Monday 21 May 2012

Dual Carb Refurb

Was tasked a while back with refurbing a set of carbs for a friends project of swapping a twin cylinder motorbike engine (Kawasaki EX500) into his road legal quad chassis,

They were in a bit of a state to start with...






First off was to get them separated, the main screws that fastened them together were corroded quite bad and the cross heads powdered away after a few attempts (with the correct size bit!)

As I was no longer worried about salvaging the hardware drilling commenced, then wound them out with a stud extractor.
 





Each carb could now be examined, one was ok, the other had a crack in the vacuum chamber cap and damage to the main casting which would cause an air leak, so this had to be sorted.





A full strip of each then commenced, everything thoroughly solvent cleaned and terrorised with the air line







All the metalwork on the carbs had started to go so gave it some attention, full wire brush and bench grinder wire wheeled to get all the old corrosion off, then primed and painted fresh silver



The castings where then beasted in the sink, in plastic tubs with chemicals, and terrorised with the hose until the desired result was achieved

You can just see on the right hand carb the chemical metal repair to the casting, ugly but it works, the vacuum cap was sorted with epoxy.



Then finally all reassembled, all knackered hardware was replaced with black socket head cap screws, including those drilled out at the beginning, and the screws for the enrichment linkage, shame I didn't get any other pics of them when they were done,



Taa

Pete

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