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rdgood · 10-08-2007, 06:36 PM

Hummmmm,

Having seen both the 37.5 and 40% cowls, I wonder if Troy Built mistakenly sent a you a 37.5 instead of as 40% cowl??

Here's another thought - I do know that the 37.5% cowl came in 2 different sizes. The first generation cowl was too tight for DA-150 and you had open up the cowl to accomodate the spark plug cap. The newer versions were sort of expanded going out (kinda like a mushroom) for the 37.5% to make room for the DA-150 spark plug caps. So what I am thinking is the mushroom one may be the one you presently have instead of the 40%er??

Ronster

10-08-2007, 06:36 PM	#2
rdgood Bad-ass Super Contributer! Join Date: Jan 2006 Location: Portland Oregon Age: 52 Posts: 1,502	Re: 40% SD Yak Quandry... Hummmmm, Having seen both the 37.5 and 40% cowls, I wonder if Troy Built mistakenly sent a you a 37.5 instead of as 40% cowl?? Here's another thought - I do know that the 37.5% cowl came in 2 different sizes. The first generation cowl was too tight for DA-150 and you had open up the cowl to accomodate the spark plug cap. The newer versions were sort of expanded going out (kinda like a mushroom) for the 37.5% to make room for the DA-150 spark plug caps. So what I am thinking is the mushroom one may be the one you presently have instead of the 40%er?? Ronster Last edited by rdgood; 10-08-2007 at 06:55 PM.