[Turbo]

Can some one tell me the stock lobecenter on a -99

// Turbo:fact

 

[martinc]

what do you want exactly?

i think that you"re not asking the right question here as the only answer would be...the center!

so,you want to know tdc or bdc?(top dead center or bottom dead center)

any of these 2 can be found in the manual workshop,page 145 through 153)

here are 2...

 

[martinc]

second...i dont think that is what you need though...

 

[ChampionR1]

Heres an article that may help you out:

http://www.muzzys.com/articles/lobe_centers.html

 

[martinc]

like i said!

anyways,if what you are looking for is amount in degrees of openign of the ex and in cams,yamaha is not really carefull about this...we"ve seen examples ranging between 106 to 108 in and 96 to 98 ex.

 

[Turbo]

Thank you ChampionR1 and martinc these are the numbers I am looking for. Do you know if Yamaha has any exact numbers fore intake and exhaust cam. I think this could be the reason why there is a deferens in engine power, what do you think? I think these whit high lob center has more power on top?

I only have a little experience whit lob center numbers on turbo bikes, and it makes a big difference on the engines behavior.

//Turbo

 

[martinc]

check out for topic #1...if that"s what you"re looking for!

http://borg20012.tripod.com/service_sectiona.htm

 

[Turbo]

Thank you! that’s great info

//Turbo