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| Author |
Message |
    
Mark Foster
New member
Username: fmosc2cwo
Post Number: 1
Registered: 04-2008
| | Posted on Monday, April 21, 2008 - 09:31 pm: | 
|
Guys,
New to the board but looking for some help, have posted this at the BBC board but didn't get any answers so hopefully someone here can help. My power tilt/trim works perfect all the time except when on plane at WOT. I usually have the motor trimmed all the way down for the hole shot and once on plane then trim up to get the best top speed/performance the problem is I have to back way of the throttle to trim the engine up. If I press the trim switch (on the throttle) at WOT the motor misses/hesitates and it will not come up but if I back off the throttle to about 3K rpm's then she comes right up and then I can get back in to it. Dont have a trim gauge I just eyeball the motor and can pretty much gauge when its right to get best performance. By the way the boat is a 2000 Procraft 175. Any suggestions? I have bought a new cranking battery, checked for any loose wires or grounds and everything is good. Is there some sort of safety on the motor that prevents me from trimming at WOT or do you think I have a sensor bad? Any help would be appreciated trying to avoid taking it somewheres for something minor that I can fix, without the high mechanic costs. |
Louis Lee Roeder
Member
Username: roederll
Post Number: 12
Registered: 04-2008
| | Posted on Wednesday, April 23, 2008 - 09:17 am: |
|
It may a safety feature or something. May have to much strain on the motor brackets and or transom. I'm assuming you have a bass boat that will go pretty fast. I honestly don't know that much about it but thought it made be helpful. |
ikia
Visitor
| | Posted on Wednesday, April 23, 2008 - 11:16 am: |
|
You should be able to trim at full power.I think you need to look at / repair the trim motor.It may have dirt / worn brushes / or even water in it. |
James Kopecky
New member
Username: singleshot
Post Number: 1
Registered: 05-2008
| | Posted on Thursday, May 08, 2008 - 01:31 pm: |
|
This was taken from my service manual for the 125
In the up mode, as the piston rod (a) extends from the cylinder (w), the memory piston (t) clears or uncovers the pressure relief passage. Oil from the up cavity will enter this passage and, if required, causes the tilt relief
piston (s) to open the tilt pressure relief valve (r). This valve lowers the amount of pressure available to lift the outboard motor. With the engine in forward gear, and at high engine rpm, the oil pressure available
will not be able to overcome the propeller thrust, limiting the trim range to below the pressure relief orifice. When the engine rpm’s fall or if engine is not in forward gear, the oil pressure is available to extend the piston rod (a) up into the tilt range.
JK |
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