Ns40c

Tbuff

Recruit
Joined
May 2, 2020
Messages
1
Hello everyone. Thanks for taking the time to read this. Any direction would be greatly appreciated. I just purchased and placed a 1993?40hp Nissan 2stroke on my Lowe’s stinger(17.5’). With muffs motor runs amazing. Compression is 121/120, the prop is in working order no spinning, both spark plugs spark on ignition. Motor looks clean and out of water runs great. Went fishing yesterday and my top end max was 7.5mpj. Any ideas?
 

Sea Rider

Supreme Mariner
Joined
Sep 20, 2008
Messages
12,345
Welcome to IBoats,

If the motor was previously running strong, prop could be already spun, perform a hub slip test to rule that out specially if being a 27 year oldie motor with current factory delivered prop.

Happy Boating
 
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