to the world of owning a Chang Jiang 750. We hope
that you bought a legally licensed CJ750 sidecar
and have all your documents updated, such as insurance,
road tax, etc. The CJ750 is very old motorcycle
technology that is going to take some special
handling and should be treated as an old antique
motorcycle. A CJ750 sidecar does not ride like
a two wheel motorcycle. Read our FAQ on performance
about all the little problems of these sidecars. The first 500KM will be very testing for new owners, screws will come loose, the engine will expand and reset, etc..
are many groups riding every weekend so please
send us your e-mail and we will put you on our
list. If you live out in ShunYi you may also contact
of the Beijing
Dragons for ride information. For our riders
in the city, we ride on the weekends with groups
such as the Wang Xin, Lao Ren, Mountain Eagles,
FXZ and long distance trips with the Fire Dragons.
pages also have some good information on riding.
tips for new CJ owners:
suggest breaking your Chang Jiang 750 sidecar
patiently, your patience will pay off. (Better
performance, less problems, more efficient engine)
load up on gas. 90, 93, 97, whatever you like
as long as it is not diesel. You get about 300km
on a full tank. Reserve is good for about 20km.
and bolts will come loose for the first few
- The CJ750 is almost as wide as a car.
- The CJ750 will go faster than it can stop.
a good quality motor oil, straight 50W or
15/50 is recommended, (never use synthetic
oil, the chemicals may harm seals).
carry extra oil in the bike. Leaking a few
drops of oil is common.
Chang Jiang 750 sidecar is a high maintenance
machine and not made to go fast!
Check your oil daily, especially before long
brakes are used more to stop the bike (like
85%). Keep a safe distance especially when
roads are wet. Heavy load will also cause
increase stopping distance.
Driving a sidecar motorcycle takes some getting
used to, it is as wide as a car so beware of
the space on the right hand side, especially
when turning and pulling up to curbs.
will probably take more distance to stop a CJ
than you expect.
Keep a safe distance “buffer” especially
in wet roads.
extra careful of taxis, when they see a potential
passenger they are blinded by $$$$$ and will
not see you. Constantly read the road and the
idiots on the side or road.
riding in the bicycle lane beware of people,
bikes, dogs and especially small children jumping
out in front of you.
750 sway when braking and with a passenger stopping
distance is increased.
wheels have better stopping ability than spoke
tend to snap and in multiples, check spokes
often and replace broken spokes; spoke wheels
have been known to collapse.
Slow on right hand turns, especially with someone
on the pillion seat, as the sidecar can lift
and bike will loose control and may flip over.
750 engines are air cooled so in the summer
it tends to get very hot, be wary of overheating
may need to stop every 50km or 45 min of riding
and let your engine rest.
Headlights use up more battery than the bike
can recharge. If you frequently ride at night
in the city, it is advisable to buy a battery
charger to recharge your battery at home and
learn how to kick start your Chang Jiang 750.
Long rides will help recharge the battery.
Turn off gas tank’s petcock when not riding.
Air pressure should be 3.0 to 3.2 bar.
Always lock your bike when you are not riding
carry some tools.
Beware of people cutting out in front of you
especially making right or left turns into your
right of way.
Foreigners most likely will get the shorter
end of the stick in an accident - Avoid them!
At night, beware of drunk drivers, especially
not ride with shorts or shoes. The engine may
burn your shin, and hot oil may come off the
you have a back seat passenger, DO NOT swerve
your CJ750 or make extreme sharp turns. Your
CJ750 may tip over or you passenger may get
thrown off the back seat.
Beijing traffic law states: Motorcycles are 100%
responsible for accidents by default, even if
you do not cause them. There are opportunists
taking advantage of this law. Make sure you carry
your registration card and your insurance is up
and bolts will come loose and fall off.
will need to be adjusted.
will need to be tightened.
will loose some tension.
will need to be adjusted.
will need to be tightened to straighten wheel.
may come off engine when its hot especially
flatheads because there is wax covering the
fins and heads.
may slip and will need some adjustment.
oil leaking may appear.
bike does not start:
sure gas valve is open and you have gasoline
the red light on left side of key slot. If
light is on, power is good.
the distributor to see if rotor is turning.
your spark plug cables to make sure they are
pump some gas into the bike by tickling on
the button on top of the carburetors before
starting kick bike.
riders choke by closing off some air, with
the choke lever between the carburetor and
the air cleaner to help the bike start.
If engine starts and red light does not go
off when throttle is turned, the battery charging
system is not working properly.
battery cable, power switch (black box under
seat), ground cable, battery connectors.
If you hear abnormal engine noise when riding:
Engine might be overheating, rest till it
cools a bit. Never throw water on the engine.
might be leaking.
might be off.
or piston rings may be bad.
If you hear engine hissing:
Gasket seal might be leaking.
might be leaking.
may be leaking.
the engine gets very hot:
very common problem for 24hp engines when riding
for long distances at high speeds and or going
up long up hills.
Sometimes the carbs become hot enough to boil
the gasoline in them. A clear gas filter placed
above the carbs helps, as it will readily show
this. If this occurs, stop & let bike cool
off for about 20 minutes.
Sidevalve CJ 750 engines (24 HP) should rest
every so often, normally 50km or every 45 minutes
If you hear your valves to start making a clicking
noise when engine is hot, stop and let the engine
Never throw water on a hot engine.
Check your oil again.
CJ 750 engines, and OHV, seldom but occassionally,
the engines may overheat. When you stop your
CJ750, and the engine is off, you may aid in
the cooling of the engine by unscrewing the
oil dip stick. Put your engine into neutral
and make sure the ignition is switched off,
then kick over manually the engine to circulate
the oil. This will help the engine to cool down
your gears slip:
is a very common CJ 750 problem.
most cases it's an adjustment problem that may
be fixed easily by a professional.
it adjusted before your transmission is taken
shift if it slips into neutral and your bike
not to grind your gears when shifting.
This is very important to learn!! (two techniques)
When down shift to first with your left foot,
place your right ankle to feel the movement of
the hand shift going back towards the rear wheel.
Push slightly forward with your left ankle and
you should be in neutral. The movement of the
hand shifter is about an inch between gears so
it should be easy to find. This takes a bit practice
and once you get the hang of it, finding neutral
will be a breeze.
Works when you are standing next to your bike.
Put bike into high gear, and tap the front to
lower the gear. Use light taps. Each tap should
move the gear down one shift. After second the
gear will go into neutral. Again it is just tapping
on it to shift, not stomping on it or pressing
on it. You can also do it the other way by putting
it into first gear than tap it softly and it should
shift into neutral. If you push too hard it will
go right into second gear.
lighter weight motor oil, and pump the kick-start
in neutral to get some oil flowing into engine
before kick starting it.
can freeze (water in the gas).
also get frozen.
knee guards and keep warm.
hand guards, and hand warmers.
Workers Stadium and Olympic Stadium is a great
place to do some donuts. CJs handle very well
in the snow. With their third balance point
and low center of gravity, have excellent traction.
So put on your ski gear, and get out there for
some winter CJ fun !!
extremely careful when going down hills and
Wet weather riding:
750s may slide on turns and on braking... ride
Stopping will definitely be impaired by the
Old cloth spark plug cables will short out.
you are using cloth cables it is advisable to
put some black electrical tape on the rubber
spark plug covers.
Keep the wire and spark plugs dry.
coil may get wet and short out the spark plugs.
Water may get into transmission from speedometer
cable, this can be sealed with a little bit
of silicone rubber cement. If not sealed &
water enters, the transmission fluid will foam
up causing it to leak out, check your transmission
Make sure water does not get into your key slot
or it will short out the switch.
Throttle and light switch may tighten up afterwards,
loosen with some oil.
Shocks may also become squeaky.
Keep some electrical tape handy.
some duct tape and plastic bags for protecting
your shoes and taping up sleeves.
the weather looks bad, take your bike cover
with you in case you need to stop and cover
Long distance riding in China:
is best to ride long distance trips in a group.
ahead so you will get to the next town before
some plastic bags and also duct tape. We have
encountered some very cold nights and rain which
has made the plastic bags invaluable for keeping
the shoes dry and also as insulation.
rider slowing down and accelerating will keep
the riders behind senses up especially at night.
tired, take a rest, people have fallen asleep
on their bikes.
matter how tired you get or dark it is, check
your oil frequently.
extra careful when riding at night especially
with China's road conditions.
aware of large rocks on the road.
farm animals are known to be in the road or
may get startled and run in front of you.
passing in a group, rider in the back should
set a pick to block drivers from coming up and
blocking you from passing.
extra oil, points, condenser, and electric wire.
you are going for very long distance rides carry
extra parts such as transmissions and rear drives
as whole unit. You do not want to waste time
taking the CJ 750 apart for repairs on the road.
Do your repair work at night.
down on rough roads, it is better to arrive
a little late than to break parts .
carry some extra bottles of water and toilet
not create a scene and avoid trouble.
Rules for riding in groups:
up and check your oil and tire pressure before
you get to meeting point.
Most of the leaders on group rides in Beijing
have many years of experience. If you are a
new rider let the leader know and he will put
you in the front of the group.
Always load up with gas before arriving at meeting
point, 24hp engines use up more gas than 32hp
extra motor oil with you.
engine bikes ride up in front of the group.
32hp engine bikes and CJs w/ straights pipes
ride in the back of the group.
Do not swerve from side to side, riders in front,
looking in rear view mirror, may think that
you are trying to signal them and that there
is an accident or adverse road condition.
Never pull up along side of someone unless you
need them to pull over.
Never pass a vehicle on both sides. If someone
is passing on the right or left side of the
vehicle do not paralle pass on the opposite
side at the same time.
No over taking when riding in a group.
ride in bicycle lane.
If a rider in front of you pulls over, do not
over take, pull over and stay with him.
extra water and some snacks.
the front bike carefully and do not fall behind
too far, if the riders following you have fallen
behind, wait for them at turn or locations where
they may lose the group.
you borrow another biker’s spare part
please replace them.
When going up hills or on rough roads keep your
Respect other riders even if they are idiots.
long distance rides, make sure that your group
ride is covered with insurance.
The CJ 750 cover may damage the paint job especially
when the wind causes it to flap. Areas most
affected are the corners of the CJ 750, front
of sidecar, and side fender.
Things have been known to fly out of the sidecar,
especially small dogs.
the fork lock rod off the fork when riding,
because it will rub and rattle.
little kids away from the CJ 750, the engine
gets real hot and can give a nasty burn.
is suggested to not wear shorts or slippers
when riding, you can easily get burned.
In accidents, the right foot may get caught
under the right cylinder especially on OHV engines.
Do not turn too fast going right or left, we
have seen bikes go out of control flip over.
Carry some extra rags or old towels.
Nuts and bolts come loose and wires fray from
the vibrations, always take some time to look
over your CJ 750 and carry some extra nuts and
Never pick up strangers.
Do not drink alcohol and ride.
sure your documentation is up to date.
Written by Chang Jiang 750 riders, for Chang Jiang