Pump?
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Tourer
Joined: Apr 2023
Posts: 251
Likes: 72
From: New Orleans
Pump?
I firmly seated Super E accel. pump but I get (0) stumble, in fact it performs better. Should I be concerned? Idles fine, revs fine, ride fine.
Last edited by McGurk; Jan 13, 2024 at 06:44 PM.
Seasoned HDF Member
Joined: Dec 2005
Posts: 19,925
Likes: 8,027
From: poway
I'll agree with Texas. It's probably OK. Screwing in turns the screw turns down pump. You probably still have a little bit of travel on the pump with the screw seated. You might be running a little rich on the intermediate but I wouldn't mess with it unless you are getting real crappy gas mileage.
Grand HDF Member
Joined: Sep 2017
Posts: 4,359
Likes: 1,219
From: Dubuque, IA
I'm not real familiar tuning the Super E. I DO know when tuning a mikuni hsr series carb, which has 2 adjustments for the accel. pump, I always turn both down/off when tuning the jets. It will interfere with the tuning process really. Then the pump, where it comes on and starts squirting fuel and for how long is adjusted to give extra fuel as needed when the wick is twisted hard. It will run perfectly fine without the pump but might stumble when you accelerate hard and fast.
Hope this helps understand the reason for the pump basically.
Hope this helps understand the reason for the pump basically.
Last edited by 60Gunner; Jan 15, 2024 at 01:10 PM.
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Seasoned HDF Member
Joined: Dec 2005
Posts: 19,925
Likes: 8,027
From: poway
I'm not real familiar tuning the Super E. I DO know when tuning a mikuni hsr series carb, which has 2 adjustments for the accel. pump, I always turn both down/off when tuning the jets. It will interfere with the tuning process really. Then the pump, where it comes on and starts squirting fuel and for how long is adjusted to give extra fuel as needed when the wick is twisted hard. It will run perfectly fine without the pump but might stumble when you accelerate hard and fast.
Hope this helps understand the reason for the pump basically.
Hope this helps understand the reason for the pump basically.
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