Myself
manic mechanic
- Location
- Twin Lakes AR
I put an SBN44 on a '90 model 550. The ski is otherwise bone stock. I put in a 100 pilot and 120 main jet. Popoff is at 20psi. The ski seems to run out just fine but is pretty hard to start. Seems like you have to give it partial choke and crack the throttle while cranking and it will finally start blubbering and run. Should I increase the pilot jet? Maybe increase the popoff because of the stock flame arrestor?