Vibration Help.
Vibration Help.
Hi guys,
I just took my newly-purchased 1990 CR500 out to the desert this weekend and loved the bike except for one thing - EXCESSIVE Vibration! I have owned a CR500 before so I know that vibration and the CR500 come hand in hand. However, it seems to be much more apparent on this bike than others I have ridden because the thing will vibrate right through the bars and up for your arms.
My father installed pro taper bars and the Scott's steering stablizer set up so I am not exactly sure what the problem may be.
My question to you- Are there any rubber mounts of any kind or any aftermarket products that could be installed in order to buffer out the vibration on this beast? Thanks in advance for the insight.
I just took my newly-purchased 1990 CR500 out to the desert this weekend and loved the bike except for one thing - EXCESSIVE Vibration! I have owned a CR500 before so I know that vibration and the CR500 come hand in hand. However, it seems to be much more apparent on this bike than others I have ridden because the thing will vibrate right through the bars and up for your arms.
My father installed pro taper bars and the Scott's steering stablizer set up so I am not exactly sure what the problem may be.
My question to you- Are there any rubber mounts of any kind or any aftermarket products that could be installed in order to buffer out the vibration on this beast? Thanks in advance for the insight.
There could be several things that make it vibrate, motor mounts loose,
pipe rubbing on something, motor in a bind in the mounts, or crank bearings, more than likely if it has not had crank bearings since 1990
that is proably your problem. hope this helps......
pipe rubbing on something, motor in a bind in the mounts, or crank bearings, more than likely if it has not had crank bearings since 1990
that is proably your problem. hope this helps......
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- britincali
- Posts: 8207
- Joined: May 31st, 2007, 7:10 pm
- Location: Barstow, CA
pstoffers wrote:There could be several things that make it vibrate, motor mounts loose,
pipe rubbing on something, motor in a bind in the mounts, or crank bearings, more than likely if it has not had crank bearings since 1990
that is proably your problem. hope this helps......
Coolness list by 90cr500guy
Bob's = 50/50
Cepek = cool
Solidbro = cool
Brit = loser
Stoffer = 1 up from Brit
MFDB = cool
Danny = ok
Bob's = 50/50
Cepek = cool
Solidbro = cool
Brit = loser
Stoffer = 1 up from Brit
MFDB = cool
Danny = ok
- iggys-amsoil
- Posts: 3602
- Joined: June 1st, 2007, 6:09 pm
- Location: Just North of March Airfield CA
Crank bearings? Possible, see if there is any up and down movement at the flywheel, then try the easy stuff.
Loosen the motors mounts, is there a gap of .030-.060 or larger? Add washers as nessessary.
Is the pilot jet to rich?
While your at it, pull the reed cage off and check for a cracked piston.
Loosen the motors mounts, is there a gap of .030-.060 or larger? Add washers as nessessary.
Is the pilot jet to rich?
While your at it, pull the reed cage off and check for a cracked piston.
Trinity Racing mild porting FMF
62 pilot, EGH needle, 172 main
03 Gen III CR250 frame
2013 Dodger Charger 5.7 Hemi
http://www.prisonplanet.com
Your Amsoil Customer # 350882
62 pilot, EGH needle, 172 main
03 Gen III CR250 frame
2013 Dodger Charger 5.7 Hemi
http://www.prisonplanet.com
Your Amsoil Customer # 350882
- redrocket190
- Posts: 1229
- Joined: September 17th, 2007, 9:07 pm
- Location: San Clemente, CA
I had the same problem with my '95 model when I got it.
Checked the engine mounting bolts and EVERY SINGLE ONE was loose!
Also had to weld-up and fabricate some new exhaust brackets.
I don't think the previous owner knew what he was doing!
Vibrations should be a lot less if the engine's tightly bolted in the frame and the exhaust is bolted-up with all the proper gaskets / rubber buffers etc.
If you've still got vibes, something's worn or out-of balance in the motor.
My bike has rubber buffer inserts where the handlebar clamps bolt onto the top yolk, but the vibes were still really bad until the engine and exhaust were bolted in properly.
Good luck!
Checked the engine mounting bolts and EVERY SINGLE ONE was loose!
Also had to weld-up and fabricate some new exhaust brackets.
I don't think the previous owner knew what he was doing!
Vibrations should be a lot less if the engine's tightly bolted in the frame and the exhaust is bolted-up with all the proper gaskets / rubber buffers etc.
If you've still got vibes, something's worn or out-of balance in the motor.
My bike has rubber buffer inserts where the handlebar clamps bolt onto the top yolk, but the vibes were still really bad until the engine and exhaust were bolted in properly.
Good luck!
'95 CR500 (which my partner doesn't know about!)
'00 Husaberg FC600
YEEEEHHHA!
'00 Husaberg FC600
YEEEEHHHA!