1988 OMC low RPM's

[VegasWaterRatt]

Hello, I am new to the forum and would like to see if I could get a little input on a problem I have with a 1988 Bayliner Capri 3.0 that I purchased last week. I took her out over the weekend and she ran ok except she wouldn't go over 3000RPM's. Any Ideas on a few things I could check out that could cause this.

Thanks.

 

[Bt Doctur]

Re: 1988 OMC low RPM's

Did you perform a "on water test" ?
Has the motor been tuned up?
Have the fuel filters been checked/replaced?
Is the prop pitch and dia. correct ?
Has a compression test been done ?
Had carb been verified to open fully with full throttle setting?

 

[VegasWaterRatt]

Re: 1988 OMC low RPM's

Nope.. haven't done any of that yet.. Just put it in the lake for the first time yesterday.. Thanks for the input. I will check/change some of these things this week and try again Saturday....

Thanks again for the information.

 

[fat fanny]

Re: 1988 OMC low RPM's

It would be advisable to go to the top of this forum and read all the information in the stickies section and download the manuals for your motor and outdrive and read and study all this info for troubleshooting and maintenance on your rig allot of free and usefull info that is pricless for such symptoms you are experiencing. Good luck! and post back the results of your work. clean check and tighten everything electrical, fuel delivery and mechanical after full tune up.

 

[Bondo]

Re: 1988 OMC low RPM's

Ayuh,... And make sure everything that's supposed to be full of oil,.. Is,...
And Grease whatever's Grease-able...

 

[VegasWaterRatt]

Re: 1988 OMC low RPM's

Thanks for all the great information... I will check out the stickie notes and make sure everything is full that should be full.....

 

[Lodgepole]

Re: 1988 OMC low RPM's

Something else not mentioned. I had a similar problem with a 3.0 and it turned out to be the exhaust flapper rotted off and hung in the drive exhaust passage.

 

[Don S]

Re: 1988 OMC low RPM's

In the Adults only sticky, read item #13. IT's a list of the possible causes. Hre is a guick link to it.

http://forums.iboats.com/showthread.php?t=295070

 

[fishinpa]

Re: 1988 OMC low RPM's

Also if the boat has been sitting for some time ,you may want to make sure excess water has not accumulated in bilge area or under floor and check for soaked foam under floor.

run the pump ,check that is is staying dry down there !



fish

 

[VegasWaterRatt]

Re: 1988 OMC low RPM's

I was ready someplace on the forum about a problem that if the clear tube running up to the top of the carb had water dripping out of it while the motor was running that was in indicator of something... but now of course I can't find that. Does this ring a bell to anyone?

 

[Bondo]

Re: 1988 OMC low RPM's

I was ready someplace on the forum about a problem that if the clear tube running up to the top of the carb had water dripping out of it while the motor was running that was in indicator of something...

Ayuh,... There's No way there should be Water in it,...
It's a sight tube for Gasoline,...
If there's Gasoline in it, the fuelpump diaphram has ruptured...

 

[VegasWaterRatt]

Re: 1988 OMC low RPM's

lol.... sorry, I ment to say it was fuel.. not sure where water came from.. Thanks for the help....

 

[VegasWaterRatt]

Re: 1988 OMC low RPM's

I set my timing the other day to specs... (it was WAY advanced) and she is running really good now... thanks for all the input and help.