89 Johnson 110HP 2 stroke... Is this normal ?

[Jzx2sr]

Hey all,<br /><br />Finaly got my boat in the water monday <br /><br />I went for 3 trips on about 70 litres of gas and I was pretty much bone dry! The motor hadent been started in 3 years or so, just wondering if this is normal ?<br /><br />I was at 5400 rpms with a 13 pitch prop for a good 90% of the time.<br /><br />One of my buddies suggested a carb cleaner to mix in with my fuel, someone else said that it would take a few tanks of gas to get the motor working at peak.<br /><br />Any thoughts ? <br /><br />MUCH APPRECIATED!!<br /><br />

 

[OBJ]

Re: 89 Johnson 110HP 2 stroke... Is this normal ?

Don't know how much 70litres is or how far ya' went but I do know that the cross flows like their gas. I got an 86' 90 horse....so I know. Your best gas saving cruise range is between 35 and 4000 rpm. Mine is around 3600. After setting so long, a good carb cleaning and overhaul would also probably help. And a pump impeller wouldn't hurt either. I did help myself out a little by installing Boyesen reeds. These help on gas saving since they are a dual reed.

 

[CATransplant]

Re: 89 Johnson 110HP 2 stroke... Is this normal ?

Well, that's about 17 US gallons of fuel. It sounds like the engine's running OK, since you gave WOT RPM's and said you were running at high speed most of the time.<br /><br />Now, the question is: How long were you out, in total? I'll bet you're just seeing how lousy outboards are at fuel economy.<br /><br />As OBJ suggests, just pull the lever back a little. Go WOT to get up on plane, then back off a bit. Every engine has a sweet spot for high-speed cruising. You'll recognize it when you find it...the boat just seems happy there. The engine sounds relaxed...you're going plenty fast, and your wallet won't be suffering quite as much.

 

[Jzx2sr]

Re: 89 Johnson 110HP 2 stroke... Is this normal ?

Thanks for the replies!<br /><br />To answer your questions, I was at wot for just abit over an hour total. The rest of the time I was just trolling. <br /><br />I guess i'll have to keep the revs down and find that sweet spot <br /><br />I did already change the gear oil in the foot along with the impeller. The gage is reading about 10 - 13 psi at wot, dont know if it should be higher or not ?<br /><br /><br />Thanks again!

 

[MarkHPCA]

Re: 89 Johnson 110HP 2 stroke... Is this normal ?

Hi fellow Montrealer ! I have a 120 looper and at WOT I get about 2 hours on 70 ltrs. So you are right in the ball park. Where in Montreal do you boat? I go on Lac St Louis and Lac Deux Montain.

 

[Solittle]

Re: 89 Johnson 110HP 2 stroke... Is this normal ?

I have a pair of 1987s & get a reading of 18-20 psi on my 2 yr old water pumps - 4-7 psi at idle.