Hose 55

[Guest]

I have a hose nipple on the carb assembly that was not connected to a hose when I bought my bike and so far everything is running well. Anyone know what the purpose of that nipple is?

The hose is labeled 55 on the exploded diagram found on the CMSNL site.

[Redman]

[Redman]

(I dont have any expereince with 450s)

You feel suction on that nipple when bike running?
Run or idle any different when you cover it?

Tell us about what gas petcock you have on the tank. Youhave to leave it in PRIme to get bike to run?

[Polish-Jack]

I haven't though to test if there is a vacuum on the nipple, but the petcock is a vacuum activated petcock that connects to the carb through hose 54. The only options on the petcock are fuel and reserve. The fuel hose connects to part 62 in the exploded diagram.

[Steve]

That is a VENT port. There should be a hose connected to it that goes back, over the airbox, likely ending under the seat, in relatively calm air.

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[Polish-Jack]

That is a VENT port. There should be a hose connected to it that goes back, over the airbox, likely ending under the seat, in relatively calm air.

.

Good to know. I'll put a length of hose on it and route it back there somewhere.

Thanks.