Just about to order a new set of NGK spark plug caps but at the moment, I have 3 x LB05F-R (90 degree elbows) on cylinders 1,2 &3 and 1 x YB05F-R (120 degree Elbow - short) on cylinder 4 that the previous owner fitted?
Should there be 2 x 90 degree ones on 1 and 4 and 2 x 120 degree (short) ones on 2 and 3?
Cheers

