20 Most Recent
1985 Yamaha XS 400 Questions & Answers
When its cold it starts without problems. i cant
Check the valve lash. Sometimes, if the clearances get too tight, when the valves are hot the get long enough that they won't seat properly. I don't have the manual, but I'll bet .003 on the exhaust and .002 on the intakes are close. Put the motor at TDC and check them with a feeler gauge.
If they're not within tolerance, find the factory specs and proceedure for adjustment. This is an often overlooked part of routine maintenance. Good luck!
How do I set the timing and ajust the valvs on my
the only way to change the valve timings are to adjust the iming chan=in(by removing or adding links) or to change to a different camshaft that can be retrofitted from another bike of same caagory.
How do I expose the oil filter and the air filter
The oil filter is a paper element on the right side of the engine behind a little round cover. Should be somewhere on the lower crankcase. The air filter is in the air box which may be a little tricky to get to. You will need to remove the seat, and possibly the gas tank to remove the air box to get to it.
Genral oil change
1.Get your supplies ready, and expose your engine
2.Unscrew the Oil Filler Cap
3.Remove the Oil Drain Plug
4.Remove and Replace the Crush Washer
5.Clean the Oil Drain Plug
6.Remove the Oil Filter
7.Remove and Clean Plastic Mesh Filter
8.Lubricate the O-ring of the New Filter and Attach it to the Engine
9.Motorcycle Oil Change - Replace Oil Drain Plug & Plastic Mesh Filter, Pour Oil
10.Check the Oil Level
What kind of oil to
its best to use a good oil especially on older bikes i use amsoil 20/50 it cost more but is best
My Yamaha xs400 is in
bulb may be bad-testit for lighting--hard to tell just by lookin--may hav flaw in harness-inspecting takes time--make sure all fuses are sound
I have a 1981 yamaha
Hi.
The symptoms are those of a defective CDI unit.
Here the part. Ensure that spark plugs, coil and wiring and all the rest is OK before replacing CDI.
Regards.
Ginko
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