Technical head work on the 899

[brummy cinq man]

is there any head work that you can do for the 899 cinq yourself without that much experience if so will it improve the non existing performance and howd you do it:slayer:

 

[rallycinq]

There is plenty you can do, but without a spare head to cut open to see how far to go, you are in danger of knackering the head.

Cheers

D