CJ750
Breaking in Process:
The
CJ750 requires correct breaking in to ensure that the
engine will be at its optimum performance and reliability.
Normally we recommend that the CJ750 travel at speeds
of no more than 60km/h for the first 1,000km. We know
you want to ride fast asap, however it is best to extend
the breaking in process to 2,000km to ensure that the
engine will be broken in properly. A properly broken
in CJ750 will last you many miles and importantly give
you a much better performance.
It
is recommended that for the first 500km, the CJ750 be
ridden at low rpm and also carry only a light load with
top speed of 40km/h. At this stage you will find that
screws may start to come loose and also the bike may
run a bit rough due to teething of gears. The carburetors
and gear pins may (will usually) need some adjustments
to ensure smooth running.
For
the second half of the breaking in process we recommend
a medium rpm and occasional high rpm. It is advisable
to increase speeds slowly to the maximum suggested and
then slowly decelerate and accelerate. Do not ride it
a high rpm or at a fixed speed for an extended period
of time.
During
this breaking in process it is vital to check your oil
and do not let your engine get overheated especially
in the first stages when everything is new and tight.
It is recommended that the engine stays below 180C degrees.
Do not go for extended rides as it will put lots of
stress on your engine. Also check your gasket head bolts
to make sure that they are tight because they are newly
fitted bolts and screws may come loose.
Do
not use straight pipes, use pipes with mufflers for
back compression. Straights pipes may cause excessive
wear on your valves and you will also lack power at
high speeds or even a lack of top speed.
Change
the oil at the first 500km, and keep constant check
on oil level. New engines will burn oil faster till
it is broken in.
Check
your spark plugs to make sure that the carburetors are
not too lean or too rich. Excessive caking will cause
poor sparking thus effecting your CJ750 engine performance.
A
properly broken in bike will operate with maximum performance
which includes fuel efficiency, less oil burning, and
a longer lasting engine life.
Carburetor
speed limiter:
For
those that have the traditional Carburetors, there is
a speed limited screw in the carburetor to keep you
from going too fast. Once your CJ750 is broken in you
may remove it and cut the extended screws.
Break-in
secret:
This
is a small trick that we use to break in our bikes which
can also be used for cars. For 32hp bikes ride it up
to 50kmh and switch the key ignition off thus letting
the engine pull the motorcycle to a stop. For 24 we
speed it up to about 40kmh. Do this a few times and
the engine and valves will break in faster.
For more information and professional tips, you can
contact Jim Bryant (www.mycj750.com
or jim@way2prc.com).
Bill Eng is on MSN almost 24/7 at: cj750net@hotmail.com
For those that are do not have a hotmail address, you
can sign up to MSN Passport and use any email address
to chat on MSN Messenger. In the USA you can contact
Greg at: www.scooterbob.com
or email him directly at: scooterbob@scooterbob.com.
Written
by Chang Jiang 750 riders for Chang Jiang 750 riders!
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