Radiator cap

[pine box]

Hello, I am new to this site and would appreciate any assistance you folks can offer me.

I have been having problems with my 94 K11 boiling over. I have read some of previous posts and think I will change radiator cap as first step. I think fan is kicking in at appropriate time. My question is that I have a 85K100 and was curious if the cap will fit. This bike is at a friends 500 km away and I would have to make arrangements for him to send me the part. Dont want to go through hassel if it won't fit.

[Inge K.]

Same rad cap is used on all old K's, K1, K75, K100 and K1100.

[F14CRAZY]

Does the K radiator cap do anything to release pressure like in a typical automotive application? It looked like a plain cap to me

[Inge K.]

The cap is euqipped with two valves, overpressure (1,0 bar) and underpressure (-0,1 bar).

[pine box]

thanks for the input.

[Inge K.]

Also check that both gaskets is in good condition, especially the one with the smaller diameter.