Anybody try an hd12 on a 261/262...?
I converted/ported a 261 about 4 years ago and was somewhat underwhelmed with how it performed and just shelved it.
I finally pulled it back out to see what I could do with it, first thing was to ditch the 'little' hda 144 that was all I had available at the time.
I'm still short one carb for my pile of 261/262 projects, particularly with the bigger bore hda87's, but do have a couple 87's on running saws.
So I swapped one in and it did make a noticeable difference, so then on to find a permanent solution with something I'd have on hand.
An hd 12 bolts right up and the 261 throttle linkage goes right on and works fine in an existing hole with a few very minor tweeks to the wire. The h, l and la adjusters are upside down but still accessible through the existing holes.
372 choke lever sorta works through the heated handle switch hole, though it will work great with a notch in the top cover.
Air cleaner horn needs to be clearanced for the choke butterfly.
Biggest issue is the impulse, could've put a barb on the stock intake block or cylinder but didn't want to alter that stuff just to see if the carb worked out. Decided to make a quick n dirty belt sander/drill press/die grinder intake block, was surprisingly quick and easy.
My preliminary finding is that it performs as good or better than the hda 87, is available as cheap/aftermarket and hey, it's biggerer.
Just another option...