Yohsi Stage one cams.............

VeetyR · Post by **VeetyR** » Thu Aug 30, 2007 9:58 am

Anybody got these babies in their storm?

how much extra oooomph do they give?

Was it easily done?....were any other mods required?

any info would be great.

Thx VeetyR(john'o)

Kitch · Post by **Kitch** » Thu Aug 30, 2007 12:01 pm

A guy I've spoke to in the US deals in these.

I don't see how it's worth it actually.

Unless you're fitting a full exhaust system, air box, fuel jetting and full race set up, its not gonna make a noticeable difference.

Still, awfully nice bling and definitely good for a few more ponies.

If you have the splash cash spare, why not?

mik_str · Post by **mik_str** » Thu Aug 30, 2007 12:43 pm

I picked up a set for a good price on eBay and my bike is currently off at my dealer having them installed (along with ported and decked heads). I too had been trying to find someone who tried them and only came up with one chap (on the Micapeak registry) from Western Canada who had them and liked them. I contacted Yoshimura USA and had them send me a dyno sheet to see the results. It showed a decent increase from the mid-range on up. I then called the Yosh USA office and told them I was looking more at mid-range improvement and the tech recommended I advance the intake cam by 2-3 degrees in order to move the power down the rpm range a bit (lobe centre at 106 deg instaed of the called for 108). I will be getting the bike back in the coming days but as the cams will be part of the package I won't be able to comment on their effect alone. The general consensus from what I've read is that cams alone don't do too much but help quite a bit when combined with other mods (upping the compression ratio, gas flowed heads, full exhaust). Hope this helps.

VeetyR · Post by **VeetyR** » Fri Aug 31, 2007 7:36 am

hmmm....doesnt sound like i will be going ahead then.....I have the cash to buy the cams from TTS...Â£427.....and I know someone who can fit them but if its not going to be a noticable difference without making other mods i think i would rather spend the money on suspension set up as i think this would benefit me and the bike more than 5-10 ponies i prob aint gonna use anyways.

Thx for the info tho guys.....helped me make my decision anyway.

now wheres rogers number?

Post by **kevg** » Fri Aug 31, 2007 8:22 am

is that getting the cams fitted or just for buying them....here's the guy on ebay in japan i've bought a few bits off, postage takes about 4 days and never had a problem....and the cams are $625...or Â£312.

http://cgi.ebay.com/ebaymotors/Moriwaki ... 0155078226

but as you say getting the suspension sorted would be a better benefit to you and the bike...lol.

Post by **sirch345** » Fri Aug 31, 2007 9:46 pm

I agree John'o, getting the suspension up-graded would be more beneficial in the real world

And as you say Roger at Revolution is your man

Chris.