Walbro's K1-WYTA patented spiral metering diaphragm upgrade kit in a 5-pack withoutthe brass "W" gauge. These repair kits allow you to convert your carburettor fromthe traditional rubber metering diaphragm to Walbro's ethanol compliant spiralmetering diaphragm. The new spiral metering diaphragm is impervious to the effectsof Ethanol and additives in modern fuels and does not deteriorate with age.
A membrane with a high grade teflon film in the centre and a stainless steel spiraldiaphragm - impervious to the effects of Ethanol and other additives found inmodern fuels.Currently over 500 Walbro diaphragm carburettor model numbers can be upgraded touse the new spiral diaphragm kits.All parts (except the metering lever) are contained in a clever installation sleeveto make assembly quicker and easier (refer to notes below).
1 (1 pack of 5 kits)
Warning - These parts are extremely durable inside the carburettor but fragile tohandle - DO NOT bend or crease the membrane when handling or during assembly! Thestainless steel spiral is more forgiving but care is still required when handlingit. The metering lever must be replaced with the new one supplied, please reuse theold metering lever pin. If your workshop does not already have one, Walbrorecommends purchasing the brass "W" gauge (part number OMK500-528) to properly setmetering lever height. For a singular version of this upgrade kit which includesthe brass "W" gauge use our part number K1-WYTA .
Fitting instructions -1. Remove metering cover, old diaphragm and gasket.2. Remove the metering lever and replace with the new one supplied, reusing the oldmetering lever pin.3. Reset the metering lever height using the updated version of the brass "W" gaugepart number OMK500-528 (sold separately). The adjustment point on the brass gaugeis on the bottom, the indentation you need to set the lever height is below theword "Spiral".4. Install the new gaskets and diaphragm onto the carburettor while still containedinside the installation sleeve (Important - install onto the two metal pins, makingsure that the word "TOP" printed on the installation sleeve is facing up).5. Hold the installation sleeve with one hand and put the metering cover on overthe top to hold it down.6. Install the four screws and start them by just one turn each.7. Then remove the clip off the end and pull the installation sleeve out, thentorque the screws down normally.
When comparing this fitment application information to your carburettor modelplease disregard all letters (A, B, C) and -1 that may be at the end of yourcarburetor model number.
Genuine Walbro,
Diaphragm and Gasket Set, Gasket and Diaphragm Set, Metering Diaphragm and Gasketkit - Spiral, Spiral Metering Diaphragm and Gasket Set,