Piston Weight - Yamaha Raptor Forum
LinkBack Thread Tools Display Modes
post #1 of 5 (permalink) Old 11-30-2009, 08:18 PM Thread Starter
Senior Member
wobble's Avatar
Join Date: Feb 2007
Location: Vancouver, WA
Posts: 3,302
Piston Weight

Weights stated below include piston, rings, clips, and wrist pin.

Stock piston setup is 535-540 grams

JE 12.5:1 102mm = 487.7 grams
JE 10.75:1 105.5mm = 490 grams
JE 12:1 105.5mm = 506.8 grams
Venom 14.25:1 105mm = 521 grams
CP 11:1 102mm = 524.9 grams
CP 12:1 105mm = 533 grams
Wiseco 11:1 103mm = 535.4 grams
CP 11:1 102mm (corrected deck height) = 545 grams
RE 14:1 102mm Lightweight = 545 grams
CP 13:1 105mm = 554-559 grams
RE 14:1 105mm Lightweight = 575-579 grams
Barkers Diamond 14:1 105mm = 596 grams

Last edited by wobble; 07-30-2010 at 09:55 PM.
wobble is offline  
Sponsored Links
post #2 of 5 (permalink) Old 12-02-2009, 09:43 PM
Join Date: Jun 2008
Posts: 86
Good info... Can you run a CP 11:1 102mm on pump gas and with a HC3

2008 Raptor 700:
Yoshi RS7 full sys
Hot Cam stage 3
Weisco 11:1 piston
PC5 w/ Auto Tune
Pro Design intake
K&N Filter w/prewrap, 40 tooth rear sprocket, ProTaper Contour fat bars "mid bend", ODI Grips, GYTR heel gaurds, GYTR Nerfs, GYTR Front grab bar
theidbreder is offline  
post #3 of 5 (permalink) Old 12-02-2009, 10:45 PM
dl700's Avatar
Join Date: Oct 2007
Location: Oregon, Junction City
Posts: 2,971
Originally Posted by theidbreder View Post
Good info... Can you run a CP 11:1 102mm on pump gas and with a HC3
yes, we do it all the time..
the cp 11:1-11.5 are both a good base for building a nice stock bore pump gas bike

Cuervo Racing 951-743-6328
Email/PAYPAL: [email protected] ********** www.Cuervo-Racing.com
MONSTER, FCI, 47 54/58 Throttle bodies, trail, dune, Race PORTING,
5050 5150 Camshafts, CP Big bore, Stroker cranks, Swingarms,Drag Race and custom parts
dl700 is offline  
post #4 of 5 (permalink) Old 12-04-2009, 11:03 PM
Senior Member
Join Date: Aug 2008
Posts: 144
Originally Posted by dl700 View Post
yes, we do it all the time..
the cp 11:1-11.5 are both a good base for building a nice stock bore pump gas bike
I'll soon be tearing into mine during the winter. Mine gets mx duty. I'm looking to build this thing to keep up with those pesky 450s, so would a stock bore build be best for me or should I move up in size some? I need most of my power in the 3rd-4th gear range.

2008 Raptor 700 gytr special edition DMC dual exhaust,dmc fuel controller,k&n/ebay intake setup, Hotcam stage II,Houser lt a-arms,Elka lt shocks,Flexx bars,Laeger stem with antivibe clamp Precision Stabilizer,Tusk pro nerfs,Hiper front beadlock wheels with Holeshot mxr6 tires, holeshot mxr4 rears on hiper dual beadlock wheels,Rock axle, ASV levers/clamp,ODI clamp on grips,Tusk handguards,Blingstar DC front bumper,Proarmor pro race grab bar
Slowprocess is offline  
post #5 of 5 (permalink) Old 10-08-2018, 12:50 AM
Junior Member
Join Date: Oct 2018
Posts: 4
Good and informative post, thanks for sharing
Freddie is offline  

Quick Reply

Register Now

In order to be able to post messages on the Yamaha Raptor Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Similar Threads
Thread Thread Starter Forum Replies Last Post
Piston weight differences lms1977 Raptor 700 Modifications 5 10-13-2014 11:03 AM
Sand Stars weight, blue label weight. CG700 Raptor 700 Discussion 0 02-26-2011 12:47 AM
Piston weight and effect on crank/piston balance wobble Raptor 700 Modifications 22 04-22-2010 08:40 PM
weight of 105mm cp piston lorie Raptor 660 Modifications 2 11-10-2009 10:51 PM
Stock wheel weight? Diddly Raptor 700 Discussion 15 01-31-2008 08:06 AM

Posting Rules  
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome