| Author |
Message |
    
gordon mcdonald
Advanced Member
Username: sticky
Post Number: 135
Registered: 10-2008
| | Posted on Saturday, November 14, 2009 - 05:20 pm: | 
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82 25hp slow speed fine,more throttle slips,let off and grabs,clutch dog or prop,thanx |
Timothy Befera
Member
Username: guido2
Post Number: 99
Registered: 07-2009
| | Posted on Saturday, November 14, 2009 - 05:30 pm: |
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Sounds like prop.....I check them in the bench vise. They will slip fairly easy by hand. |
gordon mcdonald
Advanced Member
Username: sticky
Post Number: 136
Registered: 10-2008
| | Posted on Saturday, November 14, 2009 - 05:46 pm: |
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i put it in gear locked the flywheel,and tried to spin prop would not budge |
IBNFISHN
Advanced Member
Username: ibnfshn
Post Number: 709
Registered: 11-2005
| | Posted on Saturday, November 14, 2009 - 09:06 pm: |
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That is not a reliable test. Put adjacent marks on the inner and outer hub then try it again. If you ha a spun hub the marks will no longer be lined up. |
jamie campbell
Advanced Member
Username: outboard_doctor
Post Number: 750
Registered: 02-2009
| | Posted on Sunday, November 15, 2009 - 02:19 pm: |
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Probely a prop if it were the dog clutch it would jump in and out of gear with a thud |
gordon mcdonald
Advanced Member
Username: sticky
Post Number: 137
Registered: 10-2008
| | Posted on Monday, November 16, 2009 - 05:10 am: |
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well if im running say 1500-1800 rpm it slips like its going in and out of gear,no thud,if i give it more throttle it will just slip till i let off,then it will grab,but if i just run say 1000 rpm i can put around all day,i have a new prop,il try next wknd, |
jasper dog
Member
Username: jasper60103
Post Number: 11
Registered: 09-2008
| | Posted on Monday, November 16, 2009 - 09:27 am: |
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Check your trim setting too. I have the same motor ('81 25hp) and experienced some slippage because it wasn't trimmed right. |
gordon mcdonald
Advanced Member
Username: sticky
Post Number: 138
Registered: 10-2008
| | Posted on Monday, November 16, 2009 - 04:43 pm: |
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what hole should rod be in for trim |
Martin Johnson
Member
Username: martino1
Post Number: 40
Registered: 05-2009
| | Posted on Tuesday, November 17, 2009 - 06:39 am: |
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The "correct one" for your boat, motor, typical load, and typical conditions. Factory manual will tell you how to figure all of that. |
carl spillman
Advanced Member
Username: papyson
Post Number: 290
Registered: 09-2006
| | Posted on Wednesday, November 18, 2009 - 05:51 am: |
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start with the 2nd hole from the bottom....idealy you want to trim a motor til it starts to porpoise and then back off..the ideal position is hard to get without power trim....the other extreme is the boat digging in with the bow...this will cause a bunch of problems...cavitation being the most damaging..be alert for the rpm jumping drastictly .... |
jasper dog
Member
Username: jasper60103
Post Number: 12
Registered: 09-2008
| | Posted on Wednesday, November 18, 2009 - 01:46 pm: |
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what hole should rod be in for trim
FYI. The '81 25hp manual says 2nd hole away from the transom is typical for most setups. |
jamie campbell
Advanced Member
Username: outboard_doctor
Post Number: 752
Registered: 02-2009
| | Posted on Wednesday, November 18, 2009 - 03:52 pm: |
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The cavitation plate should be parrell with the hull, if its trimmed in the nose will be down or trimmed out to far the nose will lift too high |
