Magna Owners Of Texas

Public Forums => The Garage => Topic started by: bunpajay on April 30, 2009, 09:32:24 PM

Title: V65 Vibration
Post by: bunpajay on April 30, 2009, 09:32:24 PM
Hello everyone, I am a new member!!!
I purchased a 1984 V65 for my wife (I already have one) It has 14K miles and seems to be in great shape, No valve noise ect. It does however have a vibration from about 4000 to 6000 that I dont have in mine. You can feel it in the bars and on your feet and it makes the mirrors blurry. In the few weeks we have owned it I have replaced the fork seals, Oil,Exhaust gaskets,Hypiod oil,antifreeze, air filter and spark plugs. Otherwise the bike runs and rides great, Anyone have suggestions?? Thanks in advance
Jay
Title: Re: V65 Vibration
Post by: 95magna on April 30, 2009, 09:44:23 PM
first thing i would check would be the front tire,even if it has good tread doesn't always mean its a good tire




Quote from: bumpajay on April 30, 2009, 09:32:24 PM
Hello everyone, I am a new member!!!
I purchased a 1984 V65 for my wife (I already have one) It has 14K miles and seems to be in great shape, No valve noise ect. It does however have a vibration from about 4000 to 6000 that I dont have in mine. You can feel it in the bars and on your feet and it makes the mirrors blurry. In the few weeks we have owned it I have replaced the fork seals, Oil,Exhaust gaskets,Hypiod oil,antifreeze, air filter and spark plugs. Otherwise the bike runs and rides great, Anyone have suggestions?? Thanks in advance
Jay
Title: Re: V65 Vibration
Post by: hootmon on April 30, 2009, 10:22:46 PM
Is the vibration when the bike is standing still (motor vibration) or when rolling..
This may not be it, but something you REALLY need to check on both bikes..
The V65's had faulty fork braces.. They are known to crack and even break, which has caused crashes...

BTW... Welcome from Safety Harbor Florida..
Go ahead and fill in some information in your signature line, or with your Avatar picture - Like Bikes you own and your location...


Title: Re: V65 Vibration
Post by: Charles S Otwell on April 30, 2009, 11:39:39 PM
Welcome to MooT, there ar several V-65 guru's here so hang in, and they will chime in shortly, again welcome to MooT..
Title: Re: V65 Vibration
Post by: captain2207 on May 01, 2009, 06:46:10 AM
wewlcome i also have a v65 w vibration at about 100 getting new fork brace will post results
Title: Re: V65 Vibration
Post by: Jumbobret on May 01, 2009, 05:14:03 PM
Have front tire checked for balance and take a good hard look at front fork brace for stress cracks. :lol:
Title: Re: V65 Vibration
Post by: silveradocowboy on May 01, 2009, 10:02:04 PM
Does the bike have the vibration in that rpm range in every gear? sitting still?

Could be a number of things so I'll name a few things to check...
Tires - check the age, pressure, and for any deformity such as scalloping.
Engine mount bolts - check for correct torque, overtightening can cause vibration.
Drive shaft - the shaft contains fluid which acts as a dampener.
Swing arm & steering stem bearings - check for play.
Engine - check that all 4 cylinders are firing.
Title: Re: V65 Vibration
Post by: bunpajay on May 11, 2009, 10:51:12 PM
ok, A little more info, I have added a fork brace, The engine is firing on all 4 cyl. I had to replace the exhaust seals after purchasing the bike do to a leak at the rear exhaust ports. It was a real Bitch to get back on, Not like my own that after cleaning and new seals slid rite on. Could the exhaust or exhaust mounts be causing the problem? I know about the inner and outer walls problem, have already had mine welded, its not that, I took hers out for a ride the other day and I placed my feet on the outer cases of the motor and didn't feel the vibration as bad as I did on the foot pegs (especially the rt one) and the handle bars....Also replaced the front tire last week with no improvement other then better handling.....Hers also feels tighter in the front than mine......like I can feel more of the road......
Title: Re: V65 Vibration
Post by: Charles S Otwell on May 11, 2009, 10:57:45 PM
Have you checked the front wheel bearings?
Title: Re: V65 Vibration
Post by: bunpajay on May 12, 2009, 07:12:19 PM
I have not checked the front wheel bearings, I will do that thanks!
Title: Re: V65 Vibration
Post by: bunpajay on May 12, 2009, 07:16:08 PM
Also thanks for the idea of the the motor mounts and stem bearings, I will check those as well!!!! I first thought of the motor mounts but have not seen any posts of problems with them.......
Title: Re: V65 Vibration
Post by: TLRam1 on May 12, 2009, 07:21:46 PM
Quote from: bumpajay on April 30, 2009, 09:32:24 PM
It does however have a vibration from about 4000 to 6000 that I dont have in mine.

Let me ask you, does it vibrate in regards to speed or just RPM speed of the motor? If you are sitting on the bike in the driveway with the motor reved do you have the vibration? This would isolate whether it is in the motor or the drive train/frame/wheels. If it happens while sitting still something could be out of whack internally.