[Fot] Sputtering TR question
Duncan Charlton
duncan.charlton54 at gmail.com
Wed Jun 15 14:52:21 MDT 2011
With the help of several people, I've got this licked. Fuel pressure was set
too high (4 psi) for the H6 SUs. I adjusted that to 2.7 psi, installed leaner
needles and cranked the jets up to 8 flats from where they'd been found at 19
flats. Very good plug color now, no flat spots, and NO sputtering after
letting off the throttle and getting back on it again. Seat of the pants
suggests there has been a power gain in the midrange. Soft-mounting the carbs
does not appear to be necessary. Now to do some acceleration runs to optimize
ignition timing.
Thanks to all who contributed -- Michael P, Bob K, Tim M, Jim G, Jim E, Bill
B, Russ M, Irv K, Scott B, Chris, Tony, Kas, and especially Greg Solow, who
walked me through this off-group.
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