emptied fuel tank (results)

[hookset]

Did you clean the carbs?? As you know I am having similar issues! Attempt to take boat for a spin the other day showed similar problem! Ran great and I weaves trough the boats in shark river but when I went to throttle up in inlet I had no power!!!! Boat went from 2300 rpm to 3000 rpm with throttle wide open and only increased In Speed maybe 3 knots! Usually 3000 is about half throttle this it was full! Also noticed boat is running much lower rpm at ideal causing to to stall out!!

Mine is on her way home for me to give some long over due TLC and fix problem! If I can find it!!
Check you prop make sure you aren't spinning on hub! With boat off engage into gear and attempt to spin prop! (You should not be able to)

Keep this thread up to date with what you have done ill do same with mine maybe we can figure our problem out

[Bass_Appeal]

def not the prop ! cause it will get sudden burst and when it gets the burst it runs pretty fast then it will bog out down to a crawl again it also seems to run a little better with cover off ..i wondering if it is computer related ....

[hookset]

if it runs better with cover off i wonder if you aren't running hot!!! when you say running better do you mean normal, or still intermittent burst just further apart?

[Gerry Zagorski]

Year and make of engine please.

[Bass_Appeal]

96' merc 225 efi , injected

[Bass_Appeal]

engine is missing , all three left bank cylinders , pulled the plugs one at a time with engine running, no difference on any cylinder left port bank ....all are sparking but the sparks are shooting everywhere !! what can it be , a bad ground ? short? cdm ? im puzzled ! right starboard bank all made a change when pulling those wires one at a time !

[dfish28]

Coil base timer under the flywheel, or power pack possibly...?

Feeling a bit more close now- I wound up having to throw both in and viola...!

[Bass_Appeal]

Originally Posted by hookset

if it runs better with cover off i wonder if you aren't running hot!!! when you say running better do you mean normal, or still intermittent burst just further apart?

further apart.....but still intermittant seems i get a little more time if good running with cover off byt still bogs out