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#1
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That is a good point
__________________
 1994 Wellcraft V21 
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#2
04-08-2010, 09:59 AM
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Also the water pickup tube may not be lined up right. On my johnson there is a 2 foot copper tube that runs water up to the power head and mine was doing the same thing then I found out that I had missed the powerhead with the tube. Also, make sure the grommet at the top of the pickup tube doesn't get rolled as you put it in. I use dish soap to make it slide in easier.
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#3
04-13-2010, 12:29 PM
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I did a replacement impeller on a Yamaha 80 4-stroke. It went together real smooth but would not pump water. The dealer gave him the wrong impeller, it was the wrong diameter. No wonder it went together so easily. You never know.
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#4
04-13-2010, 04:27 PM
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You need a Doctor, Marine Doctor to be exact :) Here you go this may help
http://www.youtube.com/watch?v=Fj1c4oYpHAw Or a Nurse ? http://www.youtube.com/watch?v=n68sb...eature=related
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#5
05-04-2010, 08:47 PM
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water pump
When I first installed a WP on my Yamaha, it was pumping great,then went down to a trickle. I pulled the lower unit off ran down to show the Yamaha Tech and he said nothing was wrong. Reinstalled the lower unit, put on the ear muffs turned on the faucet, pumped good and started to loose presure again. Turned out my wife was doing a load of wash in the washing machine.
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#6
05-08-2010, 04:56 PM
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Hurrah! I fixed the overheat problem. Turns out a missing washer/grommet cut the water pump pressure. Water was getting through and out the tell-tale hole but wasnt getting up through the cooling jackets. Once i put it together with all the washers, it pee'd with like 4x the force and no overheat alarm. It was my first time doing the water pump and I assumed all washers are in the water pump replacement kit. Warning: They are not. When you drop the lower unit take note of the three washer/grommet/plastic cap set-up that makes the connection to the water intake pipe that the water pump will fit into. If this is missing when you re-install the lower unit (with new impeller) you may find that the motor will pee but you then get an overheat alarm after 5 mins of running. The missing parts i'm refering to are #13, 14 and 15 (see below) anyone of these missing and your pump will not get generate the proper pressure to cool the motor. Hopefully this helps
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