Wednesday, January 23, 2013


ROCK SOLID TECHNICAL BULLETIN 0312: Reed Valve Installation

The Reed Valve has been assembled & checked by Rock Solid Engine Team personally, all tolerances are within our design parameters & should NOT BE ALTERED. The Rock Solid Reed Valve kit has been designed around countless hours of Dyno testing to ensure the best design possible for the cage has been used; any modifications no matter how small will lessen the affect. For example, Rock Solid Engines could have quite easily lengthened the intake runner, but testing has proven even 1mm of additional length from the tip of the Reed valve to the leading edge of the manifold runner would decrease performance. The team at Rock Solid Engines are all about designing components which attain the best results possible.


1 x Complete & assembled Reed Kit
2 x M6 Washers
2 x 304 Stainless M6 x 30 button head socket screws
1 x Inlet gasket

Step 1: Remove existing carburettor, accelerator cable & inlet manifold from engine.

Step 2: Clean thoroughly the inlet face of the barrel to ensure no old inlet gasket is remaining.

Step 3: Place the reed valve cage & gasket up against the face of the inlet flange of the barrel to check if any of the cooling fins of the barrel will foul against the reed cage body. Not all engine barrel castings are the same, if the back of the reed cage fouls against a cooling fin simply use a flat file and gently file back only the cooling fin which is stopping the reed cage from sitting against the inlet manifold face. This is very important that there is enough clearance so the Reed cage, when fitted can be tightened down correctly, ensure you place a strip of masking tape against the inlet flange face to stop any filings entering the inlet runner.