reed spacer question

[Stan MaN]

Well I posted this in the perf. mod section a few minutes ago but I am kinda impaciant so I thought someone might see it here first. I fabbed up a reed spacer, but where should it go? between the reedcage and cylinder, or reedcage and intake manifold?

[2strokepower]

between the reedcage and cylinder:thumbsup:

[Stan MaN]

are we sure about this? I would think thats right but not sure?

[puttputt]

Definitely between the reed cage and the cylinder.

The problem the spacer is solving is this: insufficient clearance
between the reed cage ( the frame that holds the reeds themselves ) and the ports in the cylinder. The cage is too close
to the the ports, and partly restricts optimal flow on a stock
motor. The spacer moves the cage away from the ports,
thus allowing better flow .

[Stan MaN]

Ah ha, well it all makes sense now! thanks for the info, BTW I dident know where the spacer went b4 I got any answers and I tried it between the reeds and carb, DO NOT do this, dumba$$ me was impacient and tried it :bash: i, it reduces performance! At least I know for next time!:D

[puttputt]

but I put spacers on my Yamaha RD350 ( old 2 stroke twin,
similar to a Banshee motor, but aircooled ).

It doesn't make any more power than before, but now it hits
the powerband at 6 instead of 7 - so, that's a nice change
in my book. . . .

[Dirtsquirt]

The main benefit of a reed spacer (besides spacing it back from the uppermost ports (ie: banshee motor)) is that is increases crankcase volume, thus lowering crankcase pressure and boosting the bottom end of the powerband a tad, while taking away a bit on top (the fule/air "charge" isn't directed into the cylinder as fast, so less is taken in each stroke)

[Stan MaN]

It all makes sense now, thanks for helpin out guy's