bad fuel>? just took bike out of storage?
filters clogged. air and or fuel.
cranks but does not start? cranks FAST or super slow.
"cranks fast but will not start"
has up to 10-20 causes.
if engine tests prove good (lots to fail there)
when any engine (gas) fails and is failing NOW
check spark (google or youtube how)
if spark good, try test fuel (spray can)
if this is EFI, (no such MC here USA) but if has 1 injector make sure the air supply valve is clean
ISC/IAC valve.
to find any of this, buy the motorcycles exact service manual.(SM)
when does not start open the throttle just a tiny bit and crank. this hides a bad IAC. (just this time)
it takes AIR + injections to start./ yes air can fail too.
learn how this happens, on this engine. read SM.
You can't substitute ECM like that, put a 125 ECM in a 250. The ECM is the brains, the computer of the ignition and the fuel injection system and metering of the fuel. It just won't work. Your replacement is internally programmed to run a 125 efficiently. It won't run properly and it is now probably burned out.
If the engine will not turn over then it has either seized (piston ring seizure) due to non use (most improbable in a year) or the battery is faulty. If you are getting a rapid clicking noise when the start button is pressed, the it is a battery fault or poor battery connections. Did you try and push start the bike? If you did and the engine will not turn over, then you have an engine lockup problem. If it does turn over then you have an electrical problem, most likely the battery.
A certificate of compliance is usually printed in the back of a machines owners handbook, you may find that if you don't have this registering it will be more trouble than its worth, break it and sell it for spares.
Many of our patrons are interested in saving money by repairing their cars themselves.
They know from experience that repair manuals and diagrams can make their work a lot easier.
When their local library doesn't have the manual they need, they decide to see if they can
save a little more money by finding a free copy of the manual or diagram on the Internet.
Unfortunately, these materials are almost NEVER available on the Internet for free! The
reason for this is that the people who publish the manuals and own the copyright aren't
about to give the material away free--they want to get paid for their work!! Also, many of
the manuals are so large, it would be very costly to place them online and store all the
Web pages or provide access to them from a database.
The Internet, though, has a large number of web sites where you can buy service manuals
and schematics from bookstores, publishers, and other collectors. Here is just a sampling
of what sites are out there:
Chilton Repair Manuals
http://www.chilton.cengage.com/
Factory Automanuals
http://www.factoryautomanuals.com/
Haynes Repair manuals
http://www.haynes.com/
AutoLit.com
http://www.autolit.com/home.htm
RepairManual.com
http://www.repairmanual.com/
You may also want to check out Yahoo's category for Automotive Booksellers, or more general
on-line bookstores such as Amazon.com.Don't forget that public libraries are also great places
to find such manuals -- many libraries have them in print or on cd-roms. They may also be able
to get the manual or diagram you need from another library if you use their Interlibrary Loan
Service. Not every library offers this service, but it never hurts to ask if they do!
Finally, there are many web sites out there where you can at least ask an automobile expert for
advice. AutoGuide.net's Automotive Advice category is a good starting point for finding these
services.
