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Forum: ARF or RTF

04-22-2009, 05:26 PM

Replies: 15

OS 71 4S problem

Views: 1,544

Posted By mswify

RE: OS 71 4S problem

I went today to one of the most experienced modelers in my area and we changed the prop to 13x6, we checked the valve clearances and timing, we checked the carburator and fuel line, then we tried the...

Forum: ARF or RTF

04-21-2009, 10:02 AM

Replies: 15

OS 71 4S problem

Views: 1,544

Posted By mswify

RE: OS 71 4S problem

Thanks guys for all your help, I don't have a filter so this may be the reason, and about the 5% nitro fuel the engine was doing great with it at first before it started to lose power, I think I'll...

Forum: ARF or RTF

04-20-2009, 08:40 AM

Replies: 15

OS 71 4S problem

Views: 1,544

Posted By mswify

OS 71 4S problem

Dears,
I bought a new OS 71 4 stroke to mount it on my Funtana s40, the engine was doing great and the plane was really fast, but suddenly after a couple of weeks (after breaking in) the engine...

Showing results 1 to 3 of 3