Slide carbs

[bomberone]

Still prepping these original slide carbs to replace the cv' s on a gsx1000. 

Is it worth swapping out the brass floats for the plastic ones from the cv' s?  I do try to stick to e5 fuel..... but?

The carbs have a central fuel inlet, but carbs 2,3 & 4 all have a brass inlet spigot for a vacuum hose? Do 2 of these need blanking?

Ta

[TonyGee]

49 minutes ago, bomberone said:

Is it worth swapping out the brass floats for the plastic ones from the cv' s?

will they swap ?  I didn't think they would but Im probably wrong   

[bomberone]

Thought they looked similar but I'll check if they physically fit.

[Gixer1460]

14 hours ago, bomberone said:

The carbs have a central fuel inlet, but carbs 2,3 & 4 all have a brass inlet spigot for a vacuum hose? Do 2 of these need blanking?

Vac hose connections on 3 out of 4 carbs would be unusual? Fuel tap vac usually off an inlet rubber, carb balancing vac ports on all carb bodies are normally blanked / capped off. Plastic floats good idea but straight swap ? ? ?

[gs7_11]

One of the brass spigots would be the vacuum for the tap, probably the middle one.

The other 2 will be Float bowl vents, each one linked to 2 float bowls. 

Edited January 11, 2023 by gs7_11

[gs7_11]

Don't know if you've seen this video?

Youtube VM32 Video

[Gixer1460]

5 hours ago, gs7_11 said:

Don't know if you've seen this video?

Youtube VM32 Video

Interesting video and informative - 4no. Vac ports with black caps. But no obvious float bowl vents - maybe vented via carb bore? Nice to see plastic floats as option?

[bomberone]

Ta for replies, hadnt seen that vid.

Those spigots/ports? No.1 is cast blank.  So only 3 ports.

In the roof of the float bowl no.3 has a ball bearing , the others are open. Perhaps that one (no.3) is the vac tap?. (As gs7_11 suggested).  If the other 2 are vents they need to be unblanked?

You were right, the plastic floats from bs34 carbs hardly fit (restricted travel), but good to see vid shows direct plastic replacements available.

[gs7_11]

He's capped those off for shipping I think. They are the 2 Float bowl vents on the outside, and vacuum in the middle.

Same as VM28 etc.

Yes, the 2 vents need to be uncapped, and preferably piped away to an area of still-ish air. Some of these carbs can be affected by changes in air pressure in the float bowls, although I believe the CV BS carbs are the main culprits for this.

 

Edited January 11, 2023 by gs7_11