Yes, air filter elements should be replaced-about once a year or more often with a lot of rural miles. If your engine runs better without the filter its well past time for a new one. This is the same 37mm high element that fits single‚ HS2‚ carb or‚ HS2‚ twin carbs. The Cooper filter cannister that requires 2 filters was…
For HS2 single carbs this is the Complete kit of the parts required for an overhaul kit- if you do not require the spindle and disc and bushes see WZX1851
The gasket on the air cleaner elbow side of the carb. Bolts between the carb and elbow or directly to pancake filters on the HS2 carb only. See GUG705559GM for HS4 carbs
Complete service kit from "SU" includes all the bits needed for a very complete rebuild of your twin HS2 or HS4 carbs; Carb repair kit less spindle and butterfly -includes float needle valve and jet. Full repair kit see CRK101
The MED aluminium stub stacks have been extensively tested on our 110 Superflow flow bench to optimise the elliptical radius on the stub stack. The result is improved air flow to the carburettor and a proven increase in performance - on a wide range of different engines and rolling roads. Combined with the genuine ITG air filter, this offers an…