Quick Question

[Kris]

Hi

If a set of carbs on a bike are not sitting level would it make a difference to how it runs?. Say for instance that there are 4 carbs running from left to right on a four stroke, inline four. Carb 1 is sitting lower than carb 4 (lower than it should be anyways) - would it be noticed?

[edit] also, if this was caused by the engine not sitting level in the frame - would this make a difference?
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[Deano]

I've managed to put my carbs on before without realising that one of them was not connected properly and didn't noticed it running any differently.
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[Ste]

As long as they are all on, and there is no leak etc then I can't see it being a problem

[Scotty]

Can't see it doing anythnig to be honest, its still being feed the same amount of fuel and air mixture.

As long as the float doesn't over flow and still the fuel out at lean angles it shouldn't matter at all.
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Regards
Scott

[Kris]

Anyone else have a view on this?

Also - is there a way of making sense of this quote?

"Yea see if the engine's level - i.e. whether it's dropped or moved a bit. Also look at the alternator belts etc, you know with the pole with a socket on one end and a flat bit on the side."
WTF?
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NSR125RR - ZXR750H1 - ZX9R E1 - GSF600S - GSF600SK3 - VFR400-NC30 - SV1000N - ST1100-R - CBR900RR-R - GSF1200SK5 - GSF600SK1 - VFR1200FA - GSXR1000K2 - ZZR1400 D8F
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[Scotty]

Can't say i understand that one at all. But i will have what his smoking though

It was almost making sense but then it went on about a socket... lol
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Regards
Scott

[Hex]

The carb's should work slanted or not as long as the float in the float bowl still allows fuel in and its coming out of the jet. So a small slant should make no difference at all.

As for that other thing, not a clue what that means.
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[Kickstart]

Hi

Generally they should work at any reasonable angle. The mixture strength might be marginally affected by the fuel level in the carbs not being controlled quite so accuratly by the floats.

However note that with cars there is a problem with using carbs for a transverse engine on a car with an inline engine. The cornering forces will affect the float heights. All they generally do is pivot the floats in a different place. This might be what the other bit was originally referring to.

All the best

Keith
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[MarJay]

[Phoenix]

Bikes don't have alternator belts....cars do whoever said that isn't even answering the question anyway.

As long as the carbs are seated so that there isnt an air leak between the rubbers and the intakes then it'll run alright. An easy way to check if theyre leaking is to plug a carb balance in, if one carb isnt seated properly and air is leaking in the vacuum guage will register very low on that cylinder.

[Kickstart]