SPL performance gains?

[bidlimit]

Hi. I was putting the engine on the boat today from storage and checking it out. After I hooked up the control I noticed that the throttle butterfly does not open all of the way, more like 1/2 of the way. I checked the OMC service manual and they say it should be all the way open. Could this mean the difference in HP? I always thought the "28" was just a number they put on it to indicate it was the stripped down model. Any ideas?

 

[Hooty]

Re: SPL performance gains?

Yes, the butterfly should open 100%. If you're applying throttle from the remote control, I'd check the throttle cable for out-of-adjustment.<br /><br />c/6<br />Hooty

 

[bidlimit]

Re: SPL performance gains?

Yeah, I think it needs to be adjusted because when I actuate the lever by hand the belcrank hits the stop on the block. So its not a control problem. Sounds good, its an easy adjustment.

 

[Hooty]

Re: SPL performance gains?

Zuper.<br /><br />c/6<br />Hooty

 

[DHPMARINE]

Re: SPL performance gains?

Is the motor in forward gear when you do this butterfly check?<br />DHP

 

[bidlimit]

Re: SPL performance gains?

Yeah, I think it needs to be adjusted because when I actuate the lever by hand the belcrank hits the stop on the block. So its not a control problem. Sounds good, its an easy adjustment.

 

[bidlimit]

Re: SPL performance gains?

Yeah, its in forward gear.