Intake Valve size?

[98valk]

anybody have the sizes of the intake and exhaust valves?

thanks

[old2soon]

P M Atticrat or bon s. Unless someone else chimes in. RIDE SAFE.

[Robert]

29 and 33 mm outside diameter all other specs in book.

[98valk]

29 and 33 mm outside diameter all other specs in book.

Thanks R.
do u know if any body has the rocker arm ratio to calculate valve lift?
I know webb cams list a lift but I don't know if that's stock or not.

[Robert]

PM  JeffK he will more than likely know the specs your looking for. He also had a set of heads with bigger valves in them awhile ago was going to get them but did my own heads since I had a whole motor I bought. Doing a little port and polish?

[John Schmidt]

PM  JeffK he will more than likely know the specs your looking for. He also had a set of heads with bigger valves in them awhile ago was going to get them but did my own heads since I had a whole motor I bought. Doing a little port and polish?

Robert, is that the motor you got from me? I'd be interested in what you're doing to it.

[98valk]

PM  JeffK he will more than likely know the specs your looking for. He also had a set of heads with bigger valves in them awhile ago was going to get them but did my own heads since I had a whole motor I bought. Doing a little port and polish?

just doing some calc's to see which cam is best for MPG.
I think the 49 state cams actually will give better mpg than the emission cams which actually are causing internal EGR per the spec's. Internal EGR in a non-computerized vehicle just doesn't work since a perfect ignition system with antiknock and variable camshaft timing is required to gain mpg and power.
my bike has the calif emissions cams its a 49 state '98. I am getting great mpg but I'm using a lot of ignition advance also on the hwy.
there is a school of thought that more TQ at the low RPMS will give better MPG, hence using a non-calf cam. one of the first '97 valk magazine review actually recorded 35-37 avg mpg with a high of 41. of course when they were running hard they got a low with 29mpg.