20hp evenrude full throttle needed to start

hdeuitch

Recruit
Joined
Jun 9, 2010
Messages
3
my 1985 20 hp evenrude needs to be set to almost full throttle to start her up, and set at anything less than 50% she dies, basically won't idle at proper low setting and when running at full throttle seems like she is only at running at approximately half speed. I have a 14 ft aluminium boat and with two people and my gear i can only get up to 17 mph if i'm lucky, should be going alot faster than that should i not?
 

kenmyfam

Supreme Mariner
Joined
Aug 10, 2006
Messages
14,398
Re: 20hp evenrude full throttle needed to start

Clean the carbs and fuel system.
Welcome to iboats
 

samo_ott

Vice Admiral
Joined
Jun 18, 2006
Messages
5,125
Re: 20hp evenrude full throttle needed to start

What year/model is it? Check the spark to make sure you have 2 strong sparks. While you're at it, checking the compression is always a good thing also. Then do the carb as mentioned.
 

hdeuitch

Recruit
Joined
Jun 9, 2010
Messages
3
Re: 20hp evenrude full throttle needed to start

20 hp evenrude is best i can do for your question of model but thanks for the help and the fine welcome appreciate the help

all the best

hdeuitch
 

hdeuitch

Recruit
Joined
Jun 9, 2010
Messages
3
Re: 20hp evenrude full throttle needed to start

anyone else have any thought? i'm not able to do much till the weekend and tryin to get as much nput as possible but these first two replies seem spot on but just the same if anyone has anything else that would be appreciated thanks all
regards
hdeuitch
 

ba_50

Chief Petty Officer
Joined
Apr 4, 2001
Messages
637
Re: 20hp evenrude full throttle needed to start

It has been awhile since you posted, did you solve it? I have the same problem with a 48.
 
Top