Hi Mark and welcome.

michaelphillips wrote: think the op stated running 13 gms
so in your judgement would the op go down by 1 gm per weight or more, as you may have done this already lad as think he wants it to rev more

I tend not to mess around with weights. The 18 gr ones I use , give me the best mpg and good enough accelleration.
If I put 13gr ones in , it would be screaming its nuts off.
It's hard to compare JCosta on different models of Tmax .
For my mk2 you could get the EVO 2 or EVO r variator. I made the mistake last year of buying EVO2 weights for my EVO r. I didn't double check the reference numbers. Just saw that they were compatible for my 04-07 model.
They look the same and fit ok but I did notice the pins seemed a bit longer. I was checking things before my Belgium trip and they've started to disintegrate. Ive now put the correct ones in.

Theres good info on the German tmax-group site but you have to register to see it.
This is interesting as well,
http://www.advrider.com/forums/showthread.php?t=504880

And specific to the 530

http://www.maxi-muppets.co.uk/forum/vie ... =5&t=17368

Updates ....
i installed the new spark plugs and its wow ,really thanks and i also change the roller weights to 12 gram each instead of 13 gram and its much better in preform.
now i am thinking of next step but i need you advice .
jetprime dry clutch and control unit , whats the oros and cons of each if any one tried them before as his opinion will bevery important , best regards

My old mk3, this was in 2009! -