oil leak

just started bike after degrease.........oil leaking quite seriously from behind front sprocket ( collected crud must have been holding it back )...........can this seal be accessed from external attack....or is it the shits and a pull down........... zxr 250 c




answer it appears is yes going by bits that are now in my hand .........but joint clip from chain has gone to the gods sproinnnng !!!!

the chickens in the oven and im going down the shops....wife says........i dont even eat chicken...wtf

Hehehe, good luck finding whatever the hell it was that came off. There are two ways to design engines, one with the output sprocket seal between the two halves of the crankcase, and the other (good) way whereby there is only a ballrace held between the halfs of the crankcase and there is an external plate that covers the output shaft & houses the oil seal on it.

The manual for my old gpx said you had to take the clutch slave unit & extension rod off, then take the plate cover off (the bastard bit was the cheese head bevelled screws just next to the sprocket, caused me a bunch of headaches ) and pull it out with the gear lever output shaft, disconnect the selector coupling from the gear lever, hope to hell nothing shoots off (as you'll have a prick of a time replacing them) punch the oil seal out from the inside and replace them.

I wasted over ten hours stripping crap off (alternator, water pump, clutch slave) and wrestling with the bolts cheeseheading (replaced them all with stainless steel ones) and two hours doing the actual replacement. I recommend if you go to the extent of doing all the above just replace ALL the oil seals at once (there should be either two or three depending on if you've a cable clutch or a hydraulic one) and be done with it for another 30-50kkm.

If you've got a hydraulic clutch there are two oil seals, one to seal in the hydraulic fluid, and one to seal in the engine oil. I've got to do the clutch one on my RF, apparently it is a design flaw (that they share with gixxers and expecially busa's) whereby there is no guard to stop shit flinging off the sprocket onto the clutch rod, which then slowly works its way through the oil seals and you start leaking either green or browny fluid depending on which one goes. I've got to replace the green one, might do that tomorrow on the "government inspired public holiday" (TM). The only disadvantage is we loose our christmas picnic day this year, no biggie, i work shiftwork most the tie anyway

u have confused me!!

I have done soooooo many k's on muddaboiks over the years and have never never never ever had to do a counter shaft seal! I reckon there may be a reason for that! Try adjusting the chain correctly once you have replaced it!

all is not lost...pulled sprocket as mentioned on first post...was edit to first panic attack ....cleaned seal location
.....replaced....no leak....yet !!.............is external seal with no cover or visible fixing points to suggest ever was..........glad its not a gpx.....that set of seals sounds like my initial panic ...work your way in from ripping the bike to bits...........guess zxr 250 is latter version mike
so all have to do now is buy retaining clip for chain joiner link (sproinnng)......adjust and off we go .....till it leaks again.......replace with new seal...........

u have confused me!!

why cos i don't eat chicken

u have confused me!!

why cos i don't eat chicken

no..cos u dont speak english!!

So i am not the only confused one here chicken sounds good though!

sorry...... dont know any other languages to destroy , so i'll just have to keep bashing ingleesh...

sorry...... dont know any other languages to destroy , so i'll just have to keep bashing ingleesh...

hahaha works for me too!!

tho since im getting better at typing, i no longer have to abreviate words with numbers and shortcuts...much!!