Peugeot 103 no power from idle to mid revs! :-( Any ideas?

The Bavarian /
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Hallo Mopedarmy members,

my first post on the forum so please excuse my English :-)

We bought a PEUGEOT 103 Vogue (AV10 25mph) last year and we are improving the moped since then.

We changed the crank to fit an AIRSAL Sport 65cc kit and updated the carb to a SHA 15 clone. The factory cdi is still in place.

The 103 start and idles fine, but it takes ages to reach mid speeds. We get good acceleration from mid revs to vmax with no problems. It is impossible to start uphill (but the clutch seems not the problem). So no power during low revs.

Any ideas ideas we haven´t thought about yet?

Could the cdi be the problem? Timing too early BTDC in low revs?

THX.

greets vom Germany

(my 1974 KTM Ponny II Super IV)

Ponny Corso.jpg
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