It sounds like Algae an that can be treated with an algaecide. If the filter element is still in reasonable condition you can get get cartrige filter element cleaners that will save you having to buy another one, and get it flowing properly again
Yes because the fuel required by the engine is restricted thus slowing it down.
The oil filter is there to trap any tiny particles that are in the oil. You change it because it becomes dirty over time. Change the oil at every oil change.
check to make sure that you have the right amount and type of transmission fluid, that it is in good condition not dark or burnt smelling, if so change. change fluid and clean filter.
You can't because it does not have one
The oil filter is located at the back of the Yamaha but be careful because you could seriously injur yourself when trying to change the filter of the oil because it's bad.
change a pollen filter
They probably are growing algae (yellow and green). You probably need more chlorine.
ANS1Yes, but this is not recommended. You will lose some oil in the process of changing the filter, so check your oil before you start the engine and add what is needed.ANS2I suggest that you always change the filter before you change the oil. Change the filter with the oil still in the crankcase, that way if the new filter doesn't fit you can put the old filter back on and drive back to the parts store to exchange the filter for the right one. If you change your oil first, the new oil will be contaminated by the old oil in the filter if you have to put it back on to drive the car to get the right filter.As Ans1 says, it is not recommended to change the filter without changing the oil. You are changing the oil, not because the oil is dirty, but because it is chemically changed by use and will not properly protect your engine.
By not changing it, because it does not exist.
Because the salt solution is monophasic; filtering is applied when a precipitate exist.
. 850ml withou filter and 950 with oil filter change
When its dirty you need to change the filter.