I've been noticing for the past few weeks that the throttle controls on my boat have been getting difficult to move. It seems that the difficulty in moving them is affecting the rate at which they move the speed control on the engine
. For example, when I push the throttle in a certain direction, I often need to push it down a significant part of the way before the speed of the boat increases from idle. And sometimes after I push it down a significant portion and get the speed up to say just 1000-1500 RPMs, suddenly the speed will increase rapidly to the RPM
level it should be at given that throttle setting. I'm attributing this to a throttle that's difficult to move and is correspondingly not performing correctly in moving the speed control on the engine
. I even tried to control the speed directly from the engine by attempting to push on the metal piece that is connected to the speed control and the throttle cable, but I wasn't able to do so.
My plan is to lubricate the throttle controls. I read about a way of doing this in Don Casey's "Complete Guide of Sailboat Maintenance
." The instructions were to disconnect the cable from the throttle side, fill a plastic bag with "lubricating oil
," put the end of the cable into the bag, and seal the opening by tying it with rubber bands. Then, the bag is supposed to be clipped to something so the oil
will slowly over maybe 12-24 hours drip down through the entire cable and lubricate it.
Does anyone have any experience doing this? If so, any suggestions on what I should use as lubricating oil? WD-40? Regular engine oil? Something else?
Many thanks in advance for any advice here.