Most effective shift points?

[NewbieNinja]

Hi guys,

I've owned my ninja for about a month now but been riding my Gsx-r600 for a year now. When I go from a stop onto the onramp to the freeway it takes so long to get up to speed. I slowly realized that shifting at around 10k-11k is more effective then going all the way to redline.

So my question is, is this normal? Does it take you guys 10-15 secs to get up to speed as well when entering the freeway?

[csmith12]

Yea, it's normal casual riding and being courteous and predictable to other drivers on the road. It's what your supposed to do.

Your building most of this speed on the ramp right?

[NewbieNinja]

It just seems like the bike is struggling so hard.. -_-

[menikmati]

Peak power is around 10-11k on the stock ninjette and trails off a little after that.

[csmith12]

Originally Posted by NewbieNinja

It just seems like the bike is struggling so hard.. -_-

Don't let the high rpms fool you, the bike loves em.

[NewbieNinja]

Well, see the dude I bought it from says its been jetted and it has a Yoshi exhaust on it already.. From most videos I've seen these ninjas are fairly quick from 0-60 after they've been jetted..

[csmith12]

600 quick?.... no, not gunna happen. But, ok, lets assume something is up.

Does the bike run right?
Any bogging down anywhere through the rpm range?
Any slipping anywhere?
Clutch cable adjusted with a bit of slack?
Your weight geared up?
Airbox vs pods?
Air box clear?
Snorkle still installed?

[NewbieNinja]

600 quick?.... no, not gunna happen. But, ok, lets assume something is up.

Of course not.

Does the bike run right? Idle hangs at 4k for about 20secs when coming to a stop
Any bogging down anywhere through the rpm range? Nope bike pulls hard but slow
Any slipping anywhere? Doesnt feel like it
Clutch cable adjusted with a bit of slack? Yup, feels pretty solid.
Your weight geared up? Lol, a whopping 125lbs
Airbox vs pods? Airbox
Air box clear? Not sure yet
Snorkle still installed? Not sure yet

BTW, the bike only has 3800 miles on it.. :/ and thanks for the interest.

[menikmati]

Originally Posted by NewbieNinja

600 quick?.... no, not gunna happen. But, ok, lets assume something is up.

Of course not.

Does the bike run right? Idle hangs at 4k for about 20secs when coming to a stop

Hanging idle? Idle speed should be set at around 1,350-1,500RPM when fully warm and throttle blips should not hang or dip below the set idle speed. Tinkering with the idle mixture screws can help fine tune your idle circuit.

Any bogging down anywhere through the rpm range? Nope bike pulls hard but slow.

Hard, but slow...?

Any slipping anywhere? Doesnt feel like it
Clutch cable adjusted with a bit of slack? Yup, feels pretty solid.
Your weight geared up? Lol, a whopping 125lbs
Airbox vs pods? Airbox
Air box clear? Not sure yet
Snorkle still installed? Not sure yet

BTW, the bike only has 3800 miles on it.. :/ and thanks for the interest.

[Motofool]

Some references, Yue Pheng:

http://www.ninjette.org/forums/showt...ghlight=faster

[menikmati]

Might want to see what jetting you're currently running, main jets, needle height, idle mixture if the PO claims to have it properly jetted with a Yoshimura exhaust.

And a 2008 with only 3,800 miles, the bike probably sat for a long while between rides and may have gummy carbs.

[csmith12]

Np, glad to help as I can.

Sounds like the jetting is slightly off, getting to much air or you have a vac leak somewhere. There should be no hanging of rpms, especially for 20 seconds. Hold out for someone who knows more about that than I. I am not your guy on that subject. It don't really matter how many miles are on the bike if mods where made and not done effectively.

We have some awesome members who post often enough to help you out if that is indeed the issue.

[menikmati]

Originally Posted by csmith12

Np, glad to help as I can.

Sounds like the jetting is slightly off, getting to much air or you have a vac leak somewhere. There should be no hanging of rpms, especially for 20 seconds. Hold out for someone who knows more about that than I. I am not your guy on that subject. It don't really matter how many miles are on the bike if mods where made and not done effectively.

We have some awesome members who post often enough to help you out if that is indeed the issue.

@choneofakind will answer all your jetting questions as well as do all your physics homework.

[NewbieNinja]

Originally Posted by Motofool

Some references, Yue Pheng:

http://www.ninjette.org/forums/showt...ghlight=faster

Ahhh, thanks for the link I was just getting there..

[choneofakind]

NewbieNinja, have you checked if your carbs are in need of cleaning? Slow to pull, hangs when coming to idle, and a low mileage bike point to dirty carbs in my mind, especially when you consider that it should be pulling solidly to freeway speeds with a full Yoshi and jetting.

Originally Posted by menikmati

@choneofakind will answer all your jetting questions as well as do all your physics homework.

right...

[NewbieNinja]

Originally Posted by csmith12

Np, glad to help as I can.

Sounds like the jetting is slightly off, getting to much air or you have a vac leak somewhere. There should be no hanging of rpms, especially for 20 seconds. Hold out for someone who knows more about that than I. I am not your guy on that subject. It don't really matter how many miles are on the bike if mods where made and not done effectively.

We have some awesome members who post often enough to help you out if that is indeed the issue.

Yea, I figured something is wrong but I haven't gotten time to tear the bike apart yet.. But something is definitely wrong.. I just watched those 0-60 clips and I hate coming to stops because it takes so long to get back up.. O.o

[NewbieNinja]

Originally Posted by choneofakind

NewbieNinja, have you checked if your carbs are in need of cleaning? Slow to pull, hangs when coming to idle, and a low mileage bike point to dirty carbs in my mind, especially when you consider that it should be pulling solidly to freeway speeds with a full Yoshi and jetting.



right...

haha, Thanks, I have to reorder a new jet kit because I never got extras from the PO. Then gotta lower so the ol girl can ride it(5'0") then I'll have to tear apart the carbs and redo everthing.. I'm almost 100% positive I am running way too lean..

[menikmati]

Originally Posted by NewbieNinja

haha, Thanks, I have to reorder a new jet kit because I never got extras from the PO. Then gotta lower so the ol girl can ride it(5'0") then I'll have to tear apart the carbs and redo everthing.. I'm almost 100% positive I am running way too lean..

You don't have to buy a whole jet kit, buy some jets from Jets R Us and some #4 washers to shim the needles with. I'd do the carb cleaning first though and then find out what main jets you're running before altering the jetting.

[choneofakind]

Clean them before you re-jet. You can't diagnose jetting on a carb that is not clean and functioning properly.

[NewbieNinja]

Originally Posted by menikmati

You don't have to buy a whole jet kit, buy some jets from Jets R Us and some #4 washers to shim the needles with. I'd carb cleaning first though and then find out what main jets you're running before altering the jetting.

Awesome.. didnt know they sold individual parts.. any ideas what I'll need? PO used dynojet. I plan on replacing airbox with the 1 piece KN and doing the Kleen air removal mod.. What size jets will I need? Thanks.

Also, will I need any needles, pilot jets and well needle jets(wtf?)

[menikmati]

Originally Posted by NewbieNinja

Awesome.. didnt know they sold individual parts.. any ideas what I'll need? PO used dynojet. I plan on replacing airbox with the 1 piece KN and doing the Kleen air removal mod.. What size jets will I need? Thanks.

As Chris mentioned earlier, clean the carbs first and make sure they're operating properly and then work on dialing in the jetting.

We won't know what jetting suggestions to give you until the carbs are performing correctly and what your current jetting is to serve as a baseline.

[NewbieNinja]

Originally Posted by menikmati

As Chris mentioned earlier, clean the carbs first and make sure they're operating properly and then work on dialing in the jetting.

We won't know what jetting suggestions to give you until the carbs are performing correctly and what your current jetting is to serve as a baseline.

Yes, sir. I'll grab a bottle of seafoam tomorrow.