By now you have paid your money and your
bike may be on the way to your house.
Psst..there are a few things we should probably tell you.
CJs have number of interesting features, not bugs, we
said features. If you wanted a Honda they sold those near
your house too right?
First of all your bike was probably not made the year
they told you it was, just trust me on this.
You can pretty much figure your CJ is either a six volt
earlier bike with a flathead and no reverse or an M1
flathead with a 12 volt system, usually a starter, or an
M1S OHV. If you ask someone for help we need to know
which type you have as they can be quite different.
If you have not found CJU yet you need to or just kill
yourself.
http://www.changjiangunlimited.com
Nobody can help you and unless you read Chinese and wish
to spend years in Shanghai searching for a shop manual
there is really none available. There is much info on CJU
and in the online Wiki manual. If you check the Toolbox
section many of us are documenting our repairs and trying
to share the information.
You might also have an M5 type (plastic Chang) if the
bike is OHV and has a rear suspension but these are very
rare outside of China.
First Chinese gas is very bad and tank sealers do not
seem to be readily available over there. This means one
of the first things you should do is go to the CJU
toolbox section and read Fred Belany's article on sealing
your gas tank. One of the next things you should do is
clean out any residue in your float bowls as this will
stick the needles. You can get a very wet shoe from this;
don't ask me how I know. The rust is famous for clogging
the petcock and making you lose power and get gas all
over you at inopportune times.
Your petcock probably sucks. Most of the rubber sealed
ones tend to have the rubber melt in American gas. This
can give you that interesting garage full of gas
experience. A Honda one fits some bikes and a Harley one
can be adapted to others, see the Toolbox.
If you have plastic carb floats they will melt in
American gas. Brass ones are available, please get some
if your bike does not come with them so we don't have to
listen to you whine.
Get a good battery and keep the connections clean.
If you have a six volt you can use a VW regulator, see
the toolbox.
If you have a 12 volt several electronic regulators are
available, again see the toolbox. Mechanical regulators
are an Achilles heel of these bikes.
If you have a flathead it is quite likely it will get hot
and boil the gas in the carbs on hard going or hot days.
OHVs don't overheat as much as they have more cooling
area. There are several cures for this from a simple carb
spacer to a rubber mount, or Chinese Mikuni copy carbs.
Again the Toolbox has info on this.
The old ex military bikes have better switches than the
later 12 volt civilian bikes. You should plan on
replacing some of the switches now and again if you have
the later type.
Your wiring may be quite interesting but not have very
good connections. Take a close look at it and a soldering
iron may be your friend. As far as a color code goes each
builder appears to have a dartboard and uses it to select
wiring colors. There are wiring diagrams in the CJU
Toolbox for both six and twelve volt bikes.
Bulbs may have to be sourced from China or replace or
modify your sockets. The little tangs are in different
places. Not all headlights are the same but you can adapt
something from the parts store or junkyard. Check the
Toolbox for modifications others have done.
There are also some parts interchange numbers in the CJU
Toolbox and a nice plug chart.
Storing
If you leave gas in the bike it will likely turn to
varnish by spring. Use some Stabil as directed or drain
the bike. Gas is much worse these days. Some users keep a
bit of Stabil in a bike they don't use often.
Keep the battery on a tender if you aren't using it.
These batteries rarely make more than three of four
reliable years.
If you are going to try to start the bike in the middle
of winter in your shed with thick oil and a half flat
battery there is a fine chance you will fry something. We
see this over and over again, don't do it. Starters can
stick in the engine, you can fry a starter, it's fairly
easy to toast a relay, and for God's sake don't jump it
with your car. Each of these recommendations comes from
someone's painful story and my head is getting flat from
where I slap myself when I hear these.
If you must start your bike in the middle of the winter
charge the battery, be sure the connections are clean,
use light or multi grade oil (calm down Marcus, I know
multigrade is a tool of the devil) and for the sake of my
poor forehead try to warm the bike up a bit. Better yet
just move to some climate suitable for human habitation.
Locktite, this seems to be a secret formula in China
known only to the elite. They don't use it and you need
to. I have had almost everything on my bike come loose
and riding along and having your mirror fall down is
embarrassing. You need to Loctite everything you can get
off unless you like to tighten all the bolts every few
miles.
Leaks can abound on a CJ and we fight a running battle
trying to keep ahead of them. You will find a number of
Toolbox articles on this. Make sure you pull that useless
rear gear set gasket and seal it with something like
Permatex. I was warned and put it off. Trust me it is
easier to do when you don't have to spend an hour
cleaning the bike first, and if I had not caught it,
added oil and tightened the bolts to get home I would
have been waiting for gears from China.
Rims may not be round; spokes may come loose or break,
usually short and on the rear. This can be fixed of
course and some rims are better than others. I have one
Norton rim on my bike and a Triumph in front. Jim offers
M5 wheels that have a bit more brake and the ones I've
seen have been nice round wheels. If you have a good
builder he may fit good wheels for you but for some
reason they seem to be optional on all commie bikes. This
may have something to do with capitalism but I'm not
sure.
Brakes, well everybody told you they were about 1939
didn't they? Mine came with powder coating inside the
drums and my first stop sign was more exciting than I
care to mention. It could have been worse; they could
have greased the shoes. Dan and Phil gave me some tips
like sandpaper the drums, break them in, and adjust them
carefully. You can by fiddling with them get them to lock
up on a stop. Folks have approached this several ways by
fitting brakes from other bikes like Ural, or I use a
Triumph front. I like sidecar brakes but the purists
don't, and you can fit M5 wheels and brakes; or Dan Cason
is testing new double leading shoe fronts that may be an
excellent answer.
Head bearings, some bikes are fitted with ball bearings
that do not last long before becoming loose. A roller
bearing set up is available from Long River, CJ Parts
Depot, and perhaps others that can cure this looseness.
To test just jack up the front of the bike and pull the
front wheel forward, back, and look for play at the neck
up and down.
How to find reverse, don't laugh, some of the information
out there is wrong. I have two bikes, one M5 with a later
manual tranny with a small lever with a rubber handle. It
wants to be in neutral before selecting reverse.
My M1S require you to select first and then move the
lever to reverse. There are a number of different
transmissions made in different factories. At least two
without reverse and at least two with reverse of
different design.
Adjusting your transmission. All CJs require adjustment
of the shifter as they break in. There is an article in
the Toolbox on this and it may be best to carry a
screwdriver and wrench for the first thousand miles. Read
the article and prepare to adjust as you go.
The cables will stretch. Adjust all your cables after
each ride for a while. This can also cause poor shifting
and you need all the brakes you can get.
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