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Unusual K&B 61

Old 03-30-2015, 05:18 PM
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iFrinkso
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Default Unusual K&B 61

Just ordered this PDP .61 from Lee Custom MFG. Mr. Lee mentioned the castings were 'new designs'. I have not seen the 3 fin case on a k&b 61 or the pinch bolt carb mount. Is MECOA revising the #6550? Wonder what's coming down the pipeline. No backplates were available so Mr. Lee hand made these from bar stock, would not allow me to pay extra for the marchine work. What a class act. I hope they remain around for years to come. That guy is the real deal. Has any one seen these castings before? Could be from old K&B tooling. Also the glow plug is not K&B or doesn't look like any I have seen. Almost looks like a Fox stunt plug with machined idle bar, not welded like K&B's I'm familiar with.




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Old 03-30-2015, 09:12 PM
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jeffie8696
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Nice, please post a report on how it runs
Old 03-31-2015, 02:08 PM
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iFrinkso
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I'd Iike to break this one in using 5% Nitro w/ castor and see how it flies first. I'm out of that brew right now and LHS only sells 15% Omega. Is this a little hot to start with? Would probably add 6oz of castor to that.

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Old 03-31-2015, 03:37 PM
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Hmm, I got one a few years ago from him, and it looks just like yours, except the carb is an older style aluminum one with a remote needle valve. It has what looks like to me a [email protected] plug, and it is stamped "Lee Custom" on the mounting flange. I haven't been able to bring myself to run it, I have it on the shelf in my study, and I admire it from time to time.
Old 03-31-2015, 03:53 PM
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109....someday
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You guys got me curious so I checked my 3. Sure enough same three rib case and pinch carb mounting. I only have one of the machined backing plates, the other two have OEM K&B backing plates. I ordered mine a little over a year ago.
Old 03-31-2015, 04:06 PM
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iFrinkso
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I know the feeling. Now I have 2 boys and they want to tinker and fly too. The littlest one keeps getting into my collection of engines. I love watching this so I'll probably end up running it. Anything to keep them off the video games. We got some enya 40's as well to plop in a trainer. I love the engines just as much if not more than flying.
Old 03-31-2015, 04:14 PM
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iFrinkso
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109' did you ever get one of yours running? What RPM's are you getting? He isn't doing the bored out muffler anymore so I wonder if they might be down a few hundred rpm. I actually ordered 2 as well. Both are identical. Are you using idle bar plugs on these?

also, Lee mentioned K&B was out of carbs. With that I opted for Perry 9300 pumper carbs on both.
Old 04-01-2015, 01:32 PM
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109....someday
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Originally Posted by iFrinkso View Post
109' did you ever get one of yours running? What RPM's are you getting? He isn't doing the bored out muffler anymore so I wonder if they might be down a few hundred rpm. I actually ordered 2 as well. Both are identical. Are you using idle bar plugs on these?

also, Lee mentioned K&B was out of carbs. With that I opted for Perry 9300 pumper carbs on both.
I haven't gotten any of them running yet. I had planned on putting one on an Ultra Sport 60 over the winter but my wife changed jobs and you know how that goes...Mine both have Perry carbs too, I am hoping maybe this summer to at least get one broken in on the test stand so it is ready for next fall/winter building. I don't really /need/ to run it before I put it on a plane, but I only have planes so I can have a good reason to have engines.

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