Overheating again

the theory behind the thermo is to slow the flow of fluid as it passes through the radiator to allow a greater cooling efficiency .

Husa 98,
I have eliminated the thermostat in my bike, a 2006 FE450. I purchased the radiator hoses for the FC model, which does not run one. I have had good results. I may get some flak for this, but I believe the thermostats are used to achieve emissions results on the dyno for certification.

You can also try an non aqueous coolant such as Evans and eliminate boil overs, and high pressures in your cooling system for good.

I have gone back and forth with the Evans. I ran it for a couple of years, then tried running with a standard coolant. The result was boil overs in tight rough terrain. So, I have gone back to Evans and will stay with it.

I have cooling issues with my 07 FE650E here in the oven (West Africa) whenever my average speed drops, all the KTMs dont (cooling fans). I took out the thermostat and ran strainght pipes, no difference. Have to keep moving and do a cool off lap before stopping to cool the fluid. I have just bought a fan for it which I am yet to instal.
One major event which was a shocker was riging 45 minutes (one and a half) races here with zero coolant. Half way through the second heat I ate ground and ended up in the bushes, got a branch wedged between the frame and the radiator hose which pressed the hose against the header and burnt a large hole in the hose. All fuild drained out - I didn't notice at all in the heat of things trying to get back on track to keep my position and rode the rest of the race. At the end of the heat I smelt burnt rubber but thought it was from my pants which were also burnt, saw a stich in the frame pulled it out from the other side and DIDN'T NOTICE. Then rode the last 30 min heat and came 3rd. Got home, was washing down the bike and noticed the huge hole, opened the rad ZERO coolant - dry.. There is no noticeable engine damage from this!!!! The Husaberg guys says its due to good oil and the fact that I dont fully rev the bugger (cant wind opeen fully a 650 on a track mate).I say it's oil and luck and maybe Husabergs are being built stronger! The temp at the track was over 35'c. HUSABERG!

I had the same stick misfortune on abut my maiden ride on the berg, nearly lost the coolant, but smelled the rubber before it let go, I still have the same hose on the bike, and have a spare, Im just waiting to drop the coolant again on the next valve adjustment to replace it.

Gotta be lucky sometimes afro!

Azza.

Woooo Hooo! just became a four star fixture!

european radiatore have the same style of cap while the japs have the other. try a higher pressure cap as the husaberg is quite low/reasonable at 1.8 bar.

in the Uk, demon tweeks -of wrexham are the boys to talk too!

regards

Taffy