SB 14 Rear wheels locks when pulling backwards. Pulled off gears but see no wear. Also how do I repalce Speed control cable. THANKS JQ

Single speed bikes are often known as Fixed gear or fixie bikes.
But Most people don't know the difference between a fixie and a single speed bike.
It's all in the hub
Mechanically, the difference is so small that you might not spot it even when you are looking for it. It all comes down to the rear hub and how the single cog is connected to the rest of the drivetrain. Single speeds are fitted with a freewheel cog that rotates freely one way but locks up the other. This means that the cog will turn the rear wheel when you pump those pedals, but then freewheel when the rear wheel starts turning faster than the cog - much like a geared bike.

When it comes to Fixies, it has no mechanism on the hub. The cog is fixed into the hub. If the rear wheel turns, the cog turns, and if the cog turns, the pedals turn with that. I admit the difference is not so small, but one that has a huge effect on how a bike rides and requires some consideration before you decide on a bike.
If you want to know more about Single speed and fixed gear bike
Have look on this
Gear bike review Blog.


Best Fixed Gear Bikes In 2018 Enjoy Your Ride On Cool Fixie Bikes

sounds the belt may be too tight if it is the same belt that has been working maybe a weak spring on the transmission

Which do you have ?
Transfer Case - NVG 236 (Two Speed Automatic)
Transfer Case - NVG 233-NP1 (Two Speed Selectable)
The NV236 transfer case is an automatic transfer case with three drive ranges. Shifting from rear wheel drive to four wheel drive is done automatically when the transfer case shift control module receives wheel rotating slip information from the speed sensors. The transfer case shift control module then engages the transfer case motor/encoder to position the transfer case from rear to four wheel drive. When the transfer case shift control module receives information that the wheel rotation is the same on both axles, the transfer case shift control module sends position information to the motor/encoder to put the transfer case back into rear wheel drive. The three drive ranges are 2HI, 4HI, and 4LO. The 2HI position is for normal driving with the rear wheels pushing the vehicle. The 4HI, position is for driving through sand, snow, mud, gravel, or heavy rain at normal or slightly below normal speeds. The 4HI engages the front axle to allow for four wheel drive. The front axle is pulling the vehicle, and the rear axle is pushing the vehicle. The 4LO range is used for off road driving, heavy snow, deep mud, or shallow fording. The 4LO is similar to the 4HI except that the gearing in the transfer case is set for low speed and high torque. The NV236 is manufactured at Syracuse New York by New Venture Gear a division of New Process Gear for General Motors.
Is the switch light on or flashing ? If you have automatic 4x4 there are several DTC'S that can set >
DTC B2725 ATC Mode Switch Circuit Malfunction DTC C0300 Rear Speed Sensor Malfunction DTC C0305 Front Speed Sensor Malfunction DTC C0308 Motor A/B Circuit Low DTC C0309 Motor A/B Circuit High DTC C0310 Motor A/B Circuit Open DTC C0315 Motor Ground Circuit Open DTC C0323 T-Case Lock Circuit Low DTC C0324 T-Case Lock Circuit High DTC C0327 Encoder Circuit Malfunction DTC C0362 4LO Discrete Output Circuit High DTC C0367 Front Axle Control Circuit High DTC C0374 General System Malfunction DTC C0376 Front/Rear Shaft Speed Mismatch DTC C0387 Unable to Perform Shift DTC C0550 ECU Malfunction DTC C0611 VIN Information Error

Possibly has a bad wheel speed sensor or has a problem with the ABS control module and/or pump. Need to have the ABS codes pulled by a service center. Also, some auto parts stores can pull codes and may be able to pull ABS codes.

Rear wheel drives like this have pinion gears with rachet pawls that allow them to go backwards freely while locking when the transmission drives them.

You need to take off your rear wheels and carefully remove the pawls. They look like little squareish metal shaft keys with springs under them. You should notice that the keys or pawls are covered in what looks like grease.....which is actually worm metal from the pinion gear and oil mixed together to form this pastey greasey substance. Clean all that stuff off and lightly oil *( light oil...3 in 1 kind of oil) and reassemble.

You should hear the nice clean clicking of the rachet pawls as you roll backwards again!

Good luck and be careful!

1. Check the resistance of the rear wheel speed sensor. It should be 1200-2500 ohms.

2. If OK, check the wiring between the rear wheel speed sensor and the Controller Anti-lock Brakes (CAB

sometimes this sensor is on the rear of the transmission or the rear differential.

Sounds like your mower has a safety mechanism that has locked up. On your push handle is a bar that must be pulled back in order to pull start cord, it has a cable that goes to the safety brake, check the cable to the safety brake on the flywheel, it may be broke. If it isn't in the safety brake itself, try spraying the cable with WD-40 as this may free it up. Or the cable may need replacing from wear. To check this pull back on the handle and watch the on the side of the engine where this cable attaches, if it is moving on the side of the engine then this cable won't be the problem. In this case it most likely will be the safety brake itself that's the problem. Do not remove the safety brake if under warranty as this will void your warranty.

1995 Monte Carlo rear tires locked up ,goes into gear but wont move?

If i remember correctly, under each drive wheel, there is a small gear, and under each gear there is a small metal rod that is what the transmission uses to propel the mower...it sounds like the rods either have dirt on them or they are just stuck and can not move to allow you to pull it backwards

SOUNDS LIKE THE PINONS ARE ON BACKWARDS. THE KEY SHOULD SLIDE OFF THE PINIONS WHEN PULLED BACK AND LOCK WHEN ENGAGED. YOU HAVE THE OPPOSITE PROBLEM OR ITS BACKWARDS!