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It sounds like to me that the slave cylinder { If it is close to the engines gearbox} it might b getting to hot. How is the oil in the gearbox? It could be overheating !!!!!
Normally when replacing gears in a gearbox, bike or car, the meshing must be checked to ensure that it is within specificatiom If the play is too great, the mating gear is normally replaced at the same time. A humming noise sounds like a mainshaft or layshaft journal bearing is damaged. If it was a HarleyDavidson or British Bike, it will probably go on for a number of years as they were built to last. I don't understand why the gearbox would need repair if it was a chain problem!
Being a Japanese bike and a recent repair, I would get it checked out with an authorized dealer.
sounds like you have something lose or broken in gearbox..or clutch or kickstart workings.....i would not ride this bike till you know for sure whats up & its fixed!!....1st thing to try is take clutch cover off & inspect to see if you can see anything broke ..this does need pulling down to sort as the bike may well do again when riding it...you may even need to pull the gearbox.cluster out/in bits to check..this means engine out & pull in bits......
Problems associated with low power steering fluid… Hard Vehicle Steering A low power steering fluid level can often times cause a vehicle's steering to become hard and labored. Adequate amounts of power steering fluid are necessary to enable a vehicle's power steering system to function and operate at optimum levels. A lack of power steering fluid in a vehicle's power steering system reduces the amount of hydraulic fluid pressure necessary to efficiently operating the various parts of the entire power steering system. Power steering fluid supplies the fluid force needed to operate the power steering gears and to enable power steering gearbox operation. Low power steering fluid levels reduce this hydraulic pressure, which commonly results in hard vehicle steering. Pump Noise It is very common for a low power steering fluid level to cause significant power steering pump noise. An adequate amount of power steering fluid is required to ensure the proper function and longevity of a power steering pump unit, which is a belt-driven pump responsible for housing and circulating power steering pump fluid. A low level of power steering fluid results in increased power steering pump friction, heat, and wear, all of which can significantly reduce the operational life of the power steering pump while at the same time cause excessive power steering pump noise. Fluid Boiling
Many times a low power steering fluid level can result in excessive heating of power steering fluid, a condition that can seriously degrade the fluid and cause it to boil. A low power steering fluid level results in less available fluid to both lubricate and cool a power steering pump unit. A lack of power steering pump lubrication and cooling leads to excessive heat being generated within the power steering pump unit itself, a condition that translates into the available level of power steering fluid becoming super-heated and degraded. When this happens it is common for the power steering fluid to boil and lose all of its lubricating and heat-reducing capabilities.
Gearbox Wear
The power steering gearbox is a set of gears within a vehicle's power steering system designed to facilitate movement of a vehicle's front wheels. The power steering gearbox is connected to the power steering pump by hydraulic fluid lines that deliver a constant supply of power steering fluid to the power steering gearbox. A low power steering fluid level, especially a chronic and severe low power steering fluid level, can lead to increased friction and wear within the power steering gearbox assembly, a condition that can significantly shorten the operational life of the power steering gearbox and negatively affect its operation
Check the oil level in the gearbox. The only thing that would make that kind of noise is a bearing going dry / bad. Use 10w40 motor oil in the gearbox. NEVER use synthetic oil. Synthetics can screw up the clutch.
Your bike may need the harmonic balancer chain adjusted. Th will notice is noise is very prominent at engine idle and low RPM's. When this chain get lose you will feel the vibration even in the handlebars if it is loose enough.
but no there was definitely a loud whirring noise in 5th gear sort of like a very noisy bearing. The bike still ran in 5th but it was definately becomming increasingly noisy. When I changed down to 4th the noise went away even if I slowed to the rev range I had been cruising in 5th. Same story with the other gears, but the noise returned with a vengence in 5th. Needless to say I rode the rest of the way home in avoiding 5th.
Any ideas? I suppose I'm looking at a gearbox strip? Could the noise be anything else? ,Had a similar issue with my 1000S, only 5th gear was noisy - a sound like a dry bearing -other gears were silent. Bike had done 70,000kms and serviced correctly.
Had Barry from IME check it out. Turned out to be both 5th gears needed replacing - looked like the case hardening on the gear faces was eroding and pitting.
New gears went in and the box properly shimmed and happy to say 6000 kms later all still silent in the gearbox department. Plus the added benefit of slicker gear changes.,,,
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