Originally Posted by Peter J
Originally Posted by andymot

With tongue firmly in cheek - during training and approval of MOT testers we are not checked for colour blindness! Go figure..............


Nor are Bike MOT testers checked for hearing, even though the Bike MOT includes the sound level! As you say, Go figure...


The MOT guidance is suitably vague.....

Originally Posted by Gov.UK Mot Manual


8.1.1. Exhaust noise
If possible, you should assess the exhaust noise by revving the engine to approximately half the maximum engine speed. The engine should be warm before you carry out this check.

It is not possible to rev the engine on twist and go type motorcycles.

The exhaust system and silencer should be in such condition, or of such a type, that the noise emitted from the motorcycle is not clearly unreasonably above the level expected from a similar motorcycle with a standard silencer in average condition.

"Y mae dafad ddu ym mhob praidd"
1972 4/4, 1981 MGBGT, 1984 FLHT1340, 1980 XLH1000, 1990 ZX10