I thought may be oil and changed it recently (mobil1 15-50) but didn't help. Bike has 25k mi.How long since you changed oil? Shifting gets rough when your oil starts to break down. How many miles on bike?
Yeah, i believe that covers the shift rod as well.The sprocket cover?
Is the 15W50 for motorcycles? If not then that's your problem. You need a motorcycle specific oil for bikes. They provide the wet clutch protection that a normal oil does not.I thought may be oil and changed it recently (mobil1 15-50) but didn't help. Bike has 25k mi.
No you don't. Just about any oil is adequate. There is one specific type not to use but I forget what.Is the 15W50 for motorcycles? If not then that's your problem. You need a motorcycle specific oil for bikes. They provide the wet clutch protection that a normal oil does not.
It still needs to meet the motorcycle oil rating specifications and no energy conserving friction modifiers.No you don't. Just about any oil is adequate. There is one specific type not to use but I forget what.
You are getting ripped off at motorcycle shops if that is what you buy.
You don't necessarily need oil that is marketed as motorcycle-specific oil. If you find on the label that it is JASO-MA certified, then it means it is safe for use with motorcycles with wet clutches and that use the engine oil in the transmission. For example, I use Rotella T6 full synthetic for only about $22/gallon. It's actually primarily marketed as a diesel engine oil, and not at all as a motorcycle oil, but it is JASO-MA certified.You need a motorcycle specific oil for bikes.
If you had the wrong kind of oil, the problem would more likely be a slipping clutch, not clunky/grinding shifts.JASO MA
Japanese standard for special oil which can be used in 4-stroke motorcycle engine with one oilsystem for engine, gearbox and wet clutchsystem. Fluid is non-friction modified.