albraak

Hi there I have a gs300 98 model that have high vibration after 120 km/hr very high at 140 km/hr .I balance the tiers and they are new but still the vibration there I change the shock absorbers and many other parts but still the vibration there . can any one tell me what make the vibration in gs300 mostly .thanks

Tammy

May I suggest you have the front alignment checked, along with the tie rods and ball joints. As you didn't state the mileage, the wheel bearings, all the suspension bushings, both front and rear, including antisway bar pivits and bushings. Insure the propeller shaft carrier bearings are not loose or worn.

Can you feel whether the vibration is in the front or rear or both? When you have the tires balanced, do they use stick-on weights or rim edge weights? Rim edge gives a better balance. Is there any tire edge wear or feathering? Do you feel excessive play in the steering rack at the steering wheel.

Have you modified the suspension with different springs or struts? (Don't think you have shocks)

droskopf1

Make sure to check the drive shaft for loose or binding u-joints.

clubfoot

My first question is did you always have the vibration and what did you change recently before you got the vibration? The other posts have covered almost all the causes of vibration. Have your wheels road forced balanced.

PR FIEBRU

rebalance the tires once again. Not everyone does it right. Try a different person