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Old 10-10-2012, 07:40 PM   #1 (permalink)
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Default 2008 ZZR600 DYNOJET jet kit + KnN Filter

Hey guys, I recently purchased a Stage 1 Jet kit and a KnN Air Filter for my zzr600. I've been reading everything I can on the net about the jet kit instal and seems that all that I'm reading is how bad the kit is and its not worth the money and people having dead spots past 9000rpm.

Can anyone tell me if they have had a good experience with this jet kit? maybe some dyno results before and after?

2008 ZZR600, -1+2 sprockets, yoshi Carbon Fiber Slip on

Thanks in Advance.
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Old 10-11-2012, 07:34 AM   #2 (permalink)
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Originally Posted by ItalStal View Post
Hey guys, I recently purchased a Stage 1 Jet kit and a KnN Air Filter for my zzr600. I've been reading everything I can on the net about the jet kit instal and seems that all that I'm reading is how bad the kit is and its not worth the money and people having dead spots past 9000rpm.

Can anyone tell me if they have had a good experience with this jet kit? maybe some dyno results before and after?

2008 ZZR600, -1+2 sprockets, yoshi Carbon Fiber Slip on

Thanks in Advance.
I don't know about the air filter but the Dynojet kit i put in my bike was the best money i've ever spent on my 02.

I would bet a good number of the people who have bad things to say about them probably never even used one, or didn't install/tune correctly. Some may have had a genuine bad experience, but i bet that is a small number compared to the "my uncles brothers sisters cousin in law's butlers mechanic said" crowd.
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Old 10-11-2012, 09:48 AM   #3 (permalink)
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I never dyno'd mine but once I got it setup just right this thing pulls like a freight train now, definitely money well spent.
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Old 11-08-2012, 11:27 PM   #4 (permalink)
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I know this post is a month old but im actually in the same boat, i was contemplating the dyno jet kit as well, i called a local shop that had a dyno so i could get it dyno tuned as well, and the head mechanic there said he could get the same power gains and better run ability out of my stock setup with some modifications. he said he could get me around 6 to 8 hp out of my factory carbs with some work, which is what the projected gain is from the dyno jet kit, and i will save the 120 bucks for the jet kit. i will see for sure in a few weeks, dyno results to follow.
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Old 11-09-2012, 02:01 AM   #5 (permalink)
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I heard both sides of the story. I know a guy who drags Kawasaki and the guy that does his carbs is phenomenal. He said in the factory they plug a set of ports for emissions. If you redo your carbs and those plugs, you can gain great results. I can't give details, atleast not yet. But I would love to see what can done without a jet kit on these bikes, and what it takes to do. Honestly for the price of a jet kit I feel its a great deal and it gives a nice gain. If tuned correctly. But either way to me the cost isn't to bad.

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Old 11-09-2012, 07:25 AM   #6 (permalink)
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The stock needles in the carbs are garbage, the taper profile is almost completely linear. Sure a good tune on the main and pilot circuit along with some needle shimming would help due to the crappy factory jetting but sounds to me like these guys are blowing smoke up your asses.

Would like to see these "blocked off ports" as i've never found any on my carbs. Unless that guy is talking about the mixture screws for the pilot circuit.

Maybe they can install you a new "powerband" in the clutch while they are in there....
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Old 11-09-2012, 03:54 PM   #7 (permalink)
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I can't say if it's true or not. I never rode or seen what I said about this guys hidden ports. I just was in a shop and the two guys were there that had the bike. I listened in becauit was a Kawasaki. Seen the guys bike, and heard it run while I was there. That's it. I only said my previous statement bc I was surprised when I heard it myself. He made it out to be some kind of hidden secret. But hey like I said I can't put any truth to it.

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Old 11-10-2012, 11:51 PM   #8 (permalink)
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the Dynojet kit I purchased was around 90 Canadian at Royal Distributing.

It came with a variety of different size jets, and the instructions were pretty clear as far as installation goes and which jets to instal.

between those instructions and a shop manual the job was pretty straight forward, about 6 hours total and tank on and off finding vaccum leaks and tuning a couple times.

I lost one of the amazingly small o-rings on the vacum covers (found it after a week and a couple rides sitting just on the engine near the pump)

there were 4 plugs to instal inside the carbs, not sure what they were for but maybe it was for the emmissions stuff that was mentioned before?

only other thing I had to play with was the idle mixture screws, instructions said to have them 3 turns out, mine idles better with 3.5-4 turns out.

Either way, most worthwhile mod I've done so far, runs really smooth and pulls really hard. Goes good with the sprockets (-1+2)

Maybe next year I'll do the speedo healer so i'm not always cruzing at 220kmph
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Old 11-11-2012, 12:06 AM   #9 (permalink)
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Factory Pro kits are like $10 more than Dyno Jet but they also give you more than one set of jets. You get springs and adjustable needles as well. Makes tuning easier. What all does the DJ kit come with?
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Old 11-11-2012, 03:01 AM   #10 (permalink)
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Factory Pro kits are like $10 more than Dyno Jet but they also give you more than one set of jets. You get springs and adjustable needles as well. Makes tuning easier. What all does the DJ kit come with?

My DJ kit came with 16 jets, adjustable needles, main air jet restrictors. No springs on my kit but from what i understand the ZZR kits come with them.
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