rgvsean wrote:Just checked the price of an RGV radiator from Suzuki. £587 in the UK

Can anyone get the price of an NSR one?

£266 + VAT

Just a thought but has anyone with heating issues ever considered the thermostat might be f******.

Its a good bet given the state of maintenance carried out on your average road bike, that its NEVER been replaced since the bike was made.
Even the youngest NSR is 9 years old now.

£20 for a thermostat is not a lot to pay to cure the problem.
But as its not £300+, you cant SEE it and it's not a "trick" part then maybe thats why they don't get replaced?

Also it's not surprising there are problems when people run just water in the system as well.
http://photos1.blogger.com/img/233/8281/1024/WaterOutlet.jpg
Just imagine what the rest of the waterways are like.

If the problem was inherrent then every NSR would overheat.

Just for interest, a Honda RS125 race bike runs a "curved" radiator as standard and uses only one litre of coolant in the system. They only cost £280 + VAT and have no heating issues in race mode in hot weather. You usually have to run up to 4 pieces of duct tape across the rad on a cold day just to get them up to working temp.
Mind you they don't use a thermostat at all!!

NSR's like most bikes don't come out of the factory with heating problems!!!