R&B designs, NO MORE gas gas mods?

[Moto7man]

Originally Posted by Zrt1200

LOL.

That darn Pumpkin Kult is always causing trouble.

[thejackrabbit]

I was thinking what could be the difference between a gasgas carb and any other brand 2 stroke carb, then I read about receiving dirty carbs.. When I sent my kdx parts to him in 2013 i made sure these were spotless lol. The work he does is fantastic

[motopsycho87]

Gasgas heads are difficult to machine?!

[Zman]

Since RB is no longer performing this service, can anyone provide specific details on how to best modify the GG heads? It sounds like there is more to it that just cutting the head mounting face for a 1mm +/-0.2mm squish and sometimes opening the dome for a compression ratio to match the fuel octane.

[risk74]

If he no longer wishes to do Gas Gas, perhaps it is time to remove his ad from this site?

Just a thought.....

[webmaster]

Originally Posted by risk74

If he no longer wishes to do Gas Gas, perhaps it is time to remove his ad from this site?

Just a thought.....

Done.

thanks,
jeff

[motopsycho87]

Originally Posted by Zman

Since RB is no longer performing this service, can anyone provide specific details on how to best modify the GG heads? It sounds like there is more to it that just cutting the head mounting face for a 1mm +/-0.2mm squish and sometimes opening the dome for a compression ratio to match the fuel octane.

Is there?

[(F5)]

Originally Posted by Zman

Since RB is no longer performing this service, can anyone provide specific details on how to best modify the GG heads? It sounds like there is more to it that just cutting the head mounting face for a 1mm +/-0.2mm squish and sometimes opening the dome for a compression ratio to match the fuel octane.

Gee, if only someone had I dunno, posted a picture of an (with slightly alternative grooves) example and offered service to do it early in the thread, say, the first page, and maybe just a bit below someone posted a link to a whole post on how to do it. , well the world would be a fine place.

[Zman]

..................

If only!

Nice write up and homework!

Do we know how that compares to the RB head?

[motopsycho87]

Trying not to be as dry as F5, but there won't be much difference. If we were discussing porting, expansion chambers, or even different squish areas then things could be vastly different. But RB has stuck with the 50% area formula, and a large radius in the combustion chamber, that's as similar as you are going to get!