Jetting an SDG

My brother has an SDG and there is a nasty midrange bog, has any one tried jetting one of these? I've messed with the fuel screw to hardly any avail.

Anybody, any clues?

Mine would bog when shifting from 3rd to 4th, in the low RPM's and then pull real hard in the mid and high. I just had to move the needle.

which position worked for you?

Down one spot from stock...

thanks, i'll give it a try.

No problem... Also I've been running VP and it seems to be a lot happier. Hope it works out for ya.

It's not too hard to do. VP is a brand of race gas.

Ok, I've heard that it's not hard, but I don't know where to begin. Is there somewhere that I can find this info?

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