Banging my head 45 won’t start
Stellar HDF Member
Joined: Aug 2020
Posts: 3,159
Likes: 2,202
From: College Station, TX
And does the gas flow freely from the line at the carb? The shut off valves were notorious for not working very well. Although it was usually more about not shutting off fully.
Paul
Paul
Seasoned HDF Member
Joined: Apr 2010
Posts: 9,503
Likes: 7,806
From: Long Island, New York
First, pull the fuel line off right before the carb, do you have flow?
Are you running factory fuel filter or aftermarket? Do you have flow after the filter?
Next is the float level, you need to get all Jedi Master about making sure it is the correct height (1/4" below top of bowl from memory), parallel to the top of bowl and offset to prevent snagging.
After all of that goes well, and your manifold has passed a bubble test, she should start. Good luck.
Are you running factory fuel filter or aftermarket? Do you have flow after the filter?
Next is the float level, you need to get all Jedi Master about making sure it is the correct height (1/4" below top of bowl from memory), parallel to the top of bowl and offset to prevent snagging.
After all of that goes well, and your manifold has passed a bubble test, she should start. Good luck.
Seasoned HDF Member
Joined: Nov 2006
Posts: 12,878
Likes: 5,448
From: la la land jerzey
We had one with the spring for the main jet tube not installed - and other with the float to far to the one side and it did not move down to let fuel in - and another one the side sipper was for the throttle blade was sealed off stale fuel caused it < if the sipper does not work the fuel does not get pulled up to the carb for the engine
Advanced
Joined: Jun 2022
Posts: 58
Likes: 14
From: Sebastopol
Many great question and ideas.
Yes the tank is full with fresh gas, tank is cleaned and the fuel line is clear and free flowing.
Fuel is making it to the carb, but the carb appears to be flooding out because fuel is dumping out the vent hole.
But nothing is making to the plugs, they are dry.
I keep thinking the issue is in the carb, float is at 1/4” from edge of the bowl, pulled to one side freely moving.
Intake manifold is bubble tight!
My question is what is a sipper?
My question is what is a sipper?
Yes the tank is full with fresh gas, tank is cleaned and the fuel line is clear and free flowing.
Fuel is making it to the carb, but the carb appears to be flooding out because fuel is dumping out the vent hole.
But nothing is making to the plugs, they are dry.
I keep thinking the issue is in the carb, float is at 1/4” from edge of the bowl, pulled to one side freely moving.
Intake manifold is bubble tight!
My question is what is a sipper?
My question is what is a sipper?
Seasoned HDF Member
Joined: Apr 2010
Posts: 9,503
Likes: 7,806
From: Long Island, New York
Yes about the float, rubber ducky or an old cork or brass float? Rubber ducky is a must have.
I ran my bike for a year without the spring under the main tube. It will reduce the height into the venturi causing starting issues.
Bowl flooding might just be needing a new needle seat. Seems like you have a smoking gun, focus on the bowl.
I ran my bike for a year without the spring under the main tube. It will reduce the height into the venturi causing starting issues.
Bowl flooding might just be needing a new needle seat. Seems like you have a smoking gun, focus on the bowl.
Seasoned HDF Member
Joined: Jun 2015
Posts: 8,054
Likes: 8,079
From: Canada
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From: la la land jerzey
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