new triple stage reeds WHAT THE ??

[Jaxsplatt]

G'Day all, picked up some triple stage reeds and put them in ready for Bundy race on the weekend and my cag wouldn't even get close to starting. Tried all different variations to see but got fedup pulling it apart.Bike has standard Carby and two piece head with a truck load of compression. Any ideas or have I wasted my money... The metal reeds are working ok but heard these were the ducks nuts.

[RD RACING]

this sounds like its only a reed problem as you mentioned the engine runs with the stock tin reeds. i advise you to remove the reed block then have a close look at the reed mating surface, this is where the reed contacts the reed plate, if your plate has the 2 black rubber seals take them out and also place this plate on a flat board with wet and dry sandpaper, hold the plate then lightly sand the face of this plate so all is free of humps ect, the stock plate with the rubber inserts can be troublesome as these inserts can come out of position and cause a non seal to 1 or both reed halves. when you re fit the reeds to the plate, hold this up to light and check for gaps between the 2 plate halves [ or windows ] a slight gap is ok as piston blow down will close the reed but if the gap is to large there wont be any close off.

[YPISTN]

yeah, i bought a set of carbon fibre reeds, im surprised how much more betetr it goes no fuel blockage in the engine runs like a dream

[Jaxsplatt]

thanx folks I'll give it another look when the wife lets me down to the shed

[YPISTN]

Originally Posted by RD RACING

this sounds like its only a reed problem as you mentioned the engine runs with the stock tin reeds. i advise you to remove the reed block then have a close look at the reed mating surface, this is where the reed contacts the reed plate, if your plate has the 2 black rubber seals take them out and also place this plate on a flat board with wet and dry sandpaper, hold the plate then lightly sand the face of this plate so all is free of humps ect, the stock plate with the rubber inserts can be troublesome as these inserts can come out of position and cause a non seal to 1 or both reed halves. when you re fit the reeds to the plate, hold this up to light and check for gaps between the 2 plate halves [ or windows ] a slight gap is ok as piston blow down will close the reed but if the gap is to large there wont be any close off.

RD i fitted some reeds today and the piston blow back is blowing my reeds shut i think. how can i fix this, i red how you look it into the light but it dosent make any sence to me.

Cheers Frankie

[Jaxsplatt]

CHEERS R.D. stripped the black rubber and and cleaned the plate and works a charm !!!!!!!!

[1968falconxt]

the reeds are supposed to shut. that is how they work