Hello guys! I want to do maintenance fuel system and some other next week and i have couple questions:
What need I do?
I think to do next operations:
1. Clean fuel injection
2. Replace fuel filter in tank, it didn't replace after the release of the factory)))
3. Change oil in engine
4. Change spark plugs
5. adjustment valves (need new gasket?)
6. verification of TPS
May be need something else?
Others have already talked about 4 & 5.
3 needs no comment.
6, unless you have a PowerCommander, you can't change it, but you can check it.
Unless you have hit and damaged the sensor, you are most likely wasting your time trying to check it.
1 & 2, now this is very interesting to me.
I know nothing about gasoline quality in the Moscow area.
Good quality gasolines in Canada and USA from the big companies, is very good and clean and with very good additive package to keep deposits to a minimum. If your gasoline is similar, then you should not have to clean your F I system or change the fuel filter.
If your bike runs very well, makes good power, gets good kilometres from a tank of gas, idles nice, starts well, then your F I should still be clean. If your plugs look very clean, that is another indication of things being good.
One way to find out about your local gasoline, is to go talk to a BMW car dealer.
They will know about the gasoline that their customers are using.
They may be able to tell you what brand is good local to you, or what to avoid.
If the BMW service department does not have to do fuel injector cleaning of the cars they sell in Moscow, that run on Moscow area gasoline, then you need not worry.
Over here, off brand or "no name" gasoline can be 1) good with weaker additive package, 2) not very good with weak additive package, 3) good with good additive package. Lots of 1 &2, less of 3.