My HRC jet kit finally arrived. Now I can put the carbs back together. I'm looking for some jetting reccomendations for a starting point. (MC21) I'll be using HRC reed blocks with stuffers, and Tyga carbon reeds; stock exhaust and individual air cleaners. Tempature in Texas is normally about 90+ Deg. Farenhite and 90+ deg humidity at sea level. Need to know what mains, needles, and emulsion tubes to start with. Any help is appreciated.
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james
Its not how fast you go...Its how you go fast.
MC21 Rothmans
RS250
RC31
CRF250X
748R
Porsche (many)
http://members.rennlist.com/j911brick/rennlist3_002.htm

I found the section on the website so I think I have it pretty well sorted out now. Suggestions still welcome.
_________________
james
Its not how fast you go...Its how you go fast.
MC21 Rothmans
RS250
RC31
CRF250X
748R
Porsche (many)
http://members.rennlist.com/j911brick/rennlist3_002.htm

With my setup, I started at 200's and worked down. At the last dyno session I went to, with (I think) 190's in, the engine made 45 horsepower, and a change of just one jet size jumped it to 51, so it is quite surprising how much difference a small change can make.

Get the mains and top end right, then muck about with the needle to clean up the mid range.
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BMW F800GS Bumblebee
Triumph 9551 Daytona Big boys toy
FJ1100 Sporting relic
GTS1000 oddball



Last edited by Dave Ett on Sat Jun 24, 2006 8:35 am; edited 1 time in total

Thanks Dave. I went with the 185/188 mj, 2bb needle, and 40 sj.
_________________
james
Its not how fast you go...Its how you go fast.
MC21 Rothmans
RS250
RC31
CRF250X
748R
Porsche (many)
http://members.rennlist.com/j911brick/rennlist3_002.htm