Unusual vibrations
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I'm guessing my new bike has been recently rebuilt by the looks of the sealer around the engine casing however i seem to have a vibration that seems to come right up through the bike i thought it was possibly the nobbly tyres so ive replaced them however the vibrations still there so I'm wondering if the balancer shaft would do this any help would be much appreciated feels like it has a speed wobble at 60mph
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Yeah the balancer shaft MUST be timed up with the engine else you will get massive vibrations through the handlebars. Like hand numbimg vibrations.
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@Calum guessing that will be the issue here then
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Yeah, there is a dot on both the primary gear and the balancer shaft output gear.
When the piston is at TDC those two dots should be aligned.
To be honest, it should be possible to reallign it with the engine in the frame, and really isn't that big of a job.
Obviously you won't know where TDC is, but just turn the cogs until they the primary shaft dot is on the left on the horizontal plane. The slide in the balancer shaft cog. No biggie.
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@Calum thanks mate sounds easy enough I'll try get it apart over the next couple of days i have noticed even just on idle you can feel the vibration so its looking like thats all the problem is
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Check they balanced the clutch properly as this also causes vibration if not built correctly,good luck bud
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Ah yeah forgot about the clutch.
I know when it's really bad your hands go numb, that tends to be the balancer shaft.
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This look about right? -
@andrewj1680 Perfect.
As said redo the clutch plates and ensure the clutch has been balanced properly.
I forgot about that.
If it's not that , then just ensure all the engine mounts are done up properly.
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Thanks lads i think this maybe the cause of my vibrations what do you guys think? Looks like someone has stuck it with something -
@andrewj1680 also a couple of teeth missing on the water cog
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@andrewj1680 Yep they do look a tad FOOKED for-sure!!!
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I dont understand why someone would go through whole process of rebuilding a engine and the to glue a plastic cog which ive just ordered new is only £13 gets me
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@andrewj1680 Ah has it come away then?
That doesn't look good. Best replace those cogs.
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Its only the waterpump 1 whatever theey used to glue it has melted the propeller so it must of been running at nearly a 45 degree angle nowonder i had vibrations, just not sure if i am able to get the oil baffle plate as its bent it
