No power. Timing or jetting?

GR/NDER /
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mk65

19mm dell (jetted 74, 42, 60)

homoet 4p

ported cylinder

piston ported

top ring delete

timing @ 1.8 btdc

symptoms: plug isn't lean. no power down low, very little mid power, low top speed.

i don't have any other jets but may pick some up if necessary.

muchos gracias

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