yamaha hard starting

saintlee

Petty Officer 3rd Class
Joined
Apr 25, 2011
Messages
93
posting this for a friend
out today on his grady white twin 200 hp yamahas
1992 yamaha 200 txrq 2 stroke
i believe serial #s are 6g6ul761845 and 6k1ul704409

port engine runs well, starboard cranks and pops like a backfire
after sereral times it finally catches but runs rough at idle
once running and up on plane it runs well
if you shut down, same pattern happens again

my question is, can someone please direct me to service manuals
i plan on check/chang plugs--what gap
checking for water in fuel, but again, port engine starts and runs well
possibly adjusting carbs if i can
also checking timing--- plus anybody elses thoughts
thanks
 

larocca

Recruit
Joined
Mar 7, 2011
Messages
3
Re: yamaha hard starting

He must be a good friend if so take his boat out fishing so you run out the bad gas and then help him time it good luck fishing
 

99yam40

Fleet Admiral
Joined
Sep 7, 2008
Messages
9,127
Re: yamaha hard starting

the pop is lean sneeze
clean and adjust carbs properly
 
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