A question for those with "stage 2" cams... - SV650.org

28-09-06, 03:07 PM

....did you have to change the jetting/carboration at all?

Just want to check before i arrange a dyno run

29-09-06, 08:55 AM

If you've got your jetting right now, then you shouldn't need to alter it after the swap. All it does is allow more of the same mix in. Mine was fine.

northwind · 29-09-06, 09:42 AM

So, you think you can ask questions on SV Rider, with your sekrit alterego, then come swanning back over here and ask the same ones do you, you rat!

jambo · 29-09-06, 09:51 AM

Quote:

Originally Posted by northwind

So, you think you can ask questions on SV Rider, with your sekrit alterego, then come swanning back over here and ask the same ones do you, you rat!

All toghether now "Oooohhhhh"

TSM · 29-09-06, 09:56 AM

darn you with your stage 2 cams, i will only have stage 1 cams. Grrrrr, still a power increase.

NedSVS · 29-09-06, 05:54 PM

I had no problems with carburation (factory pro stage 2 kit) after doing my stage 2 cam swap. Incidentally, I love this mod and the way it improves the upper rev range. Only one very small downside, when I did a track day at Oulton Park I hit the rev limiter quite a lot

Not very often this happens on the road though.

29-09-06, 06:04 PM

There's a bit of luck involved with the cam swap as to where they are timed up from the factory, my bikes had various cams in it now and when using the 'marks' one set peaked at just under 9800 and the other set went to around 10000rpm, its better to get them dialed correctly by re-positioning the wheels on the cams.
The jetting wont be effected by the swap, as stated provided its good to start with

northwind · 29-09-06, 06:18 PM

Question for you Rob... How much would you expect to pay to get them properly set up? I've always presumed that the improvement wouldn't justify the price, but I just had a moment of clarity and realised I've never actually priced it up

29-09-06, 08:41 PM

Quote:

Originally Posted by northwind

Question for you Rob... How much would you expect to pay to get them properly set up? I've always presumed that the improvement wouldn't justify the price, but I just had a moment of clarity and realised I've never actually priced it up

Depends on the job really, dialling in a DOHC engine is time consuming, add in to that the extra calculation for the V-twin part and the pressed on wheels on the cams and whether you fit vernier's, Then if the engines in the bike its the setup of the dial guage etc all takes time.
I have not done it start to finish on an SV with the engine in the frame so would not like to even guess, Alot of it depends on the experience of the mechanic in where to start with settings.

JHS have done enough to have the data to press the wheels right first time, wheras your local tuner/builder that does allsorts of bikes may take a full day to do the same.

Cost wise its only really viable when every last hp is req or its part of a bigger tune ie race cams/vernier's with no std markings.

TBH my bike in its current spec seemed to have better topend with K3 cams in/ex as it held power for slightly longer, but lost a small amount of midrange

northwind · 29-09-06, 10:18 PM

Ah, so I was right then- it's better to be lucky than good

Thanks for that.

28-09-06, 03:07 PM	#1
svrash Guest Posts: n/a	A question for those with "stage 2" cams... ....did you have to change the jetting/carboration at all? Just want to check before i arrange a dyno run

29-09-06, 09:42 AM	#3
northwind Moderator Mega Poster Join Date: Jan 2004 Location: In the garage where I belong Posts: 17,083	So, you think you can ask questions on SV Rider, with your sekrit alterego, then come swanning back over here and ask the same ones do you, you rat! __________________ "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"

29-09-06, 09:56 AM	#5
TSM The Sick Man Mega Poster Join Date: Nov 2004 Location: Peckham.SE.LDN Posts: 4,768	darn you with your stage 2 cams, i will only have stage 1 cams. Grrrrr, still a power increase. __________________ OTR: KTM 690 Duke R 2015 Full Akro SIDELINE: Kwak ZX636 A1P 2002, Red, R&G's, Yoshi, Double Bubble Screen GONE: Kwak ZX-7R P1, Full Akro, Undertray, Screen GONE: SV650S K2 Very Bruised & Without Fairing, Motovation Frame Sliders, R&G Ally Sprocket Toe Protector, HEL 2 Line Setup, GSXR K1 600 RWU Forks, Barnett Clutch & Springs, Penske 8981 Shock, Gilles Ti Rearsets, Steel Barends, Scottoiler, AFAM Chain & Sprockets, Twin FIAMM Horns, Skidmarx Bellypan, Full Micron Zeta Steel System, Cut down undertay. Forum Problems & Information / Site Suggestions

29-09-06, 06:18 PM	#8
northwind Moderator Mega Poster Join Date: Jan 2004 Location: In the garage where I belong Posts: 17,083	Question for you Rob... How much would you expect to pay to get them properly set up? I've always presumed that the improvement wouldn't justify the price, but I just had a moment of clarity and realised I've never actually priced it up __________________ "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"

29-09-06, 10:18 PM	#10
northwind Moderator Mega Poster Join Date: Jan 2004 Location: In the garage where I belong Posts: 17,083	Ah, so I was right then- it's better to be lucky than good Thanks for that. __________________ "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"

29-09-06, 08:55 AM	#2
PeterM Guest Posts: n/a	If you've got your jetting right now, then you shouldn't need to alter it after the swap. All it does is allow more of the same mix in. Mine was fine.

29-09-06, 05:54 PM	#6
NedSVS Member Join Date: Mar 2005 Posts: 572	I had no problems with carburation (factory pro stage 2 kit) after doing my stage 2 cam swap. Incidentally, I love this mod and the way it improves the upper rev range. Only one very small downside, when I did a track day at Oulton Park I hit the rev limiter quite a lot Not very often this happens on the road though.

29-09-06, 06:04 PM	#7
Robw#70 Guest Posts: n/a	There's a bit of luck involved with the cam swap as to where they are timed up from the factory, my bikes had various cams in it now and when using the 'marks' one set peaked at just under 9800 and the other set went to around 10000rpm, its better to get them dialed correctly by re-positioning the wheels on the cams. The jetting wont be effected by the swap, as stated provided its good to start with

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