SV650.org - SV650 & Gladius 650 Forum - View Single Post - So to dispel a few myths about big bore SV's

northwind · 02-11-06, 05:41 PM

Another thing, which I meant to mention

is on piston slap. James Holland of JHS says this:

"Been there - seen it - done it - got the t-shirt !
We have probably done more big bores on the sv650 than all the other so called sv650 tuners worldwide put together.
If you build a motor and use a Wiseco shelf stock CK114 piston kit, sooner or later they will start to clatter at tickover ! it's in the nature of the piston design.
That's not to say they are not good value for money though !
jh
www.jhsracing.co.uk"

"It's in the overall piston design, just get a stock sv650 piston side by side with a ck114 piston and all will be shown to you, if you know what you are looking at.
A clue would be ring design to start with?
jh
www.jhsracing.co.uk"

Now, I make no secret of not being a JHS fan. But you can't deny he's built a lot more 700cc bikes than just one. Me, I'd sooner trust SV650racer but that's by the by.

02-11-06, 05:41 PM	#12
northwind Moderator Mega Poster Join Date: Jan 2004 Location: In the garage where I belong Posts: 17,083	Another thing, which I meant to mention is on piston slap. James Holland of JHS says this: "Been there - seen it - done it - got the t-shirt ! We have probably done more big bores on the sv650 than all the other so called sv650 tuners worldwide put together. If you build a motor and use a Wiseco shelf stock CK114 piston kit, sooner or later they will start to clatter at tickover ! it's in the nature of the piston design. That's not to say they are not good value for money though ! jh www.jhsracing.co.uk" "It's in the overall piston design, just get a stock sv650 piston side by side with a ck114 piston and all will be shown to you, if you know what you are looking at. A clue would be ring design to start with? jh www.jhsracing.co.uk" Now, I make no secret of not being a JHS fan. But you can't deny he's built a lot more 700cc bikes than just one. Me, I'd sooner trust SV650racer but that's by the by. __________________ "We are the angry mob, we read the papers every day We like what we like, we hate what we hate But we're oh so easily swayed"