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Old 19-04-18, 17:39
hannesd hannesd is offline
Expert XT-Moto
 
Join Date: Jan 2018
Location: Waardamme
Posts: 151
hannesd is on a distinguished road
increased vibration in hadlebars and footpegs

i noticed that my engine was smoother between 4-5000rpm, before i did an oil change.
previous had 10w40 in it and now i went for motorex 15w50.
now the bikes pretty vibey that it bothers me...
can an oil change to a different viscosity cause this?
i also suspect some oil consumption with the 15w50, didn't notice this with the 10w40, but didn't do many miles with the 10w40.
i bought the bike like this and changed oil after about 1500km.

valves make no sound, idles well without any extra noises. runs smooth upto 3-3500rpm

bike has a pipercross filter, decat original exhaust, fuel mod, fresh spark plug.
(come to think f it, i did change to CR7EIX, coming from original spark plug)

can't really say when exactly it changed...

any suggestions bases on real life experiances.
i did come up with the idea myself to change il back to 10w40, thank you

ciao, Hannes.