Author Topic: McCulloch SP125-G  (Read 671 times)

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Offline mcbob

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Re: McCulloch SP125-G
« Reply #10 on: September 12, 2013, 06:23:37 pm »
The intake manifold is the drawback and reed assy the bigger the better I could I suppose fit a sloper manifold and then the BDC 14 into the airbox like I have already done previously on one of my other SP125's
I am a idiot so my pics disappeared.

Offline Al Smith

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Re: McCulloch SP125-G
« Reply #11 on: September 12, 2013, 07:29:08 pm »
On a gear drive set up especially a 3 to 1 ratio you already have more power than you could find bar to fit it .

Yeah you can't hang a huge carb on a little bitty intake and reed .Kinda like stuffing 10 pounds in a 5 pound sack .

A BDC has about 4 times the area of that large Tilley HS or the Walbro used on the 125's .My choice would be a Tilley  HR but that's just a personal preference .For some reason I never liked a BDC although in good tune they can really put out the fuel .

 

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