Blink-182

Member
Feb 2, 2008
127
0
ok so i just got done rebulding my yz85 today new topend gasket set all that stuff i was riding it all good and dandy until i decided to jet it pretty much close to spot on as i could when switched to a 45 pilot it was wicked and then when i went to a 42 i loved the band even more but just recently out of know where it started to leak out the weep hole on the water pump and i read around here and i found out that when i start the bike without the cap on it swirls and all that but it has bubbles in it does that mean my gaskets up top blew?
 

IndyMX

Crash Test Dummy
~SPONSOR~
Jul 18, 2006
5,548
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Amo, IN
That bike uses a rubber o-ring for a head gasket.. Simple fix...

Plus, you might want to have a look at the water pump seal.
 

Blink-182

Member
Feb 2, 2008
127
0
yeah the top end gasket kit it came with them and i put white linthum grease on them and installed them it worked fine until about an hour of riding i broke it in properly too just like eric gorr reccomends
 

Blink-182

Member
Feb 2, 2008
127
0
it had came with a little slip that said they needed to be greased with lintuhum or what ever its called but just for the o rings? im about to take it apart right now, what could have caused this?and does it automatically damage your top end?
 

Blink-182

Member
Feb 2, 2008
127
0
oh yeah forgot to put that i tourqed it to spec and in a criss cross pattern like the manual says but i just dont get what i did wrong?should i go ahead and tear down the head ?
 

Blink-182

Member
Feb 2, 2008
127
0
is the radiator sapoused to bubble like that? it only starts to leak when its warm not cold if that helps any? im thinking of just getting new o rings and a water pump
 

Blink-182

Member
Feb 2, 2008
127
0
IndyMX said:
That bike uses a rubber o-ring for a head gasket.. Simple fix...

Plus, you might want to have a look at the water pump seal.
another thing the top end gaskets it came with where just kind of like round the stock ones on the bottem had a flat surface and thats how you installed them could i have used the wrong gasket?
it is a gasket set for a 2002-2005 yz85?, but im going to get the stock head gaskets from bike bandit, when i tear down the water pump whats useally a FULL rebuild for it? i dont want it to fail or something again because i didnt replace something i didnt know i was sapoused too?
 
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Blink-182

Member
Feb 2, 2008
127
0
ok i found out what the problem is i took off the side cover and took off the impellar shaft and its all worn down it has grooves and scuffing everywhere im guessing my bearing went out?
 
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