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Old 07-08-2019, 07:54 AM
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Originally Posted by TomZ View Post


Story of my life!!
Cheaper and more effective than a therapist
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Old 07-08-2019, 07:57 AM
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Originally Posted by speicher lane View Post
Cheaper and more effective than a therapist
Agreed! Best money Iíve spent!
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Old 07-08-2019, 11:45 AM
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Originally Posted by speicher lane View Post
By rights, the fuel tank should have been drained and system flushed (4-5 years little use).. dirty fuel only creates bad burn and detonation.... and headaches.

What condition is your ignition system in - plugs, caps and wires? they will rob you rpm on top of the weak fuel
the cap, plug and wires look good. Plugs overall good. I did check compression and a few cylinders were around 140....but nothing really wrong.

Once i I know the overall operation of the engine is good (from a sensor/wiring, etc i plan to power up the engine (this winter). Nothing worse than carrying a problem into a new build. I suspect any overall speed concern or gap will go away afterwards!
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Old 07-08-2019, 11:46 AM
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Originally Posted by Rookie View Post
Prop size? What did it usually run? This setup has performed properly in the past?
yep, nothing has changed from original..
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Old 07-08-2019, 11:48 AM
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Originally Posted by TomZ View Post
You really should get those injectors out and cleaned/replaced. The quickest way to burn down one of these MPI set-ups is running with clogged/bad injectors. Itís a fairly easy job to do.

Reach out to oso member BUP. He can help you out with the injectors.

cleaning the injectors sounds like a good thing to do.... especially since the boat is running better each time I run it.

who is BUP
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Old 07-08-2019, 11:49 AM
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Originally Posted by speicher lane View Post
for or some reason this link did not work...Iíll try later on my desktop
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Old 07-08-2019, 12:38 PM
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http://www.boatunlimited.com/
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Old 07-08-2019, 02:37 PM
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Originally Posted by speicher lane View Post
B.O.A.T = Bring out another thousand...starts the season for maintenance, then turns into the fuel bill
Those are 1970ís prices. Now itís B.O.A.T.T.
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Old 07-10-2019, 03:47 PM
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Originally Posted by TomZ View Post
You really should get those injectors out and cleaned/replaced. The quickest way to burn down one of these MPI set-ups is running with clogged/bad injectors. Itís a fairly easy job to do.

Reach out to oso member BUP. He can help you out with the injectors.
Do this ^^^^^^^ 10,000% correct. Dare you to ask me how I know haha. The fuel injectors in these Merc motors are horrible, especially when laid up for long periods. I have same motors and an injector that flowed 24% low roasted my piston and ruined my day and month. Engine even "felt" like it was running "good" too!
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Old 07-10-2019, 04:46 PM
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Thank you for the input..... Iíve decided Iíll just replace them. Any particular brand or outlet?
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