B-112 Breather?

[kfran 0]

Yesterday while installing me ignition module, I noticed a roughly 1" rubber hose hanging out behind the carb. It appears to be the breather hose, but is just sitting there. The end of it has a ridge that looks like it is supposed to be inserted into something. Where is this supposed to go? Thanks.

[HubbardRA 20]

Usually one end either attaches directly to the carb on a Kohler or pops into a hole on the duct between the carb and air filter on a B/S. The other end attaches to the access cover to the valves. This is your crankcase vent hose. The air needs to be filtered, otherwise you are getting dirt into your crankcase. Rod H.

[UCD 15]

This Tube vents the crankcase of excess preasure. Every engine has a certain amount of blowby. With out it preasure would build up in your crankcase and blow a seal. The tube directs the crankcase gases to the carb to be reburned. Air polution you know. This & $1.00 might get you a small coffee Maynard aka/UCD

[kfran 0]

Actually, there is a hole in the pipe between the airfilter and carb. However, it is turned away from the breather tube. How does the pipe connect? Could it be turned?

[Ryan 0]

Yes, the pipe can be turned. The hose fits between the carb stack (hole that you are explaining) and the valve spring cover plate. Do not run the engine without it in place. The hole in the stack will pull in dirt and fry the engine. Ryan

[kfran 0]

Is the pipe threaded?

[Ryan 0]

The part the hose fits in is not threaded. It my be a little tight though. Ryan

[KSever 8]

If it's the rubber one it might be a little brittle. When I went to put the one back on my 717 I had to get a new one or less brittle one I should say because the old one cracked in half. I suppose from the heat and age.