Re: Mini Atomic Reed Valve
Posted: Tue Mar 27, 2018 8:08 pm
Just got mine up and running with a 60/110 crank (GT). I haven't changed the jetting but didn't expect it to as far out as it is, totally gutless low down and 4 strokes like an AK47. The replacement piston only has a semi circle cut into the bottom of the skirt as Ron doesn't recommend cutting windows. My previous one did have windows as well as a raised skirt and was bloody fantastic. I'd be interested in your carb set up.Jazzy wrote: ↑Sun Jan 25, 2015 5:05 pm Nk road the one with the extra long downpipe.
30mm PHBH open.
4.6 li 150
17 degree fixed
i was running 65 pilot but this was causing the spit back and poor economy, coming back from AFs we did motorway and i was on the needle cruising 65+ gps and it bettered the others a couple of which were ts1s.
I've safely run a 55 pilot for loads of miles, but found the bigger pilot gave more low down grunt.
it crosses my mind that the extra cooling benefits of large finnage gives a much wider safe/ usable jetting range. it might be that unlike a iron or standard finned kit (ts rt etc.) where the you jet for the right plug colour and there's little else you can do. there are options to exploit different characteristics that altered jetting can offer.
Worn rings, bores, pistons etc promote spit back as well. My RT was unusable, constant flooding in the breathsweet. Untill i changed the piston (excessive wear due to contaminates from a welded tank)
The above are only my thoughts from my own experiences. also my open mouth ts1's spit back just haven't spent the same time on them.
Cheers
Colin