Author Topic: how to adjust accelerator pump?  (Read 1125 times)

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Offline juntjoo

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how to adjust accelerator pump?
« on: January 16, 2018, 07:48:10 PM »

as I state in the vid, two guides I've read simply state to bend the adjusting arm. Are we talking about taking it out and putting it in a vise and getting out some tools or use some pliars and bend a little something in there? and why didn't they just make it adjustable with a knob or something?
-Ben

82 Nighthawk 650..

1982 Honda Nighthawk...

I HAVE A 1982 HONDA NIGHTHAWK FFS! j/k. It's my only bike, my first and last.

Offline scunny

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Re: how to adjust accelerator pump?
« Reply #1 on: January 16, 2018, 10:43:34 PM »
What makes you think the accelerator pump needs adjusting ?
past-cb100,ts250,cb500,cb500,gs1000,gs650g.phillips traveller
present-CB 650 retro
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Offline juntjoo

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Re: how to adjust accelerator pump?
« Reply #2 on: January 17, 2018, 03:13:17 AM »
What makes you think the accelerator pump needs adjusting ?

I read that there is supposed to be a gap there between the rod and the adjusting arm. As shown in the vid they're up against each other so either the rod needs to come back or the arm needs to go back. As it stands the rod is being depresseda couple mm's. How is yours?
-Ben

82 Nighthawk 650..

1982 Honda Nighthawk...

I HAVE A 1982 HONDA NIGHTHAWK FFS! j/k. It's my only bike, my first and last.

Offline juntjoo

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Re: how to adjust accelerator pump?
« Reply #3 on: January 17, 2018, 10:51:58 AM »
https://imgur.com/a/L5DYo

it's in the middle of the screen, the gap behind the adjusting arm and carb bodg. anyone know if there should be a gap and if so how much? OR, what is the length of this diaphram rod supposed to be?
-Ben

82 Nighthawk 650..

1982 Honda Nighthawk...

I HAVE A 1982 HONDA NIGHTHAWK FFS! j/k. It's my only bike, my first and last.

Offline juntjoo

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Re: how to adjust accelerator pump?
« Reply #4 on: January 17, 2018, 11:49:54 AM »
I'm wondering if I may have put weight in the arm with the spring that links the throttle pulley to it all and bent it. Mine's 90°. Im wondering if it WAS like 95°

https://imgur.com/a/CaXkd

can someone check the angle on that arm for me?
-Ben

82 Nighthawk 650..

1982 Honda Nighthawk...

I HAVE A 1982 HONDA NIGHTHAWK FFS! j/k. It's my only bike, my first and last.

Offline juntjoo

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Re: how to adjust accelerator pump?
« Reply #5 on: January 17, 2018, 03:13:57 PM »
F it. I just cut off 3 millimeters and it's perfect. hopefully no one responds telling me I messed up.
-Ben

82 Nighthawk 650..

1982 Honda Nighthawk...

I HAVE A 1982 HONDA NIGHTHAWK FFS! j/k. It's my only bike, my first and last.

Offline scunny

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Re: how to adjust accelerator pump?
« Reply #6 on: January 17, 2018, 07:44:03 PM »
sorry, late reply  ;D
there were 2 different length plunger rods, short for the PD carbs, long for the CV carbs. Someone replaced yours with the wrong one, cut and shut, carry on sir.
past-cb100,ts250,cb500,cb500,gs1000,gs650g.phillips traveller
present-CB 650 retro
            VTR1000F3
           XL250S riverbed rocket
           TS250[sold]
           TS185[sold]
           XL125S[sold]
           MT50 (white)
           MT50 (red)[sold]
           KN250/XS400 project
           XR/XL250 bitsa under construction
           SL100[sold]
           XL250R
           pedal(pub bike) leaks oil
my gallery http://gallery.sohc4.net/members/personal/scunny

Offline juntjoo

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Re: how to adjust accelerator pump?
« Reply #7 on: January 17, 2018, 08:01:53 PM »
thanks
-Ben

82 Nighthawk 650..

1982 Honda Nighthawk...

I HAVE A 1982 HONDA NIGHTHAWK FFS! j/k. It's my only bike, my first and last.

Offline MetroRedneck

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Re: how to adjust accelerator pump?
« Reply #8 on: January 18, 2018, 09:06:03 AM »
You can bend too.  Yes with pliers.