Honda VTX 1300 / VTX 1800 Motorcycles Forum banner

1 - 7 of 7 Posts

·
Registered
Joined
·
313 Posts
Discussion Starter · #1 ·
Just put on SPyDER mod on my air box my question is how do you know if you have to shim the needle. Im going on a 6000 trip in 3 weeks and want to get her running right before I go. How do you know if you should shim up the needle and how much do you shim.
 

·
Registered
Joined
·
2,591 Posts
How is the bike running?
Any hesitation pulling away from a stop?

Usually when more air in introduced you will first notice a hesitation around 1500 rpm, which I believe indicates that you need to lift the needle a little.
 

·
Registered
Joined
·
528 Posts
I have a SPyKER air box, K&N filter, and Bubs. Scar mod with 2 Shims and at about 2 1/2 on my A/F screw. Runs great!
 

·
Equito Passim
Joined
·
9,148 Posts
depends if it is a closed or open Spyker Mod

hows the bike running?

-Gonz
 

·
Registered
Joined
·
313 Posts
Discussion Starter · #6 ·
The bike has a hesitation when you give her gas at take off.Then she runs great but in the wind she acts like she is getting bogged down.
 

·
Registered
Joined
·
18,990 Posts
The bike has a hesitation when you give her gas at take off.Then she runs great but in the wind she acts like she is getting bogged down.
Adjust the A/F screw to 2 1/4 to 2 1/2 turns open and add 1 shim
 
1 - 7 of 7 Posts
Top