vespa sto CRANK CHECK stoffi = tameni = meceur / px 200 60mm stroke / FMPguides

STO offers a TAMENI (former meceur) crank with short intake timings, due to technical wrong si carb blowback fear (too long intake timings) explanation. if rotary valve distance is not 0,05mm as it should be also shoet intake timings will cause blowback ;) logical, isnt it.

first time i got one into my hand, it was just used for a few km´s

OK:
centering, stumps, press fit, but didnt check balancing as the crank has too low intake timings anyways = not tuning, just cc expansion. no vid of these checks this time, didnt want to bore you.

SURPRISING:
- a very thin conrod (1,5mm), even thinner than the typ B meceur /tameni conrod (2,4mm), normal tameni has 3,2mm.

- clutch shim (the correct one with sharp edges) slides and falls nearly out

- washer recommendation by sto for the clutch side stump, to move crank towards the stator side, which is very unusual

use mazzucchelli

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DISCLAIMER: the information shown in this video, is about THIS specific hardware. it is my personal observation documented with this video. It DOESNT automatically mean, that all such parts by this producer or seller do have or will have same issues.
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Видео vespa sto CRANK CHECK stoffi = tameni = meceur / px 200 60mm stroke / FMPguides канала FREAKMOPED Vespa Tuning | FMP - SolidPaSSion |