Yamaha 30 2 Stroke Outboard 2001

[pdebruynkops]

Since day 1 my new outboard sputters when going from low to high speed. The dealer doesn't seem to know what to do, its been in 3-4 times. Runs fine at low or after it at high speeds.<br /><br />Question:<br />1) what is the default mixture setting for the carb.<br />2) what should the timing be set to.<br />3) Any other suggestions or comments would be welcome.<br /><br />Thanks!<br /><br />Peter

 

[lonewolf5347]

Re: Yamaha 30 2 Stroke Outboard 2001

For some reason in the manual the low speed carb. adjustment screw are set up different on all three carbs.top carb 1/2 to 1 turn,middle carb 1 1/2 to 2 turn @ the bottom carb 1 1/4 to 1 3/4 turns.As far as timing you will need a manual there are three different of setting that has to be check they show pick up timing, idle full retard and full advance

 

[pdebruynkops]

Re: Yamaha 30 2 Stroke Outboard 2001

Thank you very much for the information, never would have got that right! Do you know what the low speed setting is...I think it's 0 degree's TDC?<br /><br />Thanks again for your help!

 

[browntroutking]

Re: Yamaha 30 2 Stroke Outboard 2001

I own a 91 model and it sounds like mine does exactly the same thing. I hate to touch anything though as it idles beautifully for backtrolling and runs smooth at full throttle.

 

[seahorse5]

Re: Yamaha 30 2 Stroke Outboard 2001

According to the 2001 Yamaha tune-up spec manual; the top carb is set to 3/4 turn, middle - 1 3/4 turns, and bottom at 1 turn.<br /><br />Idle timing is 5 ATDC and carb pickup timing is 2 ATDC and WOT timing is 25 BTDC.