01 yz 250 power valve ?

[ScottyV]

I have just bought a 2001 yz 250 and its my first bike in a long absence from the sport. I am completely and totally in love with this bike but I am concerned because an oily residue is leaking out of the rubber breather hose that leads to the power valve. I have been around two strokes a lot and have had to clean my sticking powervalves more than once on my Sea Doo and Suzuki LT-250. After a ride, I park it in my garage and it leaves a half dollar size spot on the floor.

Is this normal? I am running Honda Hp2 oil. I've thought about switching to Yamalube but haven't yet. (running out the case of Honda oil first.) The bike is totally stock with the exception of a FMF turbine core sparky and has less than 25 hrs on it.

 

[Rcannon]

I think this is normal. My YZ pukes a bit of stuff out of the breather. I seam to get less with Yamalube R, but thats just my opinion.

I save it and rub it on my mailbox handle. This helps me get even with the postman for reading and tearing my magazines before he deliveres them.

 

[Reesknight]

Yep, that's normal. Mine smokes out of it too sometimes.

 

[Studboy]

My 02 even with my jetting almost spot on and running it hard at the dunes always drips a bit, I don't think I can get rid of it. Why don't other bikes have relief hoses like this?

 

[yitsock]

I've got an 03 yz 250 and it runs great, I believe jetting is spot on, but yeah, I've got the same crud coming out of my bike after every ride. I wasn't worried about it, glad no one else is either!

 

[jho410]

Same thing on my 01. Not worried about it but expecting it to decline once I do a top end.