merc 120 too fast at creeper speed

[melvind1]

Just got a see sprite with a mercuiser 120 runs great and boat is in tip top shape. Only problem is that at docking speeds it just doesn't go slow enough and I have to put it in and out of forward and reverse to control it and it really slams into gear then moves pretty fast. Any tips on how to adjust the idle down...it does this at the beginning and end of voyages.

 

[achris]

Re: merc 120 too fast at creeper speed

Idle speed should be 650-700 rpm,in forward gear, in the water. If it's higher than that, just turn the idle speed screw, just like you would on a carburetorred car engine....

Chris.....

 

[melvind1]

Re: merc 120 too fast at creeper speed

Thank you.... I am guessing very small turns to the left to reduce speed and to the right to increase speed.

 

[achris]

Re: merc 120 too fast at creeper speed

Thank you.... I am guessing very small turns to the left to reduce speed and to the right to increase speed.

Yep...

 

[Bondo]

Re: merc 120 too fast at creeper speed

Just got a see sprite with a mercuiser 120 runs great and boat is in tip top shape. Only problem is that at docking speeds it just doesn't go slow enough and I have to put it in and out of forward and reverse to control it and it really slams into gear then moves pretty fast. Any tips on how to adjust the idle down...it does this at the beginning and end of voyages.

Ayuh,..... Welcome Aboard,..... What are the idle rpms,..??

The idle is adjusted at the carb's idle adjustin' screw,...

 

[melvind1]

Re: merc 120 too fast at creeper speed

I will double check the idle speed today. Any other items that could cause that..ie... Cable adjustments etc? Thanks very much for the responses. And yes,I realize I misspelled sea in my original post....

 

[achris]

Re: merc 120 too fast at creeper speed

If the cable is out of adjustment, just remove the nut holding the brass (sometimes plastic :facepalm barrel on the bracket and wind it in or out so it doesn't pull the throttle open.... Do the idle speed adjustment with the cable disconnected, then adjust the cable and refit.... Once you see it you'll understand...

Chris......
BTW, don't care what boat your engine is in, the most useful information you can provide is the engine serial number.

 

[melvind1]

Re: merc 120 too fast at creeper speed

Thanks again.rain yesterday so didn't make it to the marina.

 

[bonzoscott]

Re: merc 120 too fast at creeper speed

If you're new to boating, and your idle is normal, it does sometimes take a little shifting and maneuvering when docking.

 

[Grub54891]

Re: merc 120 too fast at creeper speed

Just don't do this!