Ok to bring us up to date
Wed 15th May
MJ; 185
MAJ; 1.5
Needle K58 special
Clip; 4
PJ; 35
Slide: /50
FS; 1.5 turns
first ride of the day and excellent except a little dry spot at 2mm of opening.
needle C4 to C5 - see if I can't get rid of it.
test; now has a double stutter, worse!
C5 to C3 and FS happy ay 1 turn out but will stall if all-the-way-in (as it should)
test;
no report (probably still has dry spot at 2mm of throttle)
PJ; 35 to 38. FS = happy at 1-1.5 turns.
did a test of checking the popping on the overrun and less at 1.5 turns than at 1 turn.
PJ; 38 to 40. FS happy at 1 turn again.
test;
hesitancy back again, large overrun single pops. rich somewhere!
Thu 16th May
first run, excellent bar 2mm dry spot.
PJ40 big drop past 38 and 35 to 33. the leanest! FS happy at 1 turn.
test; lot better at 2mm.
needle C3 to C1
If you snap the throttle and miss it, it never catches up, but if you snap the throttle it's a monster. midrange affected (poorer) but the top end in 4th and 5th loved it.
which do i raise to make sure I don't miss the nsnap?
PJ; 33 to 35. FS happy at 1.5 turns.
test; lovely snap! not quite nice higher.
Needle C1 to C2 (richer)
test; midrange back. bang on. no surging, no turbo, no two stage, no snorting, no popping on the overrun. starts straight away.
finishes;
MJ; 185
MAJ; 1.5
Needle K58 special
Clip; 4 now down to C2
PJ; 35
Slide: /50
FS; 1.5 turns
testing that is left.
because on a previous thread I pushed myself to test at the end of the day and the dropped the atomiser from DR274 to DR272 and really improved the starting, and also because the PJ is so low at 35: I want to see if it'll take a DR270 and also what happens to the PJ. also, to see if the starting doesn't become better still.
I wanted the jetting to end up in the "middle" well the atomiser is the halfway one but so is the DR270....there are 6. but the PJ is lower than I wanted.
is the PJ suppresed in anyway by the .4 PAJ or is it right that both are small.
I also should try some top end stuff but on road gearing. i don't like this type of testing anymore. Too fast, too noisy, too old!
also, I have put a PROPER BLUE KEIHIN bellmouth inwhat is really the dell orto air filter adapter (AFA) that I have called here "the bellmouth" but it isn't really. this should net a good midrange improvement.
here is what i did to the choke;

look at the size of the hole the alloy bung filled. the choke still only wants 1mm of lift at the lever!!!!
I really wanted that Japanese high idle. I have only ever had it once and not sure how to get it back!
Taffy