Adjusting float level


Information and questions on GL1200 Goldwings (1984-1987)
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ctag
Posts: 15
Joined: Fri Aug 18, 2017 8:45 am
Location: Alabama, USA
Motorcycle: 1985 GL1200 Aspencade

Adjusting float level

Post by ctag » Fri Sep 01, 2017 1:20 pm



Hi,

First of all, thank you so much! This website has been a tremendous aid as my friend and I try to get a non running '85 GL1200 Aspencade back on the road!

We just finished rebuilding the carbs with Randakk's rebuild kit and JBM diaphragms. I had read that the floats needed to be adjusted to 7.5mm. I went through with the adjustment but I'm not confident in that 7.5mm number or in the two reference points it relates to. I could really use your help making sure that the floats have been set properly :)

To set the floats, I rotated each carb so that the float just barely returned to contact the spring loaded plunger, without depressing the spring. Then I measured from the gasket surface to the outside edge of the floats. They were all reading ~10mm so each had to have the little tab bent to bring them in.

Does this look right?






We did try putting them in the bike like this, but the engine dies under medium throttle, so the carbs are coming out one last time to clean the jets again. While they're out, I'm hoping to double check the floats :)


"Voshkie" - 1985 GL1200 Aspencade

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ctag
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Motorcycle: 1985 GL1200 Aspencade

Re: Adjusting float level

Post by ctag » Sat Sep 02, 2017 8:03 am

Well after getting a wire and really cleaning the jets I got a little carried away. Reinstalled the carbs, and the bike runs! :D

I'm still hoping to confirm the float level information here, but I just wanted to share a progress update.
"Voshkie" - 1985 GL1200 Aspencade

gervais
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Re: Adjusting float level

Post by gervais » Thu Jul 11, 2019 9:50 pm

well
so you take all carburetors all climb together on the intake manifold and you upgrade the level of the fleet like that?

i must change all my jets on mine and i want too double check this level if my bowl are not over filled the carb because badly adjusted.

thanks
gervais

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ctag
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Motorcycle: 1985 GL1200 Aspencade

Re: Adjusting float level

Post by ctag » Thu Jul 11, 2019 10:52 pm

gervais wrote:
Thu Jul 11, 2019 9:50 pm
well
so you take all carburetors all climb together on the intake manifold and you upgrade the level of the fleet like that?

i must change all my jets on mine and i want too double check this level if my bowl are not over filled the carb because badly adjusted.

thanks
gervais
Yeah, check them with a caliper and make sure they're the same.
"Voshkie" - 1985 GL1200 Aspencade

gervais
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Re: Adjusting float level

Post by gervais » Fri Jul 12, 2019 3:02 pm

check this out,

i am not at all correct??

i found my spark plugs to be quite white and i am running #108 , and #35 already so if i am understand the float are too low so the needle valve DONT sut up the gaz coming forom the tank and it would explain when i start it it smoke and smell so bad???



gervais
Attachments





my white sprk plug,,,
my white sprk plug,,,


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ctag
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Re: Adjusting float level

Post by ctag » Fri Jul 12, 2019 3:11 pm

You want to check the float height while the floats are just barely closing the valve. With them upside down like that they can compress the little spring in the valve, which throws your measurement off.
"Voshkie" - 1985 GL1200 Aspencade

gervais
Posts: 305
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Location: riviere-bleue,quebec,canda
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Re: Adjusting float level

Post by gervais » Fri Jul 12, 2019 4:49 pm

ok so I will position my carburetors side,
standing and there will be no pressure on the small spring of the needle valve, is it?

thanks for responding,i am working now on those carbs

gervais

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ctag
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Re: Adjusting float level

Post by ctag » Fri Jul 12, 2019 4:52 pm

Yes, tilt them on the side. Maybe tilt them a small amount further back, so that you know the float is fully closing the valve.

Similar to the pictures here: viewtopic.php?p=305684#p239170
"Voshkie" - 1985 GL1200 Aspencade

gervais
Posts: 305
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Re: Adjusting float level

Post by gervais » Fri Jul 12, 2019 6:45 pm

well
i just finish all of them.
i took the intake (with all the carbs fixed) and handle it not vertical but a little ,

I held it vertical but leaned back a bit so the needle looks closed a bit but not too much pushing on the very small valve in the center of the needle.it is not easy when you are alone but i did my best.
I have doubts about the needle valve that would be worn not bad because I believe that it is the originals and that it was never work at the garage of the previous owner. The originals honda are 28 $ Canadian and the Chinese cheap ca m ' not interested because of poor quality.

gervais

gervais
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Re: Adjusting float level

Post by gervais » Sun Jul 14, 2019 8:11 pm

well
i changed the 35 idle jets for Made in Japan ones and adjust the float at 8 mm to gave a push at the needle valve.

when i am riding the bike is smelling a LOT LESS exhaust like before and at the start it also smoke less since i am really dough the chinese 35 jets that i add in the kit i baught before,i still have their box i could take a picture so anyone dont buy that junk.

so far it smell a lot less ,

what is the autonomy of a 84 Goldwing??
how many km should i be able to do + or - considering also that this is a 30 years + bike.

thanks for the chat
gervais
riviere-bleue,quebec

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ctag
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Re: Adjusting float level

Post by ctag » Mon Jul 15, 2019 6:07 am

how many km should i be able to do + or - considering also that this is a 30 years + bike.
Per tank? I'm not sure, but you can grab a small fuel bottle and ride until the tank's empty to find out.
"Voshkie" - 1985 GL1200 Aspencade

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julimike54
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2016 HD FLTRU

Re: Adjusting float level

Post by julimike54 » Mon Jul 15, 2019 9:31 am

If it's similar to mine (it runs very well) the mileage (km) will depend on the speeds or RPM. When I run above 3200 RPM the mileage will average 36-38 mpg (sorry I'm not metric smart), running below that will result an average of 38-42 mpg. I typically am two up also (fyi).
Image
Riding anything is a good day!
Mike

gervais
Posts: 305
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Location: riviere-bleue,quebec,canda
Motorcycle: GoldWing 1984 GL1200A Aspencade

Re: Adjusting float level

Post by gervais » Mon Jul 15, 2019 10:57 am

well
by just my experiences here about carburation,this engine is sensible too float level a lot and those jets so anybody running hard or at high speed will effect the mpg average.

for myself i let the engine accelerate normally and average 90-100 kmh ,,about 55 mph so normal riding except if i hear on my back 2-3 HD and their pipes trying too follow i will go around 140 kmh and man thats easy with that engine.

also i made 2 hole on the air box so more air is coming in acceleration and i can hear it love it.
2 holes of 1 each on each side of the air filter cover.

i will check how milleage i am doing next occasion i fill her full with Super gaz ,the engine loves it.
regular gaz is so weak these days,,even my lawn tractor dont like it that i am switching all my small engine to Premium gaz

gef



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