Kawi2strokes.com Forum

hey, anybody out there done an s series case reed setup? I have the cages.. and adapters..made a set for use with an s motor already to bolt on in 'stock' location, but I keep looking at the spare sets of cases I have and thinking how much better an extra set of transfers up the back of the cylinder would be.

I know its been done with h series multiple time sand I KNOW it works well there, but was wondering if anybody had experience with case reeding an s series? thanks.

If anyone should give it a shot, it's you. The 2 H2 examples didn't really show anything special, but it does have a cool factor.

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Twist the throttle, tilt the horizon, and have a great time. What triples are all about...........

Henry is getting some pretty incredible numbers out of his. Oh, i'll do it, already have it planned out, etc...just wondering if anybody else has.

It's probably hasn't been done because the amount of work involved, but I'm sure there are easier ways of doing things.

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Twist the throttle, tilt the horizon, and have a great time. What triples are all about...........

not too hard. just basic machining and welding. I just want some legit transfer ports across the back, not boost ports.

Watch the welding, seems cases do not like it at all. even when bolted solid. And the S series really perk up with reeds. Then all the triples do....lol

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Twist the throttle, tilt the horizon, and have a great time. What triples are all about...........

Best to take all the precautions you can.
I know if I were doing it, I'd have a thick steel plate bolted were the cylinder studs are, plus a dummy crank shaft to match the bearings.
I'd have them in place before even cutting holes in the cases myself.

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http://kawatriple.com/wtf/

yup. got all that covered, good advice though. preheating is a huge must as well, and a dummy crank blank out of solid bar and rigid fixture plate. the fab really isn't the issue here on the cases for me, I know what im getting into there. I was considering using some of the alumiweld rod as it has a lower temp than traditional tig welding it, which is the other option I have. luckily I have learned a lot about these processes in the past few yrs.

my concern was more with rear transfer port design. my thought was one large port up the back split into 2 smaller windowed ports (to act as a very wide bridged port) with a good hook for direction towards the center of the piston. has anybody done this on here with added ports?

You will get more velocity with the split port, that's a good thing. I don't think you will find a lot of info on case reed conversions, as it is very rare. I only know of the two, Tom and henry. And the alumiweld is a good idea, have to have a heck of a torch though.... Probably not a problem.

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Twist the throttle, tilt the horizon, and have a great time. What triples are all about...........

It may be that even though the aluminum brazing rod melts at a lower temperature than the aluminum itself, the required torch heating would put more heat into the block than TIG would.

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If it surges, that's normal, upshift.