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Mariner 115 year

mirh

New member
"My motor starts easily, idles

"My motor starts easily, idles in gear and neutral ok.When you give it gas under load it does not pick up much, won't plane. Carbs kits redone a year ago and now stripped, cleaned.Find top two plugs oiling up, changed plugs, no change. Used it the week before and no problem, problem arose as soon as I put it in the water a week later. Fuel supply good"
 
do a compression check and spa

do a compression check and spark check
that motor only uses the top 2 carbs when idling
 
"I will check the compression,

"I will check the compression, hope it's not that because a piston and the rings were done a year ago. I will check for spark, what is the easiest way to check please. I appreciate your help, thanks."
 
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