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2021 compression test.


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19 hours ago, Terry said:

Yeah I think 180 is a great number for a 4stroke. But if both cylinders are the same 125 or more it would still be an ok motor 

the dealer is getting 115 and 121 on a 2021 with 20 hours on it ruffly ... there is a long story behind this motor... 

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7 minutes ago, Terry said:

It’s not a good motor anymore 

needs work

that's what dealer is saying but Mercury says not till below 60.... I think mercury is trying to see if it goes after warrantee ... I will no more on Monday afternoon.... ps this thing has already had 4 carbs on it ...   and from talking to people I am not even certified to hold a screw driver lol.  if carbs sucked air during break-in then that means it ran lean and can burn your pistons ??

 

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On 6/26/2022 at 10:49 AM, Terry said:

It’s not a good motor anymore 

needs work

there saying that seeing I have had 4 new carbs that it could be a carbon build up causing low compression ... does this make sense ??

 

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Well if carbon builds up

on the rings or ring groves it can cause lower compression 

So it is possible ,but I am

no expert. Just been around long enough to have seen a few things 

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