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valve problem
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crx450r
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Joined: 01 Dec 2009
Posts: 134
PostPosted: Wed May 18, 2011 7:04 pm Post subject: valve problem Reply with quote Back to top
don't know if this is just a crf 450 problem or whether the trx have it too
the intake valves go out of spec real fast i've done a bit of research
and found the seat wear and valves stretch apparently
has any one had this problem??
if so what did you do to rectify the problem??
i was going to get one of these replacement heads but id like some other options
http://www.ebay.com.au/itm/New-CRF450-Head-assembled-w-Beryllium-seats-Ti-Valves-/370509692653?pt=Motorcycles_Parts_Accessories&hash=item5644193eed
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TRX 400 ex 2005/crf450r 2004 Hybrid
13:1 moose racing piston
ported and polished head
 
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Linc
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Joined: 17 Feb 2006
Posts: 999
PostPosted: Wed May 18, 2011 7:50 pm Post subject: Reply with quote Back to top
CRF has Ti valves and the TRX has stainless steel........
 
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crx450r
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Joined: 01 Dec 2009
Posts: 134
PostPosted: Thu May 19, 2011 9:40 am Post subject: Reply with quote Back to top
i thought as much
o well time to start saving some $$$$
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TRX 400 ex 2005/crf450r 2004 Hybrid
13:1 moose racing piston
ported and polished head
 
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PeteW
Moderator


Joined: 09 Feb 2006
Posts: 1877
Location: Doreen, Vic
PostPosted: Thu May 19, 2011 10:58 am Post subject: Reply with quote Back to top
thats about the only way mate, you'll need to get better valves and if you go for stainless then you need different springs too.
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crx450r
Blaster class


Joined: 01 Dec 2009
Posts: 134
PostPosted: Fri May 20, 2011 9:53 am Post subject: Reply with quote Back to top
the department of war and finance said i might ba able to do a stroker whist i'm on the job
_________________
TRX 400 ex 2005/crf450r 2004 Hybrid
13:1 moose racing piston
ported and polished head
 
View user's profile Send private message
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