My commute is about 10 miles with a legal top speed of 50 mph. I am trying to make the ultimate sleeper/Q-car commuter bike; lots of power/grunt, light weight, high bars for traffic weaving, can tackle any state of road/floods (I live in Gloucester) but looks like a 125cc old dog.
Here's the bike with her fitter younger step-sister last summer:
While rebuilding the clutch over Christmas I heard a frightening "crack" sound come from the KIPS value rack. I took off the head and the RHS KIPS valve was broken. The LHS was missing except fo a small stub sticking out of the head to give the impression that there was one there:
Through the wonders of this forum I discovered that BDK Race Engineering were trying to make replacement KIPS valves as there was a worldwide drought. God bless ya Brock and James. And hats off to James on this forum for sending them his intact KIPS valves to make copies of. They were perhaps the last two remaining KMX200 KIPS valves in the world......
While I have been waiting I have striped, cleaned and rebuilt the carb with a £24 Keyster kit from NRP motorcycle carburettor repair specialist. Service was good and the gent was nice and friendly on the email. I have upjetted the main by two sizes in preparation of the engine work and I have some fresh BR8ES plugs ready to do some chops.
I had a friend who had a small ultrasonic cleaner and the DIY ultrasonics worked quite well however if I was doing it again I would send it/them to these boy(o)s who charge about £15 per stripped carb Ultra Clean Carbs. Doing it yourself was OK but £15 is worth spending to avoid the grief I got for all the noise/mess from the wife.
The before and after carbs:
The next job was some Boysen dual stage reeds. I spoke with James at BDK and he strongly recommended retaining the plastic block in the reed housing as it is needed to smooth the flow between the manifold and the reeds. He also suggested removing material from the reed windows as the Boysen reeds cover the whole block. About half was advised along with smoothing any blobs inside. The picture below shows the change from standard to dual-stage with the pile of fillings being what was removed:
The next stage is to put the tuned head, barrels and KIPS bottle expansion on. They are sat in the parcel office over the weekend as we were out when the courier bought them back from BDK.
More posts to follow!