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What's this bit do?
- Thread starter Willholmania
- Start date
Crankcase breather. The tubes should route into the airbox upstream of the carbs, if it's like the one-tube version my 82 had.
Willholmania
XS650 Enthusiast
Ah - thanks.
Yup - and it you don't put some tubes on there and route them...somewhere, oily mung will barf all over the backside of the cylinder barrels.
As NightHog says, there are two spigots on the stock airbox to which you run the rubber tubes and if you don't have the airboxes, then some folks run them down onto the chain as a sort of "poor-man's" Scottoiler. The amount of stuff that comes out is not massive, but it will make a mess if you don't handle it.
Pete
As NightHog says, there are two spigots on the stock airbox to which you run the rubber tubes and if you don't have the airboxes, then some folks run them down onto the chain as a sort of "poor-man's" Scottoiler. The amount of stuff that comes out is not massive, but it will make a mess if you don't handle it.
Pete
Willholmania
XS650 Enthusiast
Okay - will do. I'm not sure whether I have the stock airbag or not. Underneath the side covers there are jus two cone type K&Nish filters - one on each carb, obvs.
You do not have the stock airbox. You could attach tubes to the two spigots and route them to a catch-bottle attached somewhere. Or you could route them near the chain, as Pete has suggested.
My bike had similar two-spigot breather box, with two rubber tubes routed to the standard air filter box. The tubes were a nuisance as they took up space in a very crowded area.
But then I swapped the engine and the replacement motor has a single spigot, which gave me pause for thought. So now I have a single rubber tube, routed down between the carbs, in front of the swing-arm pivot and venting into fresh air below the engine.
This arrangement has given no problems.
My bike had similar two-spigot breather box, with two rubber tubes routed to the standard air filter box. The tubes were a nuisance as they took up space in a very crowded area.
But then I swapped the engine and the replacement motor has a single spigot, which gave me pause for thought. So now I have a single rubber tube, routed down between the carbs, in front of the swing-arm pivot and venting into fresh air below the engine.
This arrangement has given no problems.
Foam pod filters will likely result in better performance for you, and you can dump the breather junk right onto them.
Details here:
http://www.xs650.com/threads/pros-and-cons-of-pod-filters.56824/
Details here:
http://www.xs650.com/threads/pros-and-cons-of-pod-filters.56824/
Last edited:
Willholmania
XS650 Enthusiast
Ah - thanks - will do. I'll just stick some hoses over the steel outlets then.
