Thinking of one tooth less...

[ChristoT]

I realise it may be difficult to put into words but how much difference will it make? will that naughty front wheel pop up more?

If you drop a tooth, yes (stunt bikers do this to their bikes), if you go up a tooth, then no. Doing this makes the engine do fewer turns to do 1 full turn of the back wheel. Means that at top rpms, the rear wheel is turning faster (ergo, you go faster). However, the torque and power struggle more - so the bike will accelerate slower, and the front wheel should pop up less.

That being said, I haven't donw this mod on a Fazer. The only way to find out - TRIAL AND ERROR!!!  :woot mokin