jboutdoorguy
New member
Hi guys,
I have an 02 viper that I bought new with now 9,400 miles. Always used yamalube. Starting last year it would idle really high and high enough to engage the clutch. This year its the same thing and also some back firing. Over the years I have had to numerous times clean the pilot jets because of low/no idle and backfiring. I cleaned them now and when I was done thought I fixed the issue because it idled perfect afterward. When I cleaned up my tools after the job I noticed I left out one of the pilot jets. I took it back apart and put the jet back in and my lean/high idle came back. So..., If I give it choke the idle will come down but go right back up when I turn the choke off. If a pilot jet is out completely it idles perfect. Could a stuck power valve cause the high idle? I actually have never cleaned them. I dont notice a loss of high end power. Could it be just the throttle cable it out of adjustment? I dont think there is any leaking at the airbox. The carbs were pretty clean and the pilot jets were not clogged initially. The air screws are About 2 turns.
I have an 02 viper that I bought new with now 9,400 miles. Always used yamalube. Starting last year it would idle really high and high enough to engage the clutch. This year its the same thing and also some back firing. Over the years I have had to numerous times clean the pilot jets because of low/no idle and backfiring. I cleaned them now and when I was done thought I fixed the issue because it idled perfect afterward. When I cleaned up my tools after the job I noticed I left out one of the pilot jets. I took it back apart and put the jet back in and my lean/high idle came back. So..., If I give it choke the idle will come down but go right back up when I turn the choke off. If a pilot jet is out completely it idles perfect. Could a stuck power valve cause the high idle? I actually have never cleaned them. I dont notice a loss of high end power. Could it be just the throttle cable it out of adjustment? I dont think there is any leaking at the airbox. The carbs were pretty clean and the pilot jets were not clogged initially. The air screws are About 2 turns.