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JET KIT or No JET KIT?

2253 Views 18 Replies 9 Participants Last post by  '01R6
NEED HELP!!!!

I have a 2001 R6 and have installed a K&N airfilter and a Yohsi RS3 slip-on. I have been told that I should install a stage 3 jet kit. I live in Arizona at about 5500 feet elevation. I have talked to the local bike shop guy and he told me that the elevation is too high and the stage 3 jet kit would not be a good decision. He instead claimed that maybe a stage2 would work but he recommended that I just leave the carbs the way that they are and just ensure the carbs are in-sync and always tuned. Anyone have any other advice or personal experience that would help me out?
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I would go with the Ivan's jet-kit. It's the best available. I can get them and he will provide me the proper jets for high elevation. I've done it before for guys in NM, CO, etc.
Yeah, dont do anything other than what Hammy said! Ivan's is hands down the best available jet kit to buy.

Also, get rid of your K&N and put the stock filter back in
I'd listen to Ivan... (via Hammy). I've never heard anyone say anything bad about Ivan's kits.

Besides... Hammy ROCKS!
OK so a stage 3 jetkit would work for me? How will it work when I am riding at lower elevations? There is about a 2000 ft difference in elevation from where I live to Tucson and Phoenix.... I do ride there often.... Also, why put the stock airfilter back in? I was told that the K&N was the way to go...higher elevation, less air, better air filter more air... etc etc etc........ I just want to make the bike faster and such.... I have already installed a 520 chain with conversion sprockets.....front is still 16 but I added 2 to the rear... it really takes off now. Any info would be much appreciated.
While you're spending the money buy a flo commander. I've got a 99 with a K&N, full yosh rs-3 and a jet kit too, i'm not sure what brand/size though. Flo-commander did make a big difference between 4-6K rpms. smoothed things out a bunch, doesn't bog/hesitate. Plus it is adjustable, so in your case i think it would help. check-em out....
http://flo-commander.com/index2.html
Why not K&N?

If you look at the stock filter next to the K&N you will notice the K&N has less surface are than the stock. It has that big black platic cover on the top that blocks air coming in from directly above. I have not heard, or experienced, anything good with a K&N on the R6. Stock filter is the best option.

Ivan's jet kit is the way to go. If properly installed and tuned you won't need anything else. Tuning is very important. Not just getting the carbs synced. Get it tuned. Costs a bit more, but the results will be worth the cost. Preferably get it tuned on a Dyno. You will absolutly love your bike.

Elevation change will change the performance, but that is just what you have to live with. If carbs are properly synced you won't notice much except for overall power in certain RPM bands.

Good luck and enjoy.
Hey all THANKS a bunch for you help..... I am off to my local shop to purchase the items.... Hopefully I can get it all done for a reasonable price.... next step... NOS!!!!!!!!!!!!!!!!!!!!!
Damn, this is a really helpful thread on fuel, jet kits, and tuning.

Ivans jet kit
GYT-R full system
Flo-C
520 (+1 or 2 rear)

Hows that sound for the "go" part??
oponions plz
what else is good?

dont mean to thread jack, but I dont feel its worth starting a new thread about it, and the threadstarted seems satisfied
[quote='01R6]Damn, this is a really helpful thread on fuel, jet kits, and tuning.

Ivans jet kit
GYT-R full system
Flo-C
520 (+1 or 2 rear)

Hows that sound for the "go" part??
oponions plz
what else is good?

dont mean to thread jack, but I dont feel its worth starting a new thread about it, and the threadstarted seems satisfied[/quote]

that'll make you GO, first real ride after my mods I decided to get a steering stabilizer too.
r6boater said:
[quote='01R6]Damn, this is a really helpful thread on fuel, jet kits, and tuning.

Ivans jet kit
GYT-R full system
Flo-C
520 (+1 or 2 rear)

Hows that sound for the "go" part??
oponions plz
what else is good?

dont mean to thread jack, but I dont feel its worth starting a new thread about it, and the threadstarted seems satisfied
that'll make you GO, first real ride after my mods I decided to get a steering stabilizer too.[/quote]

Yeah that's not a bad idea, I've experienced reasons to purchase one already :drink
Need Help - 2001 Yamaha R6

The best way to figure exactly what you need as far as in jet kits is going to a place that uses dyno's and putting the bike on it. I have a micron exhaust on my 2001 and the dyno said that I only needed a stage 1 kit. Everyones bikes run different. The dyno will not lie. It will also show you what your best gearing could be...
WILL I DAMAGE MY MOTOR IN ANYWAY not using a jet kit with a full exhaust for just a few days, The Ivan will be ordered in 2 days, but wondering if It's okay to ride til then.

ANY input is needed, I want too ride!!!!??????? :stupic please help
[quote='01R6]WILL I DAMAGE MY MOTOR IN ANYWAY not using a jet kit with a full exhaust for just a few days, The Ivan will be ordered in 2 days, but wondering if It's okay to ride til then.

ANY input is needed, I want too ride!!!!??????? :stupic please help[/quote]

for me i wouldnt take that chance because the engine will run lean since you got the full system. i dont know how far or how long you will ride the bike. i would think it would run kinda crappy with out the jet kit. if you wanna ride that bad i would put on the stock exhaust just to be on the safe side.
stoneloco808 said:
[quote='01R6]WILL I DAMAGE MY MOTOR IN ANYWAY not using a jet kit with a full exhaust for just a few days, The Ivan will be ordered in 2 days, but wondering if It's okay to ride til then.

ANY input is needed, I want too ride!!!!??????? :stupic please help
for me i wouldnt take that chance because the engine will run lean since you got the full system. i dont know how far or how long you will ride the bike. i would think it would run kinda crappy with out the jet kit. if you wanna ride that bad i would put on the stock exhaust just to be on the safe side.[/quote]

How lean do you think it would run, doesn't run horribly bad, pulls stronger, but you do notice it needs the jet kit, every once in a while it will hesitate somewhat, and won't rev from idle to redline on WOT, it hesitates just tid at about 6k....ride or no ride? I'm trying to convince myself it will be okay for a few days..considering this is a nice day, and rare for here in this time of year :poke
[quote='01R6]How lean do you think it would run, doesn't run horribly bad, pulls stronger, but you do notice it needs the jet kit, every once in a while it will hesitate somewhat, and won't rev from idle to redline on WOT, it hesitates just tid at about 6k....ride or no ride? I'm trying to convince myself it will be okay for a few days..considering this is a nice day, and rare for here in this time of year :poke[/quote]

i cant say how lean it will run. running the bike in a lean condition will make the engine run hotter than usual. i know it will run like shit. if you just have to take a ride. do yourself a favor and 20 minutes to put on your stock exhaust. i would rather take 20 minutes to do that and take a long ride than having to replace some other internal engine parts, that could get expensive. if you cant change the exhaust then just wait the 2 days to get the jet kit.

i for one like to only do things once. for my '03 i waited until i got my slip on, pcIII and airfilter before i installed all of it. i wasnt going to take the chance of it running lean with out the proper map. then i got the slidestops and v-stacks, i didnt want to remove the tank twice, so i installed it the same time. as with my tires and 520 conversion, i waited until the tires needed to be changed then i did the 520 at the same time, i didnt want to remove the rear wheel again. i guess i am lazy, or what i say at work "work smart, not hard".
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stoneloco808 said:
i guess i am lazy, or what i say at work "work smart, not hard".
I say the Exact same thing, except it's "think lazy, then speed will increase" Yeah, I'll wait, damnit lol, thanks for smacking the sense into me like I needed
:wave
WOW I never thought about that..... I was running my bike with a yoshi RS3 slip-on, K&N filter for awhile and never thought about the bike running lean. I haven't noticed it running any hotter except for the fact the dumbass guy at my local bike shop sold me the wrong oil. (Too light weight for Arizona) Other than that, it seemed to run better than before and pulled way harder... oh yeah I put a 520 chain and vortex conversion sprockets, 2 up in back. Would my mods do the same thing as putting on a full system?
Well, it sounds like you like/want more power, go with a jet kit, my Dyno stock with the Graves full system was 98.3HP, and dipped almost down to nothing around 6kRPM, and that was the best run they got out of it, usually they said it wouldn't even redline when trying to dyno it, but the best baseline run they got with the graves full system without the jet kit was 98.3HP then with the my Ivans jet kit, I immidiately hit 103.3HP...+5HP!!! with that jet kit, absolutely amazing, and they told me I dynoed the highest out of any R6 that has ever been there, and I was one along with many others including '03s and '04s.

I'm not sure about how or why it will run lean, but I say you can't go wrong with a jet kit, makes daily cruising a lot more enjoyable too, because of the smoothness.
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