Carb Adjustment 1998 C115 Yamaha

bigbrownbuku

Master Chief Petty Officer
Joined
Sep 17, 2004
Messages
885
Re: Carb Adjustment 1998 C115 Yamaha

launch your boat and idle in fwd. turn the screw in until the motor stumbles/runs poorly stop and back out 1/2-3/4 of a turn. repeat for other 3.<br />if i had to guess at a starting point i would say 1.5 turns out to start. this point is probably too rich but your motor will start easily and run. make sure the engine idles in fwd at around 650 rpm +/-
 

seahorse5

Rear Admiral
Joined
Jan 24, 2002
Messages
4,698
Re: Carb Adjustment 1998 C115 Yamaha

The Yamaha Tune Up Guide says 5/8 turn open
 
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