Its the AFM, i had exactly what Peter is describing and changing the AFM fixed it.
Its the AFM, i had exactly what Peter is describing and changing the AFM fixed it.
had this problem with mine last weekend, just dying, rev up to 3.5/4k RPM then mis fire like a bitch for a few seconds and then rev on up....
happened everytime i reved her!
lashed in a new set of plugs and she was perfect then.!
holy thread bump!!! im sorted these days!
sort of! its happens sometimes now, gona check sensor when ive another rb20 to test bits off near me!