75 115hp running problems

firstboat25

Petty Officer 3rd Class
Joined
Sep 2, 2005
Messages
98
Hi guys <br /> <br /> Not sure where to go on this so here it is <br /> I have rebuilt the carbs, replaced the power pack and coils and changed the plugs so I took the boat out. To begin with engine does not like low idle she will miss and backfire so I rasied the cable adjustment to max so it doesnt do that <br /> when I put her in gear she will go forward as soon as I give her more throttle she stalls the only way to get past that throttle up stage is to give shot of mixture into carbs they she will go and run, if I drop down to low speed she will throttle back up fine if I stop and the throttle up needs the gas again <br /> Am I lookin and a linkage problem ? I can reve it up when in neutral by hand opening the butterflies if I put her in gear have my friend give throttle and open butterflies she will throttle up fine<br /> Please help its getting cold here in Ny wanted to have this fixed before its to late <br />Thanks
 

Sherman

Petty Officer 2nd Class
Joined
Apr 19, 2003
Messages
173
Re: 75 115hp running problems

Check to make sure the butterflies are opening as soon as you move the throttle off idle. You may have a problem with the cable. If you have the manual do a link and sync.
 

firstboat25

Petty Officer 3rd Class
Joined
Sep 2, 2005
Messages
98
Re: 75 115hp running problems

the cable is brand new could it be adjusted wrong
 

MCM

Lieutenant Junior Grade
Joined
Jun 1, 2005
Messages
1,201
Re: 75 115hp running problems

Absolutely, the manual will explain how to adjust it as well as the link & sync.<br /><br />If you don't have a manual there are some old posts on link & sync, initial carb settings/adjustments etc.<br /><br />Mike :)
 

firstboat25

Petty Officer 3rd Class
Joined
Sep 2, 2005
Messages
98
Re: 75 115hp running problems

Thanks mike <br />I do have the manual I will check it out <br />Just tired of this problem
 

MCM

Lieutenant Junior Grade
Joined
Jun 1, 2005
Messages
1,201
Re: 75 115hp running problems

Boy do I know that feeling,<br />ya oughta see my post on '75 50hp ign. puzzle :) <br /><br />Good Luck,<br />Mike
 
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