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Posted by misiek735
- August 12, 2022, 06:52:18 AMHello!
I bought a 1999 Drifter 1500. Unfortunately I experience huge vibrations in the front headlight, handlebar, mirrors, windshield and registration plate holder. The vibrations are happening not during driving, they are already noticeable while the engine works in idle. Please watch the video in the highest resolution with the highest fps setting:
1st video:
https://youtu.be/-rmA-ASH2bY
2nd video, higher stable rpm:
https://youtu.be/apvuN9-3UpI
- The engine fluids and the driveshaft fluids as well as the filters has been replaced.
- The sparkplugs has been replaced.
- The engine mount dumper and the bolts are ok, tightened to the correct torque.
- I checked if the mark on the gear balancer (16085-1286) is "in line" with the rotor (21007-1354)- that's on the left side of the engine (generator).
- The nuts of the rear suspension and the exhaust are tightened to the correct torque.
- The bearings of the front fork are ok.
- The compression on the front and rear cylinders are the same.
The next thing which I want to do (and I hope it will solve this issue), is to ship the entire clutch (including the housing comp clutch, plates, needle bearing (92046-1175) etc.) to a specialized company which regenerates clutches. They can decide if some elements of the clutch are necessary to replace and they own some special machine which checks if the clutch is well balanced. Just to let you know, the clutch is making more noise when the clutch lever is not squeezed. When I squeeze it then it's more quiet - I checked the direction of the sound with the stethoscope. The clutch itself works perfectly ok while driving the motorcycle, but I noticed that the 2nd and the 3rd gear likes to do some rattling noise while engaging, as well as those gears does not engage as easy as 4th or 5th gear.
Apart from all this stuffs that I checked, I have no idea what else could cause the vibration issue. I also plan to take a look at the timing chain, because I can see that the camshaft chain tensioner has only 3 "teeth" left to be fully extended. I did not check if the timing chain itself is properly mounted to its signs, I guess it is because the engine works...
At the time of writing this post, I also own Drifter 800 from 1999. There are no vibrations at all, driving this motorcycle during the last 8 years was and still is a pleasure.
I cannot believe, that Drifter 1500 vibrates so much, that after 1h of driving I don't feel my hands. On the 5th gear at 80 km/h I cannot see anything in the mirrors - not even mentioning the headlight visibility in the nights...
Any suggestion will be highly appreciated.