|
Boating Talk For discussion of everything related to boats and motors |
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
Suzuki 225 4 stroke
|
#2
|
||||
|
||||
man I wished I could offer something.
If the compression is all good........ has to be something is the gear housing maybe?? Air filter? |
#3
|
||||
|
||||
I'm thinking it has to do with the computer.......sounds like its trying to save itself from something.....
Example. When its not getting oil it wont get over 500rpm.......if a sensor is missing something, the engine will adjust so it doesn't burn up.... |
#4
|
|||
|
|||
Has your actual boat speed slowed down??? It could be as simple as the rpm gauge not reading correct.
|
#5
|
|||
|
|||
Boat speed slowed about 4 mph also
|
#6
|
||||
|
||||
Throttle linkage may have slipped on adjustment.......Had a Mercury that did that. Check the throttle box & linkage on motor
|
#7
|
|||
|
|||
what do I look for?
|
#8
|
||||
|
||||
is it a linkage?
my Zuke is all electronic.......no mechanical throttle. I have to mention that on another site, it came down to the boat being waterlogged. |
#9
|
||||
|
||||
The throttle cable at the motor should attach to some type of linkage, there should be some type of adjustment there. Now whether or not you can tell if that adjusment has slipped or moved, wouldn't know without looking at it. "If" it has moved you may be able to tell where it originally was set.
|
#10
|
||||
|
||||
Fuel or ECM problem
This is something with your fuel delivery or your computer.
I doubt it's your linkage. Even in the case that it did slip, once you changed to a smaller pitch prop it should have picked up RPMs. Do you have a fuel/water seperator? If so, check around the top edge for any rust or small holes. Also, check your primer bulb for any cracking where you can lose suction in your fuel line. If you can't find anything in your fuel delivery, it's your computer. If it's telling your injectors to pump harder and run richer, or anything of that nature, that may be why you're losing RPMs. |
Bookmarks |
|
|