| Listed in parts books | Not catalogued by year yet |
MAG GEAR STEEL,MANUAL ADV
Steel magneto drive gear, manual-advance type, part number 70-2741S.
This is the steel magneto drive gear listed as 70-2741S, the manual-advance version of the gear that turns the magneto off the timing side of the engine. The S suffix marks it out as the steel gear rather than the composite/fiber alternative some parts books list alongside it.
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The magneto drive gear meshes with the timing gear train to spin the magneto at the correct speed so it fires the spark at the right point in the engine cycle. On a manual-advance setup the timing is adjusted by hand via a lever or twistgrip rather than automatically, and this gear is specific to that arrangement.
We don't have much more detail on this one beyond what's in the description. If you're not sure whether your bike runs manual advance or automatic advance ignition, or whether you need the steel or fiber gear, call the shop and we'll confirm before you order.
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