1985 70hp evinrude won't get on plain.

Arykeion

Seaman Apprentice
Joined
Oct 12, 2012
Messages
32
Everything is brand new on motor. Carbs cleaned,new fuel pump and lines,perfect spark,new gas tank,fuel getting to all carbs,new primer bulb,compression is 120psi down the middle. Motor won't get on plain unless u go to the back and hit the throttle about 5 times then it gets on plain. When it gets on plain u can c the fuel coming out perfect from all three main fuel in the carbs. Could it be the motor is to small for the boat.the throttle arm and timing arm is working perfect. The sync n link is perfect too. It's a 1985 70hp evinrude. The boat is rated for a 135hp. Please help me thanks.
 

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
Messages
45,907
Re: 1985 70hp evinrude won't get on plain.

You are definitely underpowered, Arykeion. You would need at least 95HP to get satisfactory performance (70% of rated HP) from your boat.
 
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