Float needle Seat filter question


Information and questions on GL1100 Goldwings (1980-1983)
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sperryunivac
Posts: 57
Joined: Sat Apr 02, 2011 2:41 pm
Location: Mississauga, Ontario, Canada
Motorcycle: 1983 Goldwing Interstate
1969 Bsa Lightning

Float needle Seat filter question

Postby sperryunivac » Tue Apr 02, 2013 9:51 pm



I am in the process of rebuilding the carbs on my '83 GL1100 and during the process I discovered that one of the float needle seats is missing the small filter. The carb looks very clean but I was wondering if that filter can be replaced or even if replacements are available. Are they glued in place?
My thoughts are to get one of the Randakk's filters and to leave this filter out. The other three carbs have their filters.
Would that be a good idea or not?



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trashtruck
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Re: Float needle Seat filter question

Postby trashtruck » Tue Apr 02, 2013 10:34 pm

www.carbkitscapital.com is supposed to have them but are currently out of stock. the only other way i know of to get them is to get the complete kit from honda. none of the carbs on my 82 have them so i started running a 2d filter in line.
WHAT IS THE SPEED OF DARK?

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thrasherg
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Re: Float needle Seat filter question

Postby thrasherg » Tue Apr 02, 2013 10:48 pm

It is just a fine wire mesh filter, you will have much better results fitting a decent inline fuel filter and not worrying about the little wire filter.

Gary

sperryunivac
Posts: 57
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Location: Mississauga, Ontario, Canada
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1969 Bsa Lightning

Re: Float needle Seat filter question

Postby sperryunivac » Wed May 08, 2013 12:06 pm

2.0mm Float seat on the left, 1.6mm on the right
2.0mm Float seat on the left, 1.6mm on the right
After some searching around I have managed to find a site that sells the float needle seat with the filter attached.
The only issue that I see is that the new seat has a larger inlet hole that I believe is 2.0 mm and my old ones are 1.6 mm. Will this be a problem affecting the fuel mixture or will it only fill the float bowl a little quicker if I use the new float seat? i can just move the filter over to the old float seat but was curious if anyone has used the float seat with the 2.0 mm hole in the GL1100.
I will try to attach a picture of the new seat.

Calzone
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Re: Float needle Seat filter question

Postby Calzone » Wed May 08, 2013 12:36 pm

The 2.0 is what I have in my 83` carbs. The 80-81 are a different seat then the 82-83 but are interchangeable just do all 4 of them and if you`re using old needles clean them and all should be well.
Regardless of what you have heard you do need the little filters and they should be inspected for tears,or breaches, you want good filters on all 4. The reason why, If only one reason is for the accelerator pump jets. These jets are super tiny, Like human hair tiny and the bowls need to be kept clean or debris will accumulate and or clog them.
If your carbs are off you want to test them, slides and caps out and off, wire the throttle linkage full open, Pull the bowl off the carb with the accelerator pump, and some way fill the line with a liquid, alcohol or water..I use a water pic myself because the tip of the water pik fits and seals the pump hole perfectly.
If your not using the water pik method you`ll need some kind of air blast, with bowls up carbs on the floor blast the hole with air and you should get an even spray out of each jet out through the throat of the carb.
You can also just use strait air and feel for the blast in the throat but I like a visual of what the spray pattern looks like.
Gotta be super clean here, especially where the pump jets are concerned. One more thing, If you use water for the test then be sure and use distilled water only do not use tap water.

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virgilmobile
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Re: Float needle Seat filter question

Postby virgilmobile » Wed May 08, 2013 2:29 pm

If the hole is bigger,the needle valve may set a little deeper.....Double check the float height before capping the bowls off.

sperryunivac
Posts: 57
Joined: Sat Apr 02, 2011 2:41 pm
Location: Mississauga, Ontario, Canada
Motorcycle: 1983 Goldwing Interstate
1969 Bsa Lightning

Re: Float needle Seat filter question

Postby sperryunivac » Mon May 13, 2013 9:34 pm

Calzone wrote:The 2.0 is what I have in my 83` carbs. The 80-81 are a different seat then the 82-83 but are interchangeable just do all 4 of them and if you`re using old needles clean them and all should be well.

I could not find any specs of what are supposed to be in the '83 carbs. Are the 2.0 needle seats the what came with your carbs or are they upgrades?
What I plan to do is to just move the small filter over to the seat that is missing one, that way i do not have to buy 3 more.
I agree that it is best to have the filters on the seat since this will keep anything particles that pass through from getting lodged between the needle and the seat.

Calzone
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Re: Float needle Seat filter question

Postby Calzone » Tue May 14, 2013 4:27 pm

I have no idea what originally was in my 83 carbs. I bought them that way.
As long as all 4 seats have a filter that`s all that matters, check any used screens for breaks, I had a few that looked perfect but had a fine break in the fabric....Almost used them.




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