Throttle a little sluggish to respond

[bkwapisz]

When I last had the cowl off, I noticed that there was a lot of play in the cam follower roller, which rides along the semi-circular cutout on the throttle lever and is what advances the spark control lever. Just seemed like a lot of play, so as I advance the throttle on the remote nothing happens instantly and I get the aforementioned play. I verified this by whatching what happens when I advance the throttle on the remote while watching the mechanism on the motor.

I'm wondering if anyone has any thoughts on what could be worn out, if anything? The roller is an off-white plastic roller and it physically looks ok, but after 21 yrs of operation I'm wondering if it's shrunk or maybe just wore a bit.

Motor is a 1990 Johnson GT100 Model J100STLESB. I found the diagram and part ID on shop.evinrude.com.

Thanks a bunch for any thoughts. Oh, and otherise the motor works fine, just needs a little more throttle action to get a reponse, both ways-- increasing and decreasing.

 

[clanton]

Re: Throttle a little sluggish to respond

The orignal roller was black. If the roller has a small lip at each end, you can slide a piece of clear plastic tubing over the roller. Tubing from ACE hardware. Very loose roller will cause the timing to move back and forth about 4 degrees. If the clear tubing does not work buy the new roller.

 

[5150abf]

Re: Throttle a little sluggish to respond

I have a 50 but on mine there are set screws that allow you to adjust the follower, you should be able to adjust the play out of that.

 

[bkwapisz]

Re: Throttle a little sluggish to respond

The orignal roller was black. If the roller has a small lip at each end, you can slide a piece of clear plastic tubing over the roller. Tubing from ACE hardware. Very loose roller will cause the timing to move back and forth about 4 degrees. If the clear tubing does not work buy the new roller.

The one that's on there now is white (used to be, kinda yellow now) and has a groove worn in it a little. I took it off and turned it around but there's still a bit of play in it. A new one is only a couple dollars I might just put a new one on there.