Eman89so
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Outboard Motor Help
I have a 50hp Yamaha 4 stroke auto inject engine (1990)
When I was coming in from the lake yesterday I went to get on her and it over revved(tacked) itself and wouldn't go anywhere.. I could go in low speed but couldn't go any higher than about 10mph.. I tried to get on it again and it did the same thing. We checked the obvious things.. We ripped the lower unit apart thinking we might of broke that gear pin in there( not sure of the exact name) but everything looked fine. We trailored it and tried to move the prop out of the water but it was stiff.. I was told it had something to do with a clutch mechanism.. Does anyone else have any ideas? Its not fuel or oil anything of that nature.. Thanks a lot, Ed
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Skip16503
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Re:Outboard Motor Help
2013/06/23 19:03:26
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Sounds just like a spun prop to me
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ready2fish
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Re:Outboard Motor Help
2013/06/23 19:13:32
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Kistler Custom Rods Pro Staff GAMMA Fishing Lines Pro Staff
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treesparrow
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Re:Outboard Motor Help
2013/06/23 19:28:42
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I hate buying new props, and getting the new slip clutches pressed in costs just about as much. Ditto on the prognosis. Take your prop off you can usually see the rubber being ground- spalled out.
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Eman89so
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Re:Outboard Motor Help
2013/06/23 21:33:04
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I wouldn't be able to tell that its a spun prop by taking the prop off? Or by trying to turn the prop off the water? I put my foot on it and tried to turn the prop and couldn't get it to move.. What has to be done to check to see if that is the problem? Wish I knew more about the outboards.. defiantly learnining a lot by just having a boat for a few weeks
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Skip16503
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Re:Outboard Motor Help
2013/06/23 21:37:53
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Eman89so
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Re:Outboard Motor Help
2013/06/23 21:49:55
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Right on, so just buy a new prop? Or is there something else I need to buy
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Skip16503
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Re:Outboard Motor Help
2013/06/23 21:51:36
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Just get a new Prop I always take mine in when I need a new one to make sure it is right
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BloodyHand
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Re:Outboard Motor Help
2013/06/23 22:52:47
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same thing happened to my prop. I bought a new one so I could have it right away, also had them fix the broken one for about a third of the cost of the new one.
BH
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Eman89so
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Re:Outboard Motor Help
2013/06/23 22:56:02
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What does something like that run? Ive never done this before its all new to me.. Hundreds?
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bulldog1
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Re:Outboard Motor Help
2013/06/24 09:37:52
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Guessing your motor is a 2 stroke oil injected if it is a 1990. What size is it? You should be able to find numbers on it somewhere...
Curiosity killed the cat, but for awhile I was a suspect.
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Eman89so
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Re:Outboard Motor Help
2013/06/24 09:44:35
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I took the prop off and had it in my hands and my dad looked at it and said everything was fine.. I just called him and he said there is no doubt in his mind that it isn't the prop but im going to order one anyways and hope its the right fix..
BG, I get confused on the 2 and 4 stroke I thought mine was a 4 with the oil and gas mix.. It's a 50hp.. I can get some more specs once I get over there today.. Ed
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Eman89so
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Re:Outboard Motor Help
2013/06/24 09:47:53
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It's a 2 stroke,
There is no rubber in the prop.. It's all spline together solid..
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bulldog1
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Re:Outboard Motor Help
2013/06/24 09:49:40
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E, you won't be able to spin a spun prop with your hand or even with your foot and you can almost never tell by looking at them. If it is the original prop the rubber has probably deteriorated. I would get a new prop and get the old one fixed, I always carry a spare prop on board...
Curiosity killed the cat, but for awhile I was a suspect.
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woodnickle
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Re:Outboard Motor Help
2013/06/24 09:59:35
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A good way to check for a spun hub is to mark the bronze hub against the aluminum part of the propeller with a permanent marker, take the motor out for a "spin" and see if the marks still line up.
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bulldog1
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Re:Outboard Motor Help
2013/06/24 10:01:57
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LOL, we need to keep this prop discussion on one thread... 
Curiosity killed the cat, but for awhile I was a suspect.
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Eman89so
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Re:Outboard Motor Help
2013/06/24 12:36:05
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I'm going to order a new prop, lets keep the discussion onto this topic seeing its a motor topic and not fishing report  , Im hoping to soon enough save up and get a 90hp.. I absolutely loved it out on the lake we had a blast
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Eman89so
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Re:Outboard Motor Help
2013/06/24 15:36:37
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Can anyone recommend where I can buy a new prop at in SW Pa? I have called around nobody seems to deal with them locally
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Eman89so
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Re:Outboard Motor Help
2013/06/24 16:13:30
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$135 from Pymatuning Boat sales- NEW
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Eman89so
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Re:Outboard Motor Help
2013/06/24 16:49:51
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iboats.com ... 81$ sounds like that's her
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bulldog1
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Re:Outboard Motor Help
2013/06/24 17:04:51
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What size do you need, I'll check with my local guy might be able to get a buy for you...
Curiosity killed the cat, but for awhile I was a suspect.
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Eman89so
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Re:Outboard Motor Help
2013/06/24 17:11:37
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Doh, I just ordered from iboats for 87 shipped.. Should be here on Friday, still gonna be looking to get this other one replaced though, I do see that plastic in there now upon further investigation  What you could do BG is keep a looking for a 75 or 90hp.. I'm in the market.. gonna be selling this 50.. This motor is a beauty fires up first turn hopefully I can get a decent amount for it to put towards one that is alittle bigger to keep the girls happy for tubing 
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ready2fish
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Re:Outboard Motor Help
2013/06/24 18:37:08
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Do what Mika said.....mark the outside of the hub with a permanent marker, take the boat out and put some throttle to it to cause it to spin. Pull the boat out and check your mark.
Easy way to determine if it's the prop or if you have something else going on.
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KingKool
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Re:Outboard Motor Help
2013/06/24 21:27:28
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BOAT = Break Out Another Thousand
4 out of 3 people don't understand fractions.
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Eman89so
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Re:Outboard Motor Help
2013/06/24 21:31:50
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Eman89so
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Re:Outboard Motor Help
2013/06/25 15:37:09
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Just bought a Evinrude 70hp.. Picking it up from a guy on Thursday Night out by Kinzua. Pretty pumped up!!
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Eman89so
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Re:Outboard Motor Help
2013/06/25 15:40:44
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mr.crappie
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Re:Outboard Motor Help
2013/06/25 19:12:24
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What is a "spun prop" ? What causes it? thanks sam
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Eman89so
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Re:Outboard Motor Help
2013/06/25 19:55:54
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The evinrude was a scam.. the guy busted himself on a accident..Such as life
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BloodyHand
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Re:Outboard Motor Help
2013/06/25 20:13:49
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I'm no expert, but it goes something like this MC. The prop and the hub ( part that has the spline ) are 2 seperate pieces. They are then conected by a pressed in piece of rubber between the two. If I'm way off, please let me know.
BH
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