Author Topic: MS180C Easy Start  (Read 649 times)

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Offline 660magnum

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Re: MS180C Easy Start
« on: June 22, 2017, 09:43:36 am »
Changing a 180 engine housing to that of a 181 is not a cost effective adventure.

The starter is different
On the 181 the carb mount is separate from the main housing and the fact that the 181 is a air injection type engine there is the auxiliary air intake. This makes the carb mount area all different.
The straight 180 has a 181 style top cover but the 181 has needle valves whereas the 180 doesn't. There are no needle valve holes in the new 180 cover.

But on the positive side, the clutch bell on the 180 is a 1123 series like a 250. Therefore you can put a rim sprocket clutch bell  from a 250 onto a 180 for whatever that's worth. You cannot have less than 7 pins though. But you can go .325 if that suits your fancy.   
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