Engine serial number

[Shwartz]

Hi
So I went to place my gasket order today for my bike and when ordering the valve cover gasket they listed 2 part #'s and they are dependent on my engine serial number (from what I understand).
I know the bike's serial number is on the plate around the steering stem, but where exactly is the serial number stamped for the engine itself?

Thanks

[hampshirehog]

Behind carb #4. Read it from the right hand side of the bike (RH side as you sit on it).

[Shwartz]

So is it above/below the intake mani?

[blowerbike]

pad above the clutch cover?

[BassCliff]

Hi,

See it there on the top of the crankcase next to the clutch actuator near the oil fill plug?



Count the number of bolt holes in your valve cover. The later models used more bolts (16 vs. 17). I think the "upgrade" occurred sometime during the 1981 model year to fix an oil leak.

11173-34200 is the 16 bolt valve cover gasket.
11173-34210 is the 17 bolt valve cover gasket.


Thank you for your indulgence,

BassCliff

[Shwartz]

Perfect, thanks guys