Vibration

singlecoillover · March 1st, 2011, 07:22 PM

Does the 08+ ninjette normally have obvious engine vibration, the worst being between 4 and 6k RPMS?

As i was riding my new bike home for the first time today it seemed rather vibey. Not frighteningly so, but enough to make me wonder. It's been so long since I rode a ninjette that I really can't remember how much vibration there was. And of course my nighthawk was smooth as silk, so i can't really use that as a comparison.

Cha0s00100 · March 1st, 2011, 08:17 PM

Have after market bar ends ? Really need the stock heavy or as heavy bar ends on there to help keep the bar vibrations at bay. Regardless the ninja 250 is really smooth. Possible something else going on. What are the details/ history of the ninjette ?

nexus · March 1st, 2011, 08:36 PM

Do you still have stock foot pegs?

singlecoillover · March 2nd, 2011, 07:57 AM

It's completely stock except for the LED lights and flushmount turn signals. It doesn't feel like the bars are vibrating. More like the whole bike.

The bike is used, 3000 miles on it. Just picked it up from the dealership. Other than that, I know nothing about it's history.

nexus · March 2nd, 2011, 09:28 AM

Your wheels may be out if balance. Or perhaps the rear wheel is out if alignment. These problems usually cause vibration at certain speeds.

kkim · March 2nd, 2011, 11:10 AM

check the engine mount bolts for proper torque.

setasai · March 2nd, 2011, 11:16 PM

Between 4-6k rpms sounds like the engine mount bolts. I have vibrations at 8-9k rpms but all the bolts are tight so I think it might just be natural resonance. Are the vibrations felt through the bars, pegs, or seat?

slolane · March 3rd, 2011, 05:55 AM

Quote:

Originally Posted by singlecoillover

It's completely stock except for the LED lights and flushmount turn signals. It doesn't feel like the bars are vibrating. More like the whole bike.

The bike is used, 3000 miles on it. Just picked it up from the dealership. Other than that, I know nothing about it's history.

Great ideas above but having just picked it up from the dealer take it back to them for review/inspection. That should put your mind at ease and confirm your safety.

singlecoillover · March 3rd, 2011, 07:04 AM

Quote:

Originally Posted by setasai

Between 4-6k rpms sounds like the engine mount bolts. I have vibrations at 8-9k rpms but all the bolts are tight so I think it might just be natural resonance. Are the vibrations felt through the bars, pegs, or seat?

I'll have to check that. The vibrations seem to be in the pegs and body work more than anywhere else.

I was talking to my brother about it and he said that his ninja 250's both had noticeable vibration. He said not to worry about it, but I'm probably gonna check the mounting bolts just to be sure.

kkim · March 3rd, 2011, 11:39 AM

Barak,

is this a "new", new bike or a "new to you", used bike? if a used bike, how many miles does it have?

stealth250 · March 3rd, 2011, 11:42 AM

Quote:

Originally Posted by singlecoillover

It's completely stock except for the LED lights and flushmount turn signals. It doesn't feel like the bars are vibrating. More like the whole bike.

The bike is used, 3000 miles on it. Just picked it up from the dealership. Other than that, I know nothing about it's history.

kkim · March 3rd, 2011, 11:48 AM

Thanks, Mike.

In that case, the bike should be gone over by you completely to make sure it's in tip top shape before even riding it, unless it came with a guaranty from the dealer. If it did, take it back to them and let them deal with anything you have concerns with on your purchase.

March 1st, 2011, 07:22 PM	#1
singlecoillover ninjette.org member Name: Barak Location: South-Central PA Join Date: Feb 2010 Motorcycle(s): 09 Ninja EX250-J Special Edition Posts: 71	Vibration Does the 08+ ninjette normally have obvious engine vibration, the worst being between 4 and 6k RPMS? As i was riding my new bike home for the first time today it seemed rather vibey. Not frighteningly so, but enough to make me wonder. It's been so long since I rode a ninjette that I really can't remember how much vibration there was. And of course my nighthawk was smooth as silk, so i can't really use that as a comparison.

March 1st, 2011, 08:17 PM	#2
Cha0s00100 ninjette.org newbie Name: Dave Location: Toronto, Ontario, Canada Join Date: Feb 2011 Motorcycle(s): 2009 Kawasaki Ninja 250r Posts: 7	Have after market bar ends ? Really need the stock heavy or as heavy bar ends on there to help keep the bar vibrations at bay. Regardless the ninja 250 is really smooth. Possible something else going on. What are the details/ history of the ninjette ? __________________________________________________

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March 1st, 2011, 08:36 PM	#3
nexus ninjee two-fiddie Name: Chance Location: Ohio Join Date: Oct 2009 Motorcycle(s): 2008 Ninja 250r Posts: 61	Do you still have stock foot pegs?

March 2nd, 2011, 07:57 AM	#4
singlecoillover ninjette.org member Name: Barak Location: South-Central PA Join Date: Feb 2010 Motorcycle(s): 09 Ninja EX250-J Special Edition Posts: 71	It's completely stock except for the LED lights and flushmount turn signals. It doesn't feel like the bars are vibrating. More like the whole bike. The bike is used, 3000 miles on it. Just picked it up from the dealership. Other than that, I know nothing about it's history.

March 2nd, 2011, 09:28 AM	#5
nexus ninjee two-fiddie Name: Chance Location: Ohio Join Date: Oct 2009 Motorcycle(s): 2008 Ninja 250r Posts: 61	Your wheels may be out if balance. Or perhaps the rear wheel is out if alignment. These problems usually cause vibration at certain speeds.

March 2nd, 2011, 11:10 AM	#6
kkim Join Date: Nov 2008 Posts: Too much.	check the engine mount bolts for proper torque.

March 2nd, 2011, 11:16 PM	#7
setasai ninjette.org certified postwhore Name: Brian Location: Detroit, MI Join Date: Jun 2010 Motorcycle(s): 2009 Ninja 250R Green Posts: A lot.	Between 4-6k rpms sounds like the engine mount bolts. I have vibrations at 8-9k rpms but all the bolts are tight so I think it might just be natural resonance. Are the vibrations felt through the bars, pegs, or seat?

March 3rd, 2011, 11:39 AM	#10
kkim Join Date: Nov 2008 Posts: Too much.	Barak, is this a "new", new bike or a "new to you", used bike? if a used bike, how many miles does it have?

March 3rd, 2011, 11:48 AM	#12
kkim Join Date: Nov 2008 Posts: Too much.	Thanks, Mike. In that case, the bike should be gone over by you completely to make sure it's in tip top shape before even riding it, unless it came with a guaranty from the dealer. If it did, take it back to them and let them deal with anything you have concerns with on your purchase.