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Author Topic: Sunk twin Yam 200s  (Read 2223 times)

September 08, 2012, 04:11:15 PM
Reply #30

mevince

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Re: Sunk twin Yam 200s
« Reply #30 on: September 08, 2012, 04:11:15 PM »
Weeell, I hate to break the bad news, but they are locked down. :cry:  Talk about taking the wind out of your sails! Instead of winning the lottery Im still coming out with a good deal so time to move on. Im seriously considering buying a sailboat. They last three powered boats Ive owned have had engine problems. Guess Im going to tear these down and have a look inside. It will be a learning experience. May just rebuild them myself. Anybody have a good set of wrenches for sale? Just kidding....I have plenty of tools just no outboard experience :scratch:

September 08, 2012, 04:27:13 PM
Reply #31

wingtime

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Re: Sunk twin Yam 200s
« Reply #31 on: September 08, 2012, 04:27:13 PM »
They are locked up?  can you turn the flywheel by hand at all?  Pull the spark plugs and spray some pb blaster in there.  The rust in the pics is probably from normal use not the sinking.  the corrosion on the wires could be from the sinking.  But even a wire harness for those things is not that expensive.  I'd try to put a bar on the flywheel and if they are locked solid or if the turn a bit. You can't make things worse..  put a breaker bar on there and break those things loose.
1998 Explorer w/ Etec 250


1987 170 w/ Evinrude 90

September 08, 2012, 04:37:28 PM
Reply #32

mevince

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Re: Sunk twin Yam 200s
« Reply #32 on: September 08, 2012, 04:37:28 PM »
I removed the plugs and put a rope on the flywheel. Im 230lbs and was pulling hard enough to lift the motors up. I was thinking of doing the pb blaster but fitz said it probably has got water in the lower carb and seized in places that are x rated for lil kids to look at. I may still do it thru the carbs and plugs. Whats the worst that could happen right?

September 08, 2012, 04:48:44 PM
Reply #33

wingtime

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Re: Sunk twin Yam 200s
« Reply #33 on: September 08, 2012, 04:48:44 PM »
you can try squirting some diesel fuel mixed with ATF in the carbs and into the cylinders too and let it soak for a day.  The rings are probably just stuck.  You need a big ass breaker bar on the flywheel to bust it loose.
1998 Explorer w/ Etec 250


1987 170 w/ Evinrude 90

September 08, 2012, 05:54:53 PM
Reply #34

fitz73222

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Re: Sunk twin Yam 200s
« Reply #34 on: September 08, 2012, 05:54:53 PM »
Wing,

It's been sitting since May like this! Even if you could break them loose they are going to blow. I recommended a tear down and exploratory look at what is going on and see the extent of the damage and make a decision on a rebuild or part out and replace them.
1973 Aquasport 22-2, twin 115 Mercs
2000 Baycraft 175 flats boat, 60 Bigfoot Merc
1968 Boston Whaler 13, 25 Yamaha (project)
1966 Orlando Clipper 13, 9.9 Merc

September 08, 2012, 09:38:21 PM
Reply #35

gran398

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Re: Sunk twin Yam 200s
« Reply #35 on: September 08, 2012, 09:38:21 PM »
Take a look at those Yammie's from Bob's customer viewtopic.php?p=82647#p82647

OBO is pretty open-ended, as Bob suggests.

You could put $2500-3K per motor on a rebuild....yet still have the stigma of engines that were formerly sunk. The powerheads weren't sunk, but in a small town, perception is reality....they were sunk. Selling them down the road will be  difficult. Forget getting your rebuild money out of them. Just selling them at any price will be rough.

Or you can part them out....350 each min. for the lower units, 200 each for the hoods (they're clean) blocks, starters, tilt and trim etc., etc...may end up 2K or more for the pair, piecemeal.

At that point you're in the boat and trailer for free.

The 5 to 6K you saved on two rebuilds....plus the 2K in your pocket from the sale of the old ones...you'll  have some cash in hand (theoretically) to go shopping. Twin 150-175's are all you need. Twin 200's are deluxe.

If they're indeed toast...think it through.

  G'luck :thumright:

September 08, 2012, 10:05:45 PM
Reply #36

seabob4

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Re: Sunk twin Yam 200s
« Reply #36 on: September 08, 2012, 10:05:45 PM »
I tell you what, Vince.  You offer $7.5K for the HPDIs (remember, all rigging including BRAND NEW 704 twin binnacle), he'll take it.  I have diagnostic reports if you want.  New impellers, new VST filters and gaskets, new intermediate and primary filters.  The oil tanks have the Artec Stainless mounting brackets...

Yeah, I make a bit of money on the deal.  Obviously, the higher the selling price, the more I make.  Just sayin'...


Corner of 520 and A1A...

September 09, 2012, 12:19:26 PM
Reply #37

seabob4

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Re: Sunk twin Yam 200s
« Reply #37 on: September 09, 2012, 12:19:26 PM »
Vince,
Apparently you've discovered some further issues with the GW, particularly transom delam and some soft areas in the sole.  Understand, GWs of that vintage were all wood (just as pretty much every other boat out there was!), so, even without the sinking, there were probably coring issues before.

If you're not bashful about poking some holes in her, I would drill a number of 1/4" "exploratory" holes, in the transom where the engines mount, at the bases of the stringers and b/heads where you can reach.  If the transom is delammed throughout, you'll be able to feel the "gaps" as you drill.  You'll also be able to inspect the wood shavings when you back out the drill.  Dry and looks like wood...good.  Black and stinks like chit?  Not good.  Same with the stringers and b/heads.

As far as the soft spot (or spots), do the same, working away from the soft areas.  Hopefully you'll get to a point away from the soft area where you have good solid wood, then you know the extent of the repair.  Obviously, you have to work in all directions in order to isolate the rotted area to a degree of certainty...

Yeah, you're gonna have a bunch of small holes to fill and repair, but, you're gonna have some pretty big repairs anyway, right?


Corner of 520 and A1A...

September 09, 2012, 12:34:22 PM
Reply #38

wingtime

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Re: Sunk twin Yam 200s
« Reply #38 on: September 09, 2012, 12:34:22 PM »
I didn't know they had been sitting that long.  That's a different story.
1998 Explorer w/ Etec 250


1987 170 w/ Evinrude 90

September 09, 2012, 09:52:29 PM
Reply #39

mevince

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Re: Sunk twin Yam 200s
« Reply #39 on: September 09, 2012, 09:52:29 PM »
Bob I will def do as you suggested. I was looking for a cc project to have ready for next season so the work is welcomed. The twins if able to get running would have been a bonus. The flatback I sold Scott had a lot of mystery but not a lot of usable equip. CC, controls, etc. The SeaCraft looked had all the equip for a restore but turned to be too small. So now the GW. Would love to have the twins you posted but Im not ready to repower right now. Guess the 94s got me excited & out of focus. Ive bought a truck & three boats in less than 2mons. Ive gotta move some stuff before I look for more twins. Know anyone looking for a set of parts Yammies Im gonna sell these. 1994 200TXRS & L200TXRS.

 

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