Query Approved.

What is a pickup coil ?? Do you mean the ignition coil ?
From the problem description, it might also be a CDI issue, or carb synchronisation. I used to have the same problem with bike missing after 5000 rpms and then there was a massive loss of power. Normally after waiting on the side for 10-20 mins, it'd again be okay.

Is that what is happening with you ? In that case the culprit is clogged bigger jet and improper carb sync.
Get it checked by a good mech. BTW you might want to try 020-25669902. Some Kinetic showroom in Pune.
Might have some spares !!
Also a guy called Mr. Patwa 9011044588 in Pune !!
But I'd say the best bet is : http://www.richardhyosunggvgt.com/gv125250bodyparts.htm

Email him for the rates.
BTW I also have the parts catalogue, u might need it to order some small parts. If you want it, pls let me kno the mail id. I'll mail it to u !!

@Mods : I've mentioned it in the Aquila thread in Superbike room too, coz the thread starter can look anywhere !! So if the duplicate is really not wanted, pls delete one of them. Apologies !!

Part Found

I have found out that the pickup coil of TVS suzuki Fiero fits well in Aquila and the performance is satisfactory also ,..........the cost of Aquila coil is approx 12000/- where as the fiero coil costed me 120/- only .........This is for the information of Aquila owners and fellow Xbhpians....