Really Stupid Question: 2009 YZ250

It has been rainin here in MN for weeks, and as a result, the bike gets muddier than it typically would. I have been cleaning it afterwards. The question: How tight is it between the exhaust and engine? I am afraid to spray water near there as a result the the engine will get water in it? Am I being too cautious? I am sure that I am, but I was wondering how tight it actually is. Should I not worry about it? Thanks!  

As long as you are not getting water in the tailpipe, you should be good, but only spray the bike as much as you have to around the engine area, that's always a good precaution...  
********************
Arizona

(2001 YZ 250F)
(2002 YZ 125)
"Live every week, like it's Shark Week"

Yea man, don't be afraid to give it a good spray..its sealed pretty good.  

It's good to use caution when washing, for sure. If you're talking about the pipe-to-cylinder connection, it's only springs and o-rings so don't go crazy with the power washer. The same goes for all joints around the engine. A good idea after washing is to fire the bike up and let it warm to operating temperature. This will evaporate any water that gets into the exhaust manifold between the pipe and the cylinder not to mention all the other tight spots.  
JZ

Invite your friends to the dirtrider.com forums and win free advice from Jesse (worth every penny).

That is not a stupid question at all.  
__________
"Every time I start thinking the world is all bad, then I start seeing some people out there having fun on motorcycles. It makes me take another look." -Steve McQueen

Man I aplaud you for even frequently getting in the mudd, as much as I love getting dirty, it is a PAIN to get mudd out of every nook and cranny on my bike, lol.  
********************
Arizona

(2001 YZ 250F)
(2002 YZ 125)
"Live every week, like it's Shark Week"

None should be able to get in at all at the exhaust/cylinder join.

 It will get in to the carb breather pipes if you are not careful and even using a wash cover on the air box it is best to fill the air boot with tissue as this will catch any drips that get in and stop them rolling down in to the carb.

 Use a plug for tail pipe or put a couple of disposable gloves over the end of it.

 When you wash the underside of the bike get a plastic tube about 5cm diameter and around half a metre long or more and tuck breather pipes inside it and just lay the other end on the ground.this stops any water going up the pipes.  

That is a great question, I was kinda wondering the same things.
Nice Thread!!!  
Patrick
1989 Cr250r.

Sorry, Goose, but it's time to buzz a tower.

Mount Hope, Kansass