Sport exhaust = more fule ?

[Jens]

Hi

If i put a new exhaust on my bike, some ppl says it need more fule, or i can damage the engine.

how do i know if i need to modify the carb ?


Jens.

[Wicky]

Inside the back cover of the haynes manual or here http://www.theultralightplace.com/sparkplugs.htm
Try a search for > jetting exhaust air fuel < or similar

[benny hedges]

what pipe do you have jens???

an easy way to tell if you need to jet up is just ease the choke on a bit - if it takes off smoother then you probably need to jet up/

you can probably get away with going a size up on main jet, put another washer under the needles and turn the mixture screw out 1/4 (ish) but depends what cans you have.

another pointer is fit a new set of plugs, go for a good 100 mile blast and then have a look at the deposit on the plug insulating tip. if it's got very light white(ish) deposits on it, you need to jet up.

if you have changed the complete exhaust then yes depending what it is.
if it's just off the shelf cans i doubt you need to touch it, unless you have fitted a different air filter too.

if you need to buy jets, david silver sell them individual by size - not many honda dealers do them off the shelf now like they used to.

[tony.mon]

Or maybe you'd like to do this little conversion, which adds a fuel pump and a little bottle of additive to the intake side:
http://www.holley.com/data/Products/Tec ... 8-SNOS.pdf

[marlbororman]

Or maybe you'd like to do this little conversion, which adds a fuel pump and a little bottle of additive to the intake side:
http://www.holley.com/data/Products/Tec ... 8-SNOS.pdf

Now thats an interesting read