115 Johnson Weak Reverse

[PY]

I have a 80's model 115 Johnson with manual shifting. I have all the power I need in forward, but my reverse is weak. The engine shifts easly into reverse but will not reve (speed) up. <br />What should I look for? Does my shift or throttle linkage need adjusting?<br />I did a search the last few nights but did not find anyone with a similar problem. <br /><br />Thanks In advance.

 

[JB]

Re: 115 Johnson Weak Reverse

Howdy, PY.<br /><br />Look for an adjustable throttle block in Neutral and Reverse. It is there to prevent over-revving.<br /><br />Good luck, and welcome aboard.

 

[PY]

Re: 115 Johnson Weak Reverse

JB where would this block be located? Are you refering to a screw stop of some sort? <br /><br />Thanks in advance. I think I have stumbled on a great forum!

 

[OBJ]

Re: 115 Johnson Weak Reverse

How weak is weak PY? Won't get the revs you get in forward. But should be enough to pull the rig off a trailer. What kind of RPMs are you talking?

 

[PY]

Re: 115 Johnson Weak Reverse

Not many RPMs. It will bearly back up my boat! And if I have to back against any current or try and back off the beach it is nearly impossible.

 

[OBJ]

Re: 115 Johnson Weak Reverse

How far back will the control lever go in reverse? Problem may lie in the control box itself.

 

[PY]

Re: 115 Johnson Weak Reverse

The problem was in my shift control box. A plastic bushing of some sort was broken. I got it fixed for 48 bucks! I have not yet put it in the water but running on land I can tell the difference.

 

[BoatBuoy]

Re: 115 Johnson Weak Reverse

I wouldn't run it on land too much. It's hard on the prop, unless it's real sandy soil.

 

[PY]

Re: 115 Johnson Weak Reverse