i have a 81 gs550 ex 34,000 miles she has been sitting for 5 years below 4k rpm it run's pretty good (slight stutter) but over 4k a huge cloud of blue smoke flys out, i upped the main jets from 92.5 to 100 for the pod's and 4-1 exhaust (i think my neighbours might hate me soon
)carb's have been cleaned, valve shims are good, new plugs gapped to 0.6mm i run a compression test and it came back with cylinder 1 135psi, 2 125psi, 3 128psi, 4 131psi after spraying some wd-40 down the cylinders 1 165psi, 2 149psi , 3 161psi, 4 155psi ofter testing the compression i fired her up to clear the engine it stopped smoking over 4k rpm and ran sweet as a nut

any ideas ? rings sticking ? or did my bike decide to fix it self (hey i can hope
)
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