Vibration!!!!!!

Gyrene · May 9th, 2010, 06:16 PM

My 2004 Ninja 250 vibrates like crazy the faster I go, not shaking but vibration. It get's so bad that on long rides my hands become numb, especially my fingers. It is as though my fingers are falling asleep. I know that on 250's this is the norm but is there any recommendations on a way to reduce the amount of "felt" vibration? Would foam grips help? I feel like I have carpel tunnel going on in my wrists after only 350 miles on the bike.

kkim · May 9th, 2010, 07:44 PM

make sure your motor mounts are tight.

JeffM · May 10th, 2010, 06:36 AM

I was very surprised to find all three of my engine mount bolts had come loose. The two rear ones have nuts and the front one goes into a blind nut that is welded to the frame. If they are loose, use some Loctite when you re secure them.

nosro · May 17th, 2010, 07:42 AM

I was also surprised by how loose my engine mount bolts were. At 6000 miles, the bolts have needed to be retightened three times. At one point, one of the bolts was so loose that it was nearly "finger" tight. I'm using blue Loctite next time.

Use a torque wrench.

http://faq.ninja250.org/wiki/Checkin...ne_mount_bolts

03slime250 · May 25th, 2010, 09:44 PM

do you have bar ends on it?

longhorn · May 28th, 2010, 11:58 PM

After only 350 miles! It's a sport bike not a cruiser, much over 100 miles is cruel and unusual punishment on a ninjette. I admire your tenacity. It shouldn't vibrate that much, mine doesn't. But as the others said "check engine bolts" first, don't grip the bars; just hold them gently and if all that fails think of changing out the gearing (see posts on "Sprockets" above).

komohana · May 29th, 2010, 12:44 AM

Quote:

Originally Posted by Gyrene

My 2004 Ninja 250 vibrates like crazy the faster I go, not shaking but vibration. It get's so bad that on long rides my hands become numb, especially my fingers. It is as though my fingers are falling asleep. I know that on 250's this is the norm but is there any recommendations on a way to reduce the amount of "felt" vibration? Would foam grips help? I feel like I have carpel tunnel going on in my wrists after only 350 miles on the bike.

so .. did ya find out what's causing the bad vibes?

FrugalNinja250 · June 2nd, 2010, 10:55 AM

High frequency vibrations I think are norm for this bike; it's very hard to get a smooth two cylinder motor unless they're opposed pistons like BMW. I've got the stock bars and bar end weights on my '06, but run gel grips and gel gloves. When I ride I don't grip the bars; a tight grip transmits more vibration energy into my hands. Since going with gel grips and modifying my hand position I haven't had any problems with numbness or fatigue. I may fill the bars with steel or lead shot in the future just to see what happens.

May 9th, 2010, 06:16 PM	#1
Gyrene ninjette.org member Name: Chris Location: Florida Join Date: Apr 2010 Motorcycle(s): 2004 Ninja 250 Posts: 39	Vibration!!!!!! My 2004 Ninja 250 vibrates like crazy the faster I go, not shaking but vibration. It get's so bad that on long rides my hands become numb, especially my fingers. It is as though my fingers are falling asleep. I know that on 250's this is the norm but is there any recommendations on a way to reduce the amount of "felt" vibration? Would foam grips help? I feel like I have carpel tunnel going on in my wrists after only 350 miles on the bike. __________________________________________________ YouTube Most motorcycle problems are caused by the nut that connects the handlebars to the saddle.

May 28th, 2010, 11:58 PM	#6
longhorn ninjette.org member Name: Nick Location: Tucson Join Date: May 2010 Motorcycle(s): 2009 Ninja 250R Posts: 20	Vibration!!! After only 350 miles! It's a sport bike not a cruiser, much over 100 miles is cruel and unusual punishment on a ninjette. I admire your tenacity. It shouldn't vibrate that much, mine doesn't. But as the others said "check engine bolts" first, don't grip the bars; just hold them gently and if all that fails think of changing out the gearing (see posts on "Sprockets" above).

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May 9th, 2010, 07:44 PM	#2
kkim Join Date: Nov 2008 Posts: Too much.	make sure your motor mounts are tight.

May 10th, 2010, 06:36 AM	#3
JeffM Mr. 988 Name: Jeff Location: Sandy, Utah Join Date: Aug 2009 Motorcycle(s): One Posts: A lot. Blog Entries: 1	I was very surprised to find all three of my engine mount bolts had come loose. The two rear ones have nuts and the front one goes into a blind nut that is welded to the frame. If they are loose, use some Loctite when you re secure them.

May 17th, 2010, 07:42 AM	#4
nosro ninjette.org newbie Name: Orson Location: Detroit Join Date: Apr 2010 Motorcycle(s): 2006 ex250 Posts: 2	I was also surprised by how loose my engine mount bolts were. At 6000 miles, the bolts have needed to be retightened three times. At one point, one of the bolts was so loose that it was nearly "finger" tight. I'm using blue Loctite next time. Use a torque wrench. http://faq.ninja250.org/wiki/Checkin...ne_mount_bolts

May 25th, 2010, 09:44 PM	#5
03slime250 ninjette.org member Name: dakota Location: northwest arkansas Join Date: May 2010 Motorcycle(s): 2003 ninja 250 Posts: 61	do you have bar ends on it?

June 2nd, 2010, 10:55 AM	#8
FrugalNinja250 ninjette.org certified postwhore Name: Frugal Location: Dallas/Fort Worth (DFW) Join Date: Mar 2010 Motorcycle(s): Several Posts: A lot.	High frequency vibrations I think are norm for this bike; it's very hard to get a smooth two cylinder motor unless they're opposed pistons like BMW. I've got the stock bars and bar end weights on my '06, but run gel grips and gel gloves. When I ride I don't grip the bars; a tight grip transmits more vibration energy into my hands. Since going with gel grips and modifying my hand position I haven't had any problems with numbness or fatigue. I may fill the bars with steel or lead shot in the future just to see what happens.