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Crap -- noise/wobble
GP Racer
Kayaus's Avatar
Posts: 1,319
Join Date: June 11, 2009
Location: ALABAMA
Angry Crap -- noise/wobble - July 13, 2009, 12:20 PM

There has been an increasing noise and wobble coming from my bike in low RPM and under neutral braking. I noticed it on Friday and have not had time to look into it in detail, this afternoons ride back from lunch it became significantly more noticeable. Description, best I can. (better than "bike makes noises"

Idle is normal, run the RPM's up in neutral and all is normal.
First gear start is good until about 2500 and a heavy wobble can be felt in the engine (no bounce in the suspension, not effecting steering). The wobble will decrease and go away as the RPM's climb and gone over 5000.
Clutch pull to shift and wobble is back, heavy.
Up shift and the same, have wobble at low end, and dissipates and RPM increases.

Slowing for a stop the wobble is more noticeable, in neutral. Engine braking does not show the effect.

Ilde at a stop and the bike seems fine.

So, just gathering info, going to scour some resources tonight, grab my clymers manual and start reading.

Bike: 1983 Honda VF750F (40,000miles)
Clean fluids (oil change due in about 400miles)
New foam air filter
New Spark
New Tire
(not that any of the above has any bearing on this noise, but it is asked "what have you done/changed recently)

Thanks in advance for any advice on this one.
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