the coil to get a solid fit. Could it be that? 50k miles on bike, as far as I know carbs have never been cleaned or Sync'd.
#5
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