Jet kit help...I'm lost - TwoWheelForum: Motorcycle and Sportbike forums
 
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post #1 of 13 (permalink) Old 11-18-2006, 11:36 AM Thread Starter
 
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Jet kit help...I'm lost

I dont know who will see this; since the category is test forum, but...

Does anyone have any info on any good jet kits. Also, i heard they take a lot of tweeking in order to get them just right.
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post #2 of 13 (permalink) Old 11-18-2006, 11:38 AM Thread Starter
 
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just testing this out.....
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post #3 of 13 (permalink) Old 11-18-2006, 11:39 AM
 
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Originally Posted by ZX6er View Post
I dont know who will see this; since the category is test forum, but...

Does anyone have any info on any good jet kits. Also, i heard they take a lot of tweeking in order to get them just right.

jetting can be a bit of a touchy thing.. it's best to have it done professionally.. that way they can tune it propperly and make sure that you aren't getting too much fuel...
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post #4 of 13 (permalink) Old 11-18-2006, 07:54 PM
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Quote:
Originally Posted by ZX6er View Post
I dont know who will see this; since the category is test forum, but...

Does anyone have any info on any good jet kits. Also, i heard they take a lot of tweeking in order to get them just right.
Now its in the appropriate forum.

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post #5 of 13 (permalink) Old 11-18-2006, 08:42 PM
 
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What bike are you getting this jet kit for? is the bike modded in anyway? re-jetting is best done to the techs! its best to run the bike first on a dyno and get a base graph to decide which jet kit would work best for your bike!

Though this method will take hours to do and maybe costly in the shop. FI best way to go i think for precise tuning, carb jetting will on get you near good conditions but not perfect...
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post #6 of 13 (permalink) Old 11-19-2006, 11:41 PM
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post #7 of 13 (permalink) Old 11-20-2006, 12:15 AM
 
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Dude... trust me... unless your having issues,dont sweat the jetting-seriously! If you are having issues,take it to a shop! It's so hard to tell whether the changes you've made for better performance,or the condition you're trying to change,is rich or lean it'll have your head spinnin !!! If the bike runs good leave it be!
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post #8 of 13 (permalink) Old 11-20-2006, 12:16 AM
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The only true way to know what's going on in your motor is to read your spark plugs and change them with new ones after every adjustment.




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post #9 of 13 (permalink) Old 11-20-2006, 08:44 AM
 
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Buy a good set of gauges and learn how to use them properly. If you can't sync the carbs you have now...trying to jet them accurately will be over your head...It's not that difficult, once you learn how...
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post #10 of 13 (permalink) Old 11-20-2006, 08:53 AM
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Quote:
Originally Posted by Gas Man View Post
The only true way to know what's going on in your motor is to read your spark plugs and change them with new ones after every adjustment.
If your plugs are white, your bike is lean, get a larger main jet,
If your plugs are black, your bike is rich, get a smaller main jet, if your plugs are brown like a coconut, dont change anything, you're spot on with jetting. If you need to get a jet kit, check out Ivans jet kits.
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post #11 of 13 (permalink) Old 01-04-2007, 11:57 PM
 
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testing
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post #12 of 13 (permalink) Old 01-05-2007, 09:44 AM
 
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jetting is simple, just get the one with the mods you have. the hardest part is popping out the main mixing screw cover. dynojet has a good selection http://www.dynojet.com/jetkits/index.aspx

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post #13 of 13 (permalink) Old 01-05-2007, 12:34 PM
 
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On my CBR site, everyone who installed a jet kit and pipe got a huge drop in fuel mileage. Like from 42 down to 32 mpg. Almost all bikes are EPA tested at low to mid rpm. That's where they run lean. If you have a stumble off idle, it can usually be cured on carbed bikes by shimming the needle or adjusting the pilot screw.
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