Mercury 3.5 HP fuel shutoff

PeteT

PeteT

.
May 2, 2023
37
Catalina 30 Channel Islands, CA (Oxnard)
I purchased the 3.5HP for the dinghy. It was used and supposedly out of the shop. Oil Site glass was completely filled and the fuel shut off knob is not connected to anything. Also it looks like the actual shut off valve is installed up side down. I can see what parts are needed, but for the life of me I can't figure out how to remove the shut off knob much less how to replace it. Anyone ever looked at something like this? It looks like I can do it...if not I'll bring it to the shop :)
 
sailcapt340

sailcapt340

.
Sep 26, 2008
713
Hunter 340 0 Wickford, RI
Give us a year of the outboard as well. Lots of us have that size outboard.
Also, have you tried to remove the lower cowling to access the fuel shut off?
 
Last edited:
Joe

Joe

.
Jun 1, 2004
8,200
Catalina 27 Mission Bay, San Diego
Looks like you can get the owner's manual here:

Here's a link for the parts catalogue

I have a Tohatsu 3.5, which, I believe, is exactly the same motor. Except mine is a 2018 model. You're on your own from here.
 
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D

dlochner

.
Jan 11, 2014
12,988
Sabre 362 113 Fair Haven, NY
PeteT said:
Also it looks like the actual shut off valve is installed up side down.
Click to expand
What makes you think the valve is upside down? Has the engine been run?

Best bet is to get a service manual for the motor. Is this the model you have?

www.manualslib.com

MERCURY FOURSTROKE 2.5 SERVICE MANUAL Pdf Download

View and Download Mercury FourStroke 2.5 service manual online. FourStroke 2.5 outboard motor pdf manual download. Also for: Fourstroke 3.5, Fourstroke f3.5 mlh.
www.manualslib.com www.manualslib.com
 
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