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Mercury 2 stroke blues...

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Mechaniac

New Member
Ok,

Long and short of it... 2 weeks ago I bought a 2000 Challenger 1800 w/Merc v6 210HP M2 sportjet. I Rode it out for an hour straight, refueled and headed back, ran good and suddenly went to half power, struggled and started knocking..No beeps no warnings..Should have serviced it like everything else when you buy it..Anyways. Looking to tear into it myself. Thinking from my limited general knowledge of the boat, and research and mechanical abilities, I can do this.. Or at least diagnose it... I am trying to deduce the cause and hoping for a limited repair of maybe a piston or two..I shut it off pretty quick. IT will still turn over...
What I've done:
Ordered a merc service manual for the 210 sportjet
Brought my boat home from the "merc dealer"
Realized again, if I want it done right and fair, I'm doin it..

What I need to know and plan to do:
I need others' input on this specific beast..210HP Carbureted m2 sportjet
I am planning to do a compression test, find the badness.Expose, inspect and hopefully repair and use it THIS SUMMER!!
Is a piston replacement doable in the boat or best to pull powerhead for ease of service?
I have a load of other questions and welcome any comments and suggestions!
I have heard that the 210 carb model was a typical iron sleeve engine and could be rebuilt anywhere and that the later sportjet were only servicable in Canada because of special cylinder sleeves..Hearsay or truth?
Looking forward to "knowing my boat"

I look forward to all of your replies.

Eric S.
Mechaniac
 
In my somewhat limited knowledge, you would have to pull the powerhead to dig into a cylinder. I agree the first thing you should do is a compression test. Good luck!
 
Good Luck, the merc powered boats can be very costly to do engine repairs. If you try searching here though there are several members who are very knowledgeable about them and should be able to steer you in the right direction.
 
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