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Making a long shaft from a short
Northern Exposure
#1 Print Post
Posted on 06/06/11 - 12:21 PM
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Anyone ever tried adding an extension kit to a short shaft motor. Is that a good sound way go? I've been looking for a long shaft kicker but am having trouble locating an 8hp or so. There are TONS of short shafts though. I wondered if it would make sense to buy a short one and a kit to convert it. I have not seen firm prices on the kits but I think I saw a website that specializes in them and it was around $150-175. So - if I could buy the ss motor right ?????

 
dreilly
#2 Print Post
Posted on 06/06/11 - 12:27 PM
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I added one to my 150. The Yamaha V-Max motors are short shafts and I needed a long shaft. It works fine and has the standard warranty. The dealer ordered it directly from Yamaha.

 
Gamalot
#3 Print Post
Posted on 06/06/11 - 4:06 PM
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I think the only difference is a longer shaft and a spacer. There are tons of older OMC (Evinrude/Johnson) 6 -9.9HP motors out here in either length. Many of these motors are pretty much bullet proof and with some very basic maintenance they tend to run forever.
I have an early 1970s 6 HP SS and a mid 1970s 15 HP LS sitting in my shed and I can't kill either one of them. The difference in weight is a non issue and I doubt more than 20 pounds.

Many of the parts are interchangeable if the model years and HP are close. You could buy a SS in great condition and a LS with a blown power head for a song and do a switch- A - roo.


 
Northern Exposure
#4 Print Post
Posted on 06/07/11 - 5:15 AM
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Hey, good idea gamalot - I will look around for a dead LS and a good SS.
There have been a few good LS on ebay but they usually are local pickup only and way across the country. The ones nearby always seem to end up SS models.
By the way - for anyone looking - make sure you verify the length before you buy/or travel. I had three different deals started and was kind of excited but when I got model numbers or had the people measure the shaft it turned out that they were just guessing that they had LS and they were actually short.

 
Binkie
#5 Print Post
Posted on 06/07/11 - 10:12 AM
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If you have an OMC motor, that uses a 5 " spacer to make a long shaft. you then need the spacer a long shaft driveshaft, a long shaft shift rod and you need to solder a 5 " copper extension to the water tube. Simple to do, I went the other way with my '61 Evinrude Starflite 75hp. I removed the spacer had the driveshaft sectioned 5" by a machine shop cut the water tube 5"s and installed a short shaft shift shaft. By the way all the parts you need are available from your Evinrude dealer.

 
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