I've ordered a jet kit to go with an aftermarket pipe and K&N clamp-ons, but how do I know if the jets are the best size to maximize performance? How do you know how big a jet size you can use before you're running too rich, other than trial and error? I'm told altitude and ambient temp has something to do with it. I'm essentially near sea level in southern FL. Thanks.
2007-03-25 00:25:33 · 8 answers · asked by magnumPA 1 in Cars & Transportation ➔ Motorcycles
4 stroke. And fmf.com took me to some logistics site.
2007-03-25 00:48:04 · update #1
Sandman is right on target.
You will have to adjust the idle air screw also. But as the name implies that only works for at IDLE. You have to rejet since you are letting in more air and passing more faster out the back.. SO you have to add more fuel to keep the ratio.
I would suggest you look at what jets you have in there for stock. Bump the low jet up 1 number and the high jet 2 or 3.
The jet kit should come with some recommendations. But since you only did filters and pipes you shouldn't have to move them much.
Oh.. Sandman forgot..
If it pops through the carb you are too lean
If it pops through the pipes you are too rich.
Good luck.
2007-03-25 03:17:11 · answer #1 · answered by shovelkicker 5 · 1⤊ 0⤋
All jet kits are performance tested and tuned for your particular bike with the modifications you have installed The jet kit even explains which jets (the kits come with different size jets) to use at various altitudes (sea level,1500ft, etc).
Any fine tuning needed, is fully explained in the carburetor troubleshooting guide that comes with the jet kit.
I have a troubleshooting guide for anyone that wants a copy. Send me your e-mail address so I can forward it to you.
2007-03-25 06:39:35 · answer #2 · answered by guardrailjim 7 · 0⤊ 0⤋
is it a 2 stroke or a 4 stroke?
you really dont have to change the jetting on a four stroke, just adjust the fuel air screw, but on a 2 stroke, you may need to change the jetting.
go to fmf.com, there they have a site for recommended jetting specs for different bikes at different altitudes.....
2007-03-25 00:31:41 · answer #3 · answered by SWT 6 · 0⤊ 1⤋
Hello,
After you receive your jet-kit check the jet #'s and make note of them, remove your jets and go one (or two) sizes up. Then after you ride your bike let it cool and remove your plugs, check the color, light in color means lean and dark & wet can yet be too rich.
2007-03-25 06:06:37 · answer #4 · answered by gretsch16pc 6 · 0⤊ 0⤋
Trial and error. Watch the plugs.
The air screw is only for idle mixture.
2007-03-25 04:00:13 · answer #5 · answered by Nomadd 7 · 1⤊ 0⤋
follow the unique as that's plenty extra handy to rebuild and fully adjustable and no count what carburetor you place on it the engine is going draw as much because it desires in case you squeeze the draft to 6 hundred cfm it will boost gasoline intake and shrink potential btw the thermal choke thermostat is extra good sparkling the range and if needed
2016-10-20 10:04:06 · answer #6 · answered by Anonymous · 0⤊ 0⤋
trial and error...warm it up,put in a fresh plug,run it hard up a hill,shut it down,read the plug.should be tan.White is too lean,black too rich
2007-03-25 02:46:10 · answer #7 · answered by Anonymous · 2⤊ 1⤋
go to buy
2007-03-25 00:32:48 · answer #8 · answered by octo 2 · 0⤊ 1⤋