dbw - dirtbikeworld.net Members Forums

Go Back   dbw - dirtbikeworld.net Members Forums > Manufacturers > Yamaha Forum

Yamaha Forum For the True Blues.

Reply
 
Thread Tools Display Modes
  #1  
Old 19-07-2011
toey1977's Avatar
toey1977 toey1977 is offline
dbw Factory Pro
 
Join Date: Aug 2010
Location: Traralgon Victoria
Posts: 799
big bore kits wr450

anyone know of or where is a good place to buy a big bore kit for my WR450f, reason being it might need a head gasket, if i am going to do that i may as well chuck some new rings in there. I was told what I think is a reasonable price to do the job but being bored and on ebay I cam e across this, the price seems real good but I don't know of anyone that has one or knows about these ones. any help would be great

http://cgi.ebay.com.au/ws/eBayISAPI....=STRK:MEWAX:IT

now i know my rings are still good but if I am going to replace them the shop wasn't stressed about a new piston as i would be or a hone, when i seen this i thought good price and i get to keep my original bore and piston rings as a spare
__________________
WR450F 03Ego bark busters, B&B radiator guards, B&B bash plate, Tag tapered bars, Scar foot pegs, jetted and dynoed, 1 industries sticker kit
Imprezzive Customz
1994 Rgv 250 (wipper sniper on steroids)( fortune on fines)
1984 Xl250rc (always reliable, never missed a beat, how Honda's used to be)
1978 DT250 (piece of crap)
Reply With Quote
  #2  
Old 19-07-2011
CentralCoastWaz CentralCoastWaz is offline
dbw Factory Pro
 
Join Date: Sep 2010
Location: Central Coast NSW
Posts: 823
Looks the goods to me. I couldn't resist at that price. By the time you freshen up the top end of yours and get a gasket kit you won't be getting much change out of $200 and then it's still standard.
Reply With Quote
  #3  
Old 20-07-2011
Race58's Avatar
Race58 Race58 is offline
dbw Pro Legend
 
Join Date: Sep 2010
Location: At The Beach
Posts: 1,510
Quote:
Originally Posted by toey1977 View Post
anyone know of or where is a good place to buy a big bore kit for my WR450f, reason being it might need a head gasket, if i am going to do that i may as well chuck some new rings in there. I was told what I think is a reasonable price to do the job but being bored and on ebay I cam e across this, the price seems real good but I don't know of anyone that has one or knows about these ones. any help would be great

http://cgi.ebay.com.au/ws/eBayISAPI....=STRK:MEWAX:IT

now i know my rings are still good but if I am going to replace them the shop wasn't stressed about a new piston as i would be or a hone, when i seen this i thought good price and i get to keep my original bore and piston rings as a spare
Post up if you go ahead, I 'd love to know what its like
__________________
IF IT AINT BROKE, FIX IT TILL IT IS!
I ride to have fun, and 2T is fun, scary fun sometimes, but fun..............
Reply With Quote
  #4  
Old 20-07-2011
nitro circus nitro circus is offline
dbw Pro
 
Join Date: Dec 2004
Posts: 446
go bigger

http://www.maxrpms.net/shop/index.ph...-ice-cube.html
Reply With Quote
  #5  
Old 20-07-2011
CentralCoastWaz CentralCoastWaz is offline
dbw Factory Pro
 
Join Date: Sep 2010
Location: Central Coast NSW
Posts: 823
Quote:
Originally Posted by nitro circus View Post
After looking at the face under the helmet on that ad, I have decided I need to look for new riding buddies. Mine don't look like that.
Reply With Quote
  #6  
Old 20-07-2011
gizmoe gizmoe is offline
dbw Pro Legend
 
Join Date: Nov 2006
Location: western qld desert
Posts: 1,184
atvunlimited is where I purchased my Athena kit for the Ag bike a few years ago now.

I have heard good things about the cylinderworks kits & the occassional bad comment, but any problems people have maybe due to incorrect installation or not checking everything before they fit the kit.

Atv sells the cylinder works kit so maybe ask why the cost difference?

http://stores.ebay.com/ATVUNLIMITED/...=p4634.c0.m322

Personally I would stick with Athena as for me its a known quality item.
Reply With Quote
  #7  
Old 11-06-2018
normanator27 normanator27 is offline
dbw Pro Legend
 
Join Date: Jan 2013
Location: paradise
Posts: 1,090
Reviving an old thread here but I'm wondering if anyone here has put one of these on their 450? My 2012 model wr is around the 10000km mark and I was thinking of refreshing the top end and thought I'd change it up a bit. More torque down low will suit my style of riding I think (old, fat, slow ). Will this affect reliability though?? Any thoughts on other pro's and cons??

https://www.firestormmotorcycles.com...-98mm-b~164453
__________________
I love dirtbikes!!
Reply With Quote
  #8  
Old 11-06-2018
Nutty's Avatar
Nutty Nutty is offline
The "One" and only
 
Join Date: Apr 2006
Location: Shoalhaven NSW
Posts: 11,535
I wouldn't put an Athena kit in my mower Normie.

A set of YZ cams and a good tune will give you all the pull you want. The factory team pissed around with big-bore 450s for years and they're still not super-reliable, despite the Finke bikes going OK.

We used a JGR built 65HP motor to jump San Diego harbour and the concensus at Coach's shop was that the engine architecture couldn't support a bigger bore. Admittedly we were concerned with the riders life, not pissing around on trails.

Keep it stock. DT1 filter frame, Stage 2 HotCams, pipe and a tune. It'll cause you Waaaaaay less grief than an overbore.
__________________
"Ain't no use in waking if your dreaming's done" : Pigram Bros.

Current dirtbikes: 2018 450SX, 2018 YZ250-FX
Current road bike: 2011 FLHRC-Police spec
Reply With Quote
Reply

Thread Tools
Display Modes

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

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Big Bore Ride - January 16th Hammer456 Dual Sport Motorcycle Riders Assoc. 0 14-12-2010 10:20 PM
125 and big bore kit fredgreen General Bike Related Discussion 7 05-11-2010 01:33 PM
athena big bore kit billy203 Tech Talk 3 28-03-2010 09:52 AM
250/280f big bore jetting lance General Bike Related Discussion 1 03-03-2009 08:10 PM
KLX Big Bore Kits IanS Kawasaki Forum 23 30-09-2003 03:00 PM


All times are GMT +11. The time now is 01:25 AM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2018, vBulletin Solutions, Inc.