Go Back   Motorcycle Forum > Motorcycle.Com General Discussion > Motorcycle Mods and Maintenance

Reply
 
Thread Tools
Old 10-04-2009, 06:40 PM   #1
fermachuco
Registered Member
 
Join Date: Oct 2009
Posts: 1
Post How often have to change the piston set?

I just bought a CRF450R 2008, and i read in the Owner's Manual that i have to change the piston set every 15 Hour.

I'm doing off-road, so i'm not using the throttle all the way. Beside that i read in the CRF450X Owner's Manual and there are two Maintenance Shedules, one for off-road and one for competition. The one for off-road doesn't have any piston set replace shedule, and the competition shedule says the 15 hour replacement.

So, how often do I have to change the piston set?
fermachuco is offline   Reply With Quote

Sponsored Links Remove Advertisements
Motorcycle Forum
Advertisement
Old 10-04-2009, 09:03 PM   #2
The_AirHawk
Founding Member
 
The_AirHawk's Avatar
 
Join Date: Jun 2007
Location: Leanin' Tower O' P-P-P-P-POWAAAAAAAAA!!!!
Posts: 11,491
Default

Quote:
Originally Posted by fermachuco View Post
So, how often do I have to change the piston set?
Just before it siezes. If you replace it just after it siezes, you're too late.
__________________
Parfois, on fait pas semblant
Sometimes, it's not pretend
Oderint Dum Metuant
Let them hate so long as they fear
политики предпочитают безоружных крестьян
Politicians Prefer Unarmed Peasants
Nothing to see here, Citizen. Move along now...
The_AirHawk is offline   Reply With Quote
Old 10-05-2009, 05:54 AM   #3
pplassm
Founding Member
 
pplassm's Avatar
 
Join Date: Nov 2001
Posts: 3,875
Default

The maintenance schedule is set for a competition environment. You can probably comfortably stretch piston life to 50 hours.

Probably.
__________________
Mongo just pawn in game of life.
pplassm is offline   Reply With Quote
Old 10-05-2009, 05:58 AM   #4
seruzawa
The Toad

 
seruzawa's Avatar
 
Join Date: Nov 2001
Location: 8501 ft.
Posts: 17,461
Default

Quote:
Originally Posted by pplassm View Post
The maintenance schedule is set for a competition environment. You can probably comfortably stretch piston life to 50 hours.

Probably.
Are you sure? If you ride a bike hard it doesn't matter if it has a number plate on it or not.
__________________
"Make no mistake, Communism lost a big argument - one we know today as the 20th century."
seruzawa is offline   Reply With Quote
Old 10-05-2009, 06:56 AM   #5
sarnali2
Aging Cafe` Racer

 
sarnali2's Avatar
 
Join Date: Jun 2007
Location: Sittin' down by my window, lookin' at the rain.
Posts: 8,719
Default

When did dirt bikes go from being almost indestructable to fragile as christmas balls?....
__________________
"Carpe` Throttelum -Loud Suits Save Lives"

"He said he's farting because of his medication"...
sarnali2 is offline   Reply With Quote
Old 10-05-2009, 09:40 AM   #6
pplassm
Founding Member
 
pplassm's Avatar
 
Join Date: Nov 2001
Posts: 3,875
Default

I see 50 hour CRF450's all the time. Still running well, if not as strong as new.
__________________
Mongo just pawn in game of life.
pplassm is offline   Reply With Quote
Reply


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off