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#1
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no .. all owner knows is that it is an 89 mariner 150 25"
it seems that most people out there do not know what they are selling. i am finding it very common. i have had people give me the wrong year ... some off by as much as 10 years .. maybe that was on purpose  the only number i can find on the motor is very hard to read .. i think it reads 06139606 these numbers were on a tag that is sort of worn off. 
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#2
07-22-2008, 09:10 PM
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serial number is also on a freeze plug on the powerhead . . . also check the date on the starter (keep in mind some starters have been replaced). 92 (serial begins with "0D") was the first year of the 2.5L and 91 was the last of the 2.4L. 1988 and later 2.4L should have 1pc heads. Generally speaking the 150's were 2.0L except xr4, xr6, Mariner Magnum II/ III. 2pc top hat style heads (1983 - 1988) 135/150's will have a stamp 3 1/8 and 2.4L will have 3 3/8.
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#3
07-22-2008, 09:16 PM
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OC would be around 89 or 90.
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#4
07-22-2008, 09:22 PM
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92 and newer carbs will have a stamp on the side WMH carbs.
16's are 200hp carbs :) wmh - 12 and 13 are 2.0L motors wmh - 14, 15, 16's are 2.5L motors  Old style wh- carbs . . . the stamp is on the top . . . 1990 and earlier. wh-20 were the fastest . . . I have 2 sets off 2.4L v225's ;) wh-22's are the second best 200hp carbs. Diamond shaped heads are pre-83 motors . . . head bolts on the cylinder walls . . . no oil injection.
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#5
07-22-2008, 10:05 PM
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Quote:
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#7
07-24-2008, 07:04 PM
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There are more numbers on the carbs . . . the carbs on C's are funny. The numbers aren't next to the "wh-". I'm almost 100% sure it's a 2.0L . . . I don't think merc made a 2.4L 150 in 89 except for the XR4 which I think was only 88. I don't have my book here, but I'd bet you it's a 2.0L. Did you buy it?
Last edited by bigshrimpin; 07-24-2008 at 07:13 PM.
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#8
07-24-2008, 07:32 PM
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i am waiting to make an offer until i know what it is for sure..
 the other thing is i would like to check compression .. there are no wires with the motor ... not sure where i can hook up the battery to spin it over .. as i have said before, this is my first boat project .. if it was a car, i would be ok. i do not want to screw up anything trying to spin it over. can you give me details on how to check compression? .. i have a gauge. what else should i be looking for? he told me that he just had to replacing something electrical on the motor .. his friend turned the battery switch to off on the boat when they were out .. when they ran the motor to get back home, something fried on the electrical side. not sure what it was, but he said he paid a lot of $$ to fix.
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#9
07-24-2008, 10:40 PM
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Quote:
Last edited by bigshrimpin; 07-24-2008 at 11:00 PM.
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