Cooling systems can become seriously problematic if the internals are gummed up with sludge and contaminates that can occur on older machines; especially if any of the previous owners used the wrong (cheap! Tap-water!!) coolant.
To be sure of a fully functioning cooling system, renew all the various parts that may now be terminally blocked or suffering internal corrosion.
This item and some of the parts below may be required to achieve a fully successful overhaul of the radiator and it's associated parts, both for sound mechanical and cosmetic purposes.
Add as many items as you wish to the same shopping cart, a new Body 161601151 hoses 390621007390621335 pressure cap assy 490851062 & hose-clips(clamps) 921710179 for example, and still only pay the same single fixed price shipping cost.
If you are considering carrying out engine/gearbox/clutch related maintenance, then why not try this pro-workshop gasket sealant 08C70K0234M?
This component may have other, sometimes unrelated applications within the Kawasaki model range, so please always check by the part-number rather than the description prior to ordering.