Recently purchased 2008 Spyder RS has poor idle and running issues up to 2000 rpm. Goes off on 1 cylinder sometimes, misfires randomly, blubbers, etc. Worse when cold. Runs well at higher rpm and has great power. It has a Two Bros. exhaust system that is too loud for my taste. I have heard that the exhaust system can cause changes in fuel mixture that affect engine performance. I have ordered a take off OEM exhaust system from eBay.. Is that likely to help?
2003 BMW F650CS
2008 Can Am Spyder RS