| Author |
Message |
    
john w orsted
New member
Username: jorsted
Post Number: 1
Registered: 07-2009
| | Posted on Monday, July 13, 2009 - 05:24 pm: | 
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my motor takes forever to get up on plain in fact i need someone to get in the front of the the boat to plain it out but once it plains it runs great anyone got any ideas}}}} |
charles harris
Advanced Member
Username: cehmass
Post Number: 584
Registered: 09-2007
| | Posted on Monday, July 13, 2009 - 07:03 pm: |
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have you tried different pitch props,is there any excess water(weight) in the unit? |
jwbmarine
Senior Member
Username: jwbmarine
Post Number: 4623
Registered: 11-2005
| | Posted on Monday, July 13, 2009 - 07:54 pm: |
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ck the compression,and spark....that,and the 78,is THE,..most overhauled eng i have ever been around....i highly doubt,that it has NOT ,been overhauled,however,..if the same pistons were used....she'll blow over and over! |
john w orsted
New member
Username: jorsted
Post Number: 2
Registered: 07-2009
| | Posted on Tuesday, July 14, 2009 - 01:57 pm: |
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i have not tried different props, I think the one on it now is a 13 1/4 x 17 the motor came off a cuddy cabin 19 foot i think and I put it on a 15 foot champion bass boat the prop is pretty chewed up and i need to replace it what size do you think i should try? what water are you refering to it has 2 7 gallon live wells |
john w orsted
New member
Username: jorsted
Post Number: 3
Registered: 07-2009
| | Posted on Tuesday, July 14, 2009 - 01:59 pm: |
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i will retest the compression and spark i think they are both good all electronics on motor are new bought it that way what should the compression be at? |
Doug Keister
Member
Username: doug_keister
Post Number: 11
Registered: 09-2008
| | Posted on Tuesday, July 14, 2009 - 03:38 pm: |
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John Open the Engine cover look around the bottom for excess oil and gas could have the same issue I am working on now? check the post for the 1995 90hp Johnson I will post the results in a couple days if it fixes the problem. |
charles harris
Advanced Member
Username: cehmass
Post Number: 588
Registered: 09-2007
| | Posted on Wednesday, July 15, 2009 - 07:11 pm: |
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water logged transom soaked into flotation material/excesss water in bilge etc,water in live well should have been designed for the unit ,for it to perform with that engine. |
Fred Baxter
Member
Username: fredbaxter
Post Number: 27
Registered: 02-2007
| | Posted on Wednesday, July 15, 2009 - 07:35 pm: |
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If the motor came off a cuddy cabin, is it possible that it is a 25" shaft? What size transom do you have on the 15'? I suspect that the bass boat has a 20" transom on it. You may be too deep in the water with this motor. |
john w orsted
Member
Username: jorsted
Post Number: 4
Registered: 07-2009
| | Posted on Thursday, July 16, 2009 - 06:23 am: |
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thank to everyone the motor has good compression in all cyl. there is no extra water weight i will have to check the shaft length tonight and excess gas and oil in the cowl hope to get it running good by sat. |
Doug Keister
Member
Username: doug_keister
Post Number: 14
Registered: 09-2008
| | Posted on Thursday, July 16, 2009 - 03:33 pm: |
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Check the archives on this site I think I seen another Motor with the same problem that ended up being dirty or damaged carbs. Might be same year model motor not sure been reading alot lately since I am still working on my issue also. |
Joe Reeves
Senior Member
Username: joereeves
Post Number: 7680
Registered: 02-2001
| | Posted on Thursday, July 16, 2009 - 03:37 pm: |
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If using a tachometer, what is the rpm reading when that engine finally gets to its top performance level? |
