Thumper Club Forum

Technical => Bike Problems/Questions => Topic started by: ONE LUNGER on May 09, 2009, 07:50:24 AM

Title: DRZ 400S BAD VIBES!!
Post by: ONE LUNGER on May 09, 2009, 07:50:24 AM

Hello, Ive got a 2007 Suzuki DRZ 400S and when on long straight roads at about 70-75 mph I get a constant annoying vibration that comes and goes every 2 or 3 seconds. Its really annoying as i've not experienced this kind of vibe before. Is it normal on these bikes?  :o

Any advice greatly appreciated, cheers.  ???

Jon

Title: Re: DRZ 400S BAD VIBES!!
Post by: beeman on May 10, 2009, 12:13:15 AM

Could well be normal. have you checked the rpm and then used a different gear at the same revs. Does the same vibrations occur. If so its the engine, if it only happens at the road speed in a different gear then it is the drive train or tyres etc.
In my personal opinion it is probably normal, the fix is to go faster (or slower so it dosn't occur)
In much the same way that ear plugs make rattly engines go quiet! 8) 8)
beeman

Title: Re: DRZ 400S BAD VIBES!!
Post by: bullet350 on May 12, 2009, 03:37:36 PM

 knobbly tyres are good for this, due to loads of tread and uneven wear (usually 'flat-spots' caused by skidding the back tyre).

 a tight spot in a chain can also cause this (even when run slack).

 bullet350