Need help with 2003 Suzuki 150hp 2 stroke efi

Joined
Jun 27, 2013
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5
Hello everyone. I have a 2003 Suzuki 150hp 2 stroke efi engine. I have had the voltage regulator replaced and the throttle position sensor replaced as well. Drained the fuel and new fuel lines have been installed. The issue I am having is it will start fine and idle fine. The moment its put into forward or rev, the motor bogs down and dies. I have had two Suzuki mechanics look at it and they cant figure out what the problem is. Has anyone had this problem before and can you help me out? Thank you for the help.
 

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
Messages
45,907
Re: Need help with 2003 Suzuki 150hp 2 stroke efi

You need to verify your info, SS. I am not aware of any Suzi 2 strokes made in 2003 or any 2 stroke EFI Suzis. That doesn't mean they don't exist, but I never heard of either.
 

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
Messages
45,907
Re: Need help with 2003 Suzuki 150hp 2 stroke efi

DF150 is a 4 stroke.
 

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
Messages
45,907
Re: Need help with 2003 Suzuki 150hp 2 stroke efi

Shazam! Never saw one of those before. :facepalm:

From your description of your trouble I think that you are running on only 2 or 3 cylinders. As soon as you apply a load they can't keep it running.
 
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