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Latest issue of Rolling -- ps: 120-130

posted by  Phil S. on  Mon Sep 20 12:02 CST 2004
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last visit: Fri Oct 24 13:18 CST 2014
[RELATED]

I don't have a history of all the changes I've made, but here's what's in there now:

-------------------------
Stock B20E with 45DCOEs and no stacks (ugh!):

4.5 aux venturis
34mm main venturis (chokes)
50F9 low speed jets
F15 emulsion tubes
135 main jets
160 air correctors
55 pump jets
-------------------------

MPPE with 48 DCOs and B I G, l--o--n--g stacks:

5.0 aux vents
42mm chokes
55F8 low speed (not right yet -- wants 50F somethings)
F2 emulsion tubes
180 main jets
195 air correctors (also suspect for the moment)
100 pump jets
-------------------------

So, there's two B20s that tune completely differently. My results are worthless for anyone else... even for the stock motor. If it had different manifolds and/or stacks of some sort, the jetting would be substantially different.






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