When i prime the bubble gas runs out of the carbs, so im sure they need rebuilding, but setting the adjusting screws is what im not sure about.<br /><br /><br /> thanks
recently purchased a yamaha 150 proV 1986 timing seems to be off. I havn't put it in the water yet is adjusting the timing simple or should I get a manual?
Basicly it's misfiring at above idle. At idle it seems to pur once I rais up the lever it misfires. I did change the spark plugs not a change in performance though.
You may be describing a lean sneeze, hook up a timing light to see what timing is. You may need a manual to see what timing is suppose to be and if it is mechanical or electronic controlled.
may need carb cleaning
