Have new running problems again now. Today I installed a slightly smaller pilot, there's 3 different sizes across all RG125F models, 27.5, 25 and 17.5. Mine was 27.5 and seeming rich down low so I got a 25. Doesn't seem to have done much but I haven't had chance to set it up air screw/idle speed wise while at running temp. I've been too busy trying to figure out why I was getting splutters all over the place and power was shite. I guess 6 miles into a new piston you shouldn't get optimal performance, but anyways, figuring it may now be too rich I dropped the 240 MJ down to a 230 (at same time as pilot change) and a 9k splutter cleared nicely off. However the initial terrible running at high revs problem which was solved with a new plug...is back with a vengeance Thinking perhaps another dud plug I've swapped for 2 other brand ones, this time no difference. When I had this problem before it wouldn't occur too much in 1st and 2nd, but it did in longer gears. Well now it's the direct opposite!! wtf? I nail it in first and it nose dives at 11ish with a mad splutter refusing to rev anymore, but in 2nd and 3rd it pulls to higher with no problem.
Thinking that maybe 230 MJ is still too rich and causing this madness, I did an attempt at a plug run about 30 miles into the break in. I'm not experienced with plug chops so I'm wondering if I nailed it long enough to get the colour change from mid range point? Basically I nailed it through 2nd and 3rd (where it didn't splutter at all) so probably for around 6-8 seconds I dunno, before killing the switch at around 11,500rpm, and then there was a touch of dethrottle before I pulled clutch in. Well this is how it looks
Well that doesn't look rich enough to be causing this random 10-11k spazzing again. sigh never ends
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