October 26th, 2016, 09:20 AM | #1 |
ninjette.org guru
Name: Chris
Location: Bristol, UK
Join Date: Feb 2016 Motorcycle(s): ZZR250, VFR800 Posts: 478
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Crankcase opening dimensions needed ?
Hi Guys,
Does anyone have a 250 crankcase minus its block at the moment that they could measure for me ? I need the width of the cylinder base openings left the right & front to back, I assume both sides are the same. Plus I need the web thickness between the holes. if anyone happens to have a 250 piston complete with rings & wrist pin that they could weigh accurately it would be appreciated. I have found a note somewhere that they are around 167grams complete, just need that confirmed. Thanks Chris. Last futzed with by Mohawk; October 26th, 2016 at 10:33 AM. |
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October 26th, 2016, 12:53 PM | #2 |
KAWASAKI GURU
Name: Shawn
Location: Florida
Join Date: Jul 2013 Motorcycle(s): Turbo Ninja 250 Posts: 863
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will any measurements from a 08-12 engine help you?
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October 26th, 2016, 02:48 PM | #3 |
ninjette.org guru
Name: Chris
Location: Bristol, UK
Join Date: Feb 2016 Motorcycle(s): ZZR250, VFR800 Posts: 478
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I believe the crank cases are the same on the pre-gen & next-gen, so yes that should be fine. Thanks
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October 29th, 2016, 03:23 PM | #4 |
ninjette.org guru
Name: Chris
Location: Bristol, UK
Join Date: Feb 2016 Motorcycle(s): ZZR250, VFR800 Posts: 478
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Bum, any joy with the Tahoe measure ?
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November 20th, 2016, 09:17 PM | #5 |
ninjette.org member
Name: Kamil
Location: Staten Island, NY
Join Date: Aug 2016 Motorcycle(s): 2004 ninja ex250, 1996 Honda cbr900rr Posts: 31
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I'll see if I can be of assistance
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November 21st, 2016, 12:30 AM | #6 |
ninjette.org guru
Name: Chris
Location: Bristol, UK
Join Date: Feb 2016 Motorcycle(s): ZZR250, VFR800 Posts: 478
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November 25th, 2016, 08:13 AM | #7 |
ninjette.org guru
Name: Chris
Location: Bristol, UK
Join Date: Feb 2016 Motorcycle(s): ZZR250, VFR800 Posts: 478
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BUMP
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December 6th, 2016, 11:27 AM | #8 |
ninjette.org sage
Name: bruce
Location: northern illinois
Join Date: Jan 2012 Motorcycle(s): Race bikes:08 Ninja 250,11 R6,16 ZX6,SV650.3 HD-1947,2-2003,2010. 1946 Indian and a lot of dirt bikes.2 Posts: 999
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December 6th, 2016, 12:43 PM | #9 |
ninjette.org guru
Name: Chris
Location: Bristol, UK
Join Date: Feb 2016 Motorcycle(s): ZZR250, VFR800 Posts: 478
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yes please
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December 9th, 2016, 10:03 AM | #10 |
ninjette.org guru
Name: Chris
Location: Bristol, UK
Join Date: Feb 2016 Motorcycle(s): ZZR250, VFR800 Posts: 478
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Come on you teasers, someone must have one in bits. Also need the thickness of the bridge between crankcases.
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December 17th, 2016, 02:56 AM | #11 |
ninjette.org guru
Name: Chris
Location: Bristol, UK
Join Date: Feb 2016 Motorcycle(s): ZZR250, VFR800 Posts: 478
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Bump
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December 17th, 2016, 01:21 PM | #12 |
ninjette.org sage
Name: bruce
Location: northern illinois
Join Date: Jan 2012 Motorcycle(s): Race bikes:08 Ninja 250,11 R6,16 ZX6,SV650.3 HD-1947,2-2003,2010. 1946 Indian and a lot of dirt bikes.2 Posts: 999
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1 out of 1 members found this post helpful. |
December 17th, 2016, 02:01 PM | #13 |
ninjette.org sage
Name: bruce
Location: northern illinois
Join Date: Jan 2012 Motorcycle(s): Race bikes:08 Ninja 250,11 R6,16 ZX6,SV650.3 HD-1947,2-2003,2010. 1946 Indian and a lot of dirt bikes.2 Posts: 999
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1 out of 1 members found this post helpful. |
December 18th, 2016, 01:19 AM | #14 |
ninjette.org guru
Name: Chris
Location: Bristol, UK
Join Date: Feb 2016 Motorcycle(s): ZZR250, VFR800 Posts: 478
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Hi Bruce, thanks for those, much appreciated.
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December 20th, 2016, 10:51 AM | #15 |
ninjette.org guru
Name: Chris
Location: Bristol, UK
Join Date: Feb 2016 Motorcycle(s): ZZR250, VFR800 Posts: 478
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So as I suspected, my new big bore liners will need a little metal removed from the left & rights sides where the liner cutouts are, but loads of room front to rear.
Thanks for the complete pisyon weight too. My big bore ones will weight 180 grams complete, (132gm bare), so 20 grams up on stock, but still lighter than the JE (139gm bare) or Wiseco (152gm bare) versions, which appear to work with stock rods. Anyone know how deep the cylinder cut outs are in the side walls of the crankcase ? By that I mean from the top gasket face to the bottom of the scolloped area. |
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December 22nd, 2016, 09:52 AM | #16 |
ninjette.org guru
Name: Chris
Location: Bristol, UK
Join Date: Feb 2016 Motorcycle(s): ZZR250, VFR800 Posts: 478
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Just an avatar test
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December 23rd, 2016, 11:11 AM | #17 |
ninjette.org sage
Name: bruce
Location: northern illinois
Join Date: Jan 2012 Motorcycle(s): Race bikes:08 Ninja 250,11 R6,16 ZX6,SV650.3 HD-1947,2-2003,2010. 1946 Indian and a lot of dirt bikes.2 Posts: 999
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how big are you boring this engine?
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December 23rd, 2016, 12:50 PM | #18 |
ninjette.org guru
Name: Chris
Location: Bristol, UK
Join Date: Feb 2016 Motorcycle(s): ZZR250, VFR800 Posts: 478
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66mm for 282cc using ZZR600 liners but having had them fitted to a spare block, then discovered the 250 liner is narrower at the bottom.
So thanks to your help, I now know I need to widen the cutouts slightly left to right, but they are fine front to rear. Then I remembered that the new liners are 3mm taller than the 250's so need to know if I need to trim the length ! |
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December 25th, 2016, 12:07 AM | #19 |
Participant
Name: Dave
Location: South of Seattle
Join Date: Oct 2012 Motorcycle(s): '94 K75 std Posts: Too much.
MOTM - Aug '15
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Your avatar pic looks just like your profile pic.
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December 27th, 2016, 05:24 PM | #20 | |
ninjette.org sage
Name: bruce
Location: northern illinois
Join Date: Jan 2012 Motorcycle(s): Race bikes:08 Ninja 250,11 R6,16 ZX6,SV650.3 HD-1947,2-2003,2010. 1946 Indian and a lot of dirt bikes.2 Posts: 999
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Quote:
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1 out of 1 members found this post helpful. |
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