Float Bowl


Information and questions on GL1000 Goldwings (1975-1979)
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Steve01
Posts: 7
Joined: Tue Aug 28, 2018 1:00 pm
Location: New Albany Ohio
Motorcycle: 1977 Honda GL1000

Float Bowl

Post by Steve01 »



I have a few carb questions:
1. Does anyone know how many CC's the float bowls should hold when the floats are adjusted correctly?
2. I have a float bowl screw hole stripped out. What is the original screw size and thread - and what would be the next size up?

Thanks in advance for any help.


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dingdong
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Location: Oklahoma City
Motorcycle: 1976 gl1000
1993 gl1500A
2004 NRX1800 Rune SOLD

Re: Float Bowl

Post by dingdong »

Not sure about float fuel CCs.
Original JIS screw size in mm is 4x70 Next size up is 5x80. Be very careful when tapping the carb bodies. The cast aluminum alloy can fragment at the threads if you work too fast or don't use cutting oil. Slow and careful. There is so little extra material around the holes you only get one size over to get it right. I messed up a couple when I attempted to tap mine. Ended up going with Heli-Coils and using the original screw size.
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landisr
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Location: Gilbert, AZ
Motorcycle: 1976 GL1000
1976 GL1000LTD
1994 GL1500A

Re: Float Bowl

Post by landisr »

In a pinch, you could try filling the hole with JB Weld, letting it set up, then drilling and tapping with the stock size. I don't believe those screws are intended to be torqued tight enough to pull through. Others might know more about it and will chime in...

Ron in AZ
I'm not so sure about an inner child, but I have an inner idiot that surfaces every now and then.. :mrgreen:
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Maz
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Location: Kent, UK
Motorcycle: 1975 GL1000K1
1976 CB500T
1979 CB750L
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1993 Suzuki GS500E

Re: Float Bowl

Post by Maz »

Steve01 wrote: Mon Sep 24, 2018 4:16 pm I have a few carb questions:
1. Does anyone know how many CC's the float bowls should hold when the floats are adjusted correctly?
2. I have a float bowl screw hole stripped out. What is the original screw size and thread - and what would be the next size up?

Thanks in advance for any help.
If it's the screws that hold the bowl on, use a Helicoil kit to re-thread them back to original size. I have done this on 2 of my carbs and it works perfectly.
Maz


Ironically, Common Sense is the LEAST common of all senses!
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