Thought I'd post for anyone interested.

A CV4 20PSI (1.37 bar) radiator cap is available for KLX 250/300's, specifically (to the best of my knowledge) the H7F and A7F bike models, the code is CV715-20M

I'm not sure if there would be a whole lot of difference between radiator caps on different models, but I'm thinking of trying one on my H6F.

My H6F has Engine Ice for coolant, and after a hot days ride the coolant recovery tank is usually low, my guess is its all bubbling out. The standard cap is 1.1 bars, so I may try the 1.37 bar offering from CV4 and double check all my rad hose connections for the increased pressure.

 

I learned several years ago, that in a pinch, the early Honda Civic rad caps will work nicely on many Japanese water-cooled bikes. I keep one handy. Much cheaper and every parts place (or Wal Mart!) will have 'em.

 

Cheers for the reply. I found a 1.3 bar offering supposedly for all jap bikes & cars. Might give that a go.

 

I think I only took the cap off once in 6 years.

 

You musn't live/ride near the equator.

 

hahaha, those lumberjacks it seems do not flush their systems much either.