"Ive got a 1988 Yamaha 9.9 4-s
"Ive got a 1988 Yamaha 9.9 4-stroke model # FT9.9ELG, that has what I think is a timing problem. The motor starts up great and idles perfect, but once you advance the throttle is surges fast like blup blup, blup blup, blup blup, blup blup. I hooked a timing light...