Mods & Fixes

If your engine is running hot at the exhaust valve, back-firing excesively on the over-run or just turning your header pipes blue - this is a good first excursion into modding your Bonnie.

Opening up the air-flow through the stock Bonneville, T100, Thruxton and Scrambler air-box, aimed at increasing engine performance - in combination with re-jetting the carbs and fitting more freely flowing exhausts.

A more in-depth alteration to air-flow, completely by-passing the stock Bonneville, T100, Thruxton and Scrambler air-box. Particularly suited to where big bore piston kits have been installed.

Another classic mod and a natural accompaniment to the KARK, making use of the redundant stock air-filter housing. So simple, even the wife can do it!

Allowing the carburettor air-slides to rise more quickly to increase throttle response by fitting softer slide springs or drilling the slide vacuum hole. A natural accompaniment to the KARK and big bore combination.

Change both the appearance and handling characteristics of your Bonnie for the better - very much in keeping with the Café tradition.

How to fix a common ailment without having to spend money on a replacement part.

Replacement of fork springs, fluid and gaiters, are accompanied by detailed illustrations and torque figures.

A selection of PDF manuals, instructions and tuning notes.

A quick resumé of the modifications and additions I've made to my Bonnie - nothing outstanding or edifying, but there we go.