Topic: 1925 Ruddertwin carb – Antique Outboard Motor Club,Inc

This topic has 10 replies, 4 voices, and was last updated 4 years, 4 months ago by Tubs.

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July 2, 2021 at 1:16 pm #241752
James Holloway
Participant
How do you set the needle valve. Motor started and ran for a short time after many attempts. Seems like it is starved for fuel
- This topic was modified 4 years, 4 months ago by Mumbles.
July 2, 2021 at 2:17 pm #241753
BROOK E. NEWCOMB
Participant
US Member
Make sure fuel cap is venting.
Make sure your fuel screen, line and carb are clean.
Push up the poppet valve stem from under the carb.
From the closed position open the needle valve until
Fuel drips out onto your finger. Start motor adjust
Needle valve accordingly.
Setting will vary slightly from motor to motor.

It always good to make sure your battery is charged
up as well.

Respectfully,
Brook
July 2, 2021 at 3:34 pm #241764
Tubs
Participant
If your having trouble getting it started it just
may be the opposite. Try starting the motor
as many as 8 times with the mixture screw
closed all the way. If it doesn’t start open
it a ¼ turn more from the last setting. If
the motor fires sometime in those 8 try’s
with the mixture screw closed and cleans
itself out you know it was open too far.
Video Link————–
https://youtu.be/qNj7TLNeeOw

A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.
- This reply was modified 4 years, 4 months ago by Tubs.
July 4, 2021 at 11:01 am #241917
James Holloway
Participant
Thank you got it going and it runs great. But not sure if is pumping a good amount of water
July 4, 2021 at 11:05 am #241919
James Holloway
Participant
Thank you got it runing good. But i am not sure if it is pumping good water
July 4, 2021 at 1:39 pm #241943
Tubs
Participant
.

A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.
- This reply was modified 4 years, 4 months ago by Tubs.
- This reply was modified 4 years, 4 months ago by Tubs.
July 4, 2021 at 3:30 pm #241960
James Holloway
Participant
Hi. I could see no water coming out of the coiled tubes. Cylinders got hot fast. I was runing the motor in a tank. Tge prop and rudder where well under the water. Does the motor beed to be moving through tge water to work.
July 4, 2021 at 3:38 pm #241962
Tubs
Participant
Yes – It needs to be moving to have the water circulate.

A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.
- This reply was modified 4 years, 4 months ago by Tubs.
- This reply was modified 4 years, 4 months ago by Tubs.
July 4, 2021 at 4:10 pm #241968
James Holloway
Participant
Thank you. I will look fir a blockage. If none i will conect a gardeb hose to the rudder. So i can fine tune. Befire taking out on the water.
July 4, 2021 at 11:59 pm #241982
HARRY D. NICHOLSON
Participant
US MEMBER PAY BY CHECK
I would never touch the end of a ruddertwin or speedster cylinder up through 1929 because the ends are extremely hot because there is no water jacket there. It is ok to lightly touch a surface with your wet finger if that surface has a welch plug on it, indicating a water jacket. Better yet is to spritz the cylinder with some water to see if the sides sizzle.
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