Exup 1000

well i took the pump out, everything looked ok. replaced all the orings and housing seal. didnt leak a drop of oil or coolant while sitting there statically. turned it on to burp the coolant and started leaking oil. im guessing it has failed internally allowing oil to pass through to the weep hole ...

took a look around the engine and didnt see any signs of dripping. the dripping is still present even with the engine off.

There is a witness hole in the body of the pump, it would normally show coolant as the coolant around the seal is pressurised but the oil is only splash fed to the bearing,
The oil seal is on the body of the pump itself and is very easy to replace after removal of the pump

https://i.imgur.com ...

my FZR had an oil leak 'from the water pump'. It was actually from one of the oil feed lines at the back of the cylinder block (bad copper seal) and the oil tracked down that way. The water pump is one of the lowest points, when the bike is on the side stand, so can be a drip point for leaks from ...

So I've been chasing an oil leak for awhile now, tinkering whenever I get a chance. I replaced the shift rod oil seal and shift rod, ran the engine with the sprocket cover off, and the leak persisted. Oil is dripping off the lowest bolt on the water pump. Think this is a case of a bad o-ring inside ...

Welcome home!

You found this FZR in Japan? I though they had engine size restrictioins there...

Regarding the intake rubbers, not sure you have the restrictors, as this was specific for the 100HP versions (such as in France, but maybe also in other countries, I don't know for sure...).

But it is ...

Hi all,

Thanks for letting me in. Im a Marine stationed in Japan and came across a 1990 FZR with just 13k kilometers. Im eager to get riding and tinkering. I guess my first order of business is the R1 caliper swap and possibly removing the rubber "restrictor" in the intake couplers (can't think of ...