Hey i have a 04 motor Athena 480 kit, WR crank, bored carb to 42, running U4.2 jetted correctly, i seem to be losing coolant out of the over flow have to refill after every heat race or main. Any ideas on what it can be? Thanks for the help..
After you clean and dry off your bike, set it over a dry spot in your garage overnight and see if it's leaking anywhere. Mine starting doing this last year, turned out to be a cracked overflow bottle.
It drips oil over a period of time but no coolant but i can swap out my 07 for this one. But a cracked overflow will cause that? It comes out of the hoses at the top.
This is an older thread, you may not receive a response, and could
be reviving an old thread. Please consider creating a new thread.
YFZ Central
A forum community dedicated to Yamaha YFZ owners and enthusiasts. Come join the discussion about performance, modifications, troubleshooting, maintenance, classifieds, and more!