Rejetting Carbs..

[spookytooth]

Perusing the forum and ran across this...

viewtopic.php?f=3&t=9420&p=43677&hilit= ... rbs#p43686

How accurate is the statement about not having to rejet for straight pipes? I was under the impression that not enough back pressure would cause exhaust valves to burn?

[Placerville]

It's accurate. No need to rejet when changing exhausts. You only need to rejet if you're changing the intake, air filter, bigger cams, turbo charging etc. Intake or carbs - rejet. Exhaust - no jetting required.

[spookytooth]

Heh... The opposite of what I thought.

[Fred Camper]

The GL is just not sensitive to exhaust back pressure. But perhaps more sensitive to intake changes.

[spookytooth]

The guy down at the Honda dealership told me a free flow exhaust or even a leaky stock exhaust would burn valves. This changes everything. I wish I would have inquired about this sooner...

[graverobber1971]

My exhaust is rotted I'm in NY and ride as much as I can so not good for metal part's. But when my holes get too big it won't run right. It needs the back pressure if you open the exhaust you need to jet or it won't run smooth it runs like you have water in your fuel. Just saying from experience! Hope this helps.