Yamaha vmax 600 aaen pipes carb specs?

[JAPET]

on my 600 vmax xt 96, I have set up low-altitude (stock, 152.5), needles too and I ride between 1000m (3300ft) and 2000m (6600ft).
So, I'm too rich.
on the data sheet of yam, it says between 147.5 and 146.3 and needles a step up from stock for this altitude.
but now, I mounted twin pipes AAEN and Aaen said to put 2 points higher compared to the stock.
i have to reed spacers , tin gasket , and clutching aaen in primary , secondary stock.
in green , I have
in pink, what should be for stock pipe.




questions is:

is what I can try with the low altitude adjustment without any risk to my engine?
it will not be too lean ?
for me , I think not because I should have 149.5 (147.5 set up high altitude + 2 points) instead of 152.5.
knowing that it is rarely more than -10 in my country and I also ride rarely below 1000m .....
I have to touch the needles?


thank you for your opinions!

 

[JAPET]

nobody for advise me ?

 

[A couple of bucks]

I found this while surfing the web.

 

[JAPET]

thanks , i have 155 and 160 main jets....
I will not take any risks, I'm enrich and get off if needs.

 

[A couple of bucks]

Stock Vmax 600: 96.4 hp @ 7750 & 65.8 ft lbs tq @ 7500

Aaen Single: 99.4 hp @ 7500 & 69.6 ft lbs tq @ 7500

Yamaha GYT Single: 97.9 hp @ 8000 & 66.2 ft lbs tq @ 7500

SLP Twins: 108.8 hp @ 7750 & 73.2 ft lbs tq @ 7750

PSI Twins: 107.1 hp @ 8250 & 68.6 ft lbs tq @ 8000

RPC Twins: 106.7 hp @ 8250 & 67.9 ft lbs tq @ 8250

Bender Twins: 108.3 @ 7750 & 73.4 ft lbs tq @ 7750

It should be noted that Dynotech also measured and compared the Bender & SLP twins and they came out with exact same pipe measurements and the results netted dang near the same HP & TQ readings.

Turbo Vmax 600 7 psi: 131.3 hp @ 7750 & 90.5 ft lbs tq @ 7500

Turbo Vmax 600 9 psi: 141.7 hp @ 7500 & 99.2 ft lbs tq @ 7500

Turbo Vmax 600 11 psi: 151.4 hp @ 7500 & 106.3 ft lbs tq @ 7250

Turbo Vmax 600 12.5 psi: 162.3 hp @ 7900 & 109.3 ft lbs tq @ 7700

 

[A couple of bucks]

I wish that list had GYT TWINS on it.

 

[JAPET]

on the datasheet Aaen, twin pipes Aaen gives 15 hp, 110cv@8500rpm.


I have 8cfy7-55 needle.
it is stock ?
I can not find the correspondence between Yamaha and mikuni.
yamaha stock ref is 8CA-14116-A0-00 and mikuni stock is .... ??????
thanks