How to replace shirting cable on 6 speed huffy bike

No, they do not - a chain tool has to be used. Also, a 10 speed (2 gears in front, 5 in the rear) would be quite old, so the rear gear cluster (freewheel) will be worn as well as the chain, and also takes a specialized tool to remove. Replacing both on a Huffy will cost more than the bike is worth.

Cable adjustment is complex. Suggest taking your bike to local bike shop for assistance

The serial number has nothing to do with the type of brake cable your bike uses. In most cases they are the standard brake cables with the dot end. A way to see what is needed is to take a cable off the brake handle. There are 2 major kinds. A barrel end and a dot end. Some packages come with both ends on a cable, just cut the end you don't need off and install the new cable. These are a bit more than the single end cable. A single end cable can be purchased at any bike shop, on the internet, at ebay for instance. Even Walmart is carrying them now. I would take your old cable into the local bike shop, the clerk or service person can assist you in finding the right cable

Sorry, it takes a special wrench. You can try a hammer and punch and try to knock it loose. It is a reverse thread. It is called a cassette wrench, here is a picture. This may not be the exact one to fit your bike, but it will look similar to this. They only cost about $5 - 6 dollars. Not hard to find here on the net. Start with a good bicycle parts site. Sounds like You will need to replace the cassette (gear assy)

Identify the brand and model and hit the search engines, eBay, call a Bike Shop. It will need to be installed. NO ONE sells just one side. Consider an upgrade since you may be purchasing both sides.

Even the Huffy site doesn't refer to the bike by model number. What's it called?

http://www.huffy.com/Support/MaintenanceDocs.aspx

You can use the 6 speed rear derailleur with no problems. The 5-spd shifter does not need to be disabled, as it will work just fine.

The shifter controls the rear derailleur, telling it how far to move. The rear derailluer just follows what is dictated, so there is no real difference mechanically between the 5spd and 6spd derailleurs, only in the shifter.

If you wanted to make the bike 6spd, you would have to change the shifter and gears along with the derailleur.

Hello,

The best I can do is to provide you with the manual that Huffy provides for multiple bikes. The manual below is for multi-speed and freewheel bikes.

Huffy Multi-speed Manual

Hope this helps. Thanks for using Fixya.

Note: If the manual link above is not useful you may contact Huffy directly at:

Huffy Bicycle Company
6551 Centerville Business Pkwy
Centerville, Ohio 45459

(800) 872-2453 customer service

Monday - Friday: 8:00AM - 12:00PM; 1:00PM - 4:30PM EST

You have to look if when you act on the shifting level it get hard to move or it is free, if free, probably the cable is broken.
Also check if the cable is not too loose, try to follow the cable track and move the level and see if the cable move with that, in that way probably can find where the cable is stuck or broken/loose.

single speed bikes have a single ratchet or fixed sprocket with no offset of the spokes, so you would probable need another rear wheel.
Another derailleur is probably simpler, try ebay

If the cable is rusty or otherwise binding it won't let the derailleur fall toward the smaller sprockets when the control is moved. Likewise, it may not even let you move the control in the direction that pulls the cable (bigger rings).

If you don't know much about the process I suggest you read this:

http://coachlevi.com/cycling/complete-beginner-guide-to-bicycle-gears-shifting/

and take the bike to a Local Bike Shop for a look-see and maybe a tune-up.