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exhaust mods

  • Thread starter Thread starter olddaddy
  • Start date Start date
O

olddaddy

Guest
I have been reading a bit on the various exhausts out there for the 2 cylinder GS bikes. I've noticed there seems to be a connection between exhaust changes and carbs need attention. Can anyone enlighten me on this? My stock exhaust on my GS 450 is fine, it works, looks ok etc. However, I saw a GR650 that had Supertrapp exhausts mated onto the exhaust tubes..... and I liked it! Any advice on upgrading the exhausts and necessary carb adjustments? Leave well enough alone? Go for it?
 
Generally speaking, when you enhance the air flow characteristics, you also need to enhance the fuel flow characteristics.

Depending on which Supertrapp, you may and may not be enhancing the air flow enough to worry about, especially if you keep the stock airbox.

Since most of the bikes came from the factory a bit lean, you might want to go up at least one size on the main jet, but reading the plugs will be the ultimate authority.

.
 
You absolutely must keep us up to date on this :D

I'll let you know how I go with the custom exhaust when I eventually get there one day...
 
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