Question on my wr 400?

I recently picked up a 98 wr and was checking all the stuff changed all the fluids and checked the air filter etc. I recently noticed a small white tank on the back of the bike and it was empty but I believe I need to fill it with radiator fluid is this correct?

yes that is correct, that is the overflow tank for the radiator fluid. -Wes

Ok so I should fill it to the full line right.

Fill it to the full line while the engine is cold.

also if you just picked this bike up, id grab a new timing chain tensioner for it, will save you money in the long run:smirk::thumbsup:had my 98 jump a tooth kissing all the intake valves, ruined the piston and cams, either that or buy a manual one, never have to worry again

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