Os 70 Surpass
03-06-2021, 04:49 PM
#1
Os 70 Surpass
New OS 70 Surpass
I mounted this engine on a Great Planes DR-1 years ago but never ran it. And I traded the muffler from this engine with a very slightly ( as in bench run only)
70 Surpass II muffler. I think the it's a better muffler being a solid one piece design, I've had the end come loose in some of the Surpass mufflers. If I find the manual I'll include it...
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I mounted this engine on a Great Planes DR-1 years ago but never ran it. And I traded the muffler from this engine with a very slightly ( as in bench run only)
70 Surpass II muffler. I think the it's a better muffler being a solid one piece design, I've had the end come loose in some of the Surpass mufflers. If I find the manual I'll include it...
Free Shipping
Last edited by flying toad; 03-07-2021 at 05:29 AM.
