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Discussion Starter · #1 ·
New to the site, did some quick looking around and didn't see the answer. Quite possible I missed it. The brakes are shot on a four trax that I was given. I have it running finally, but now I can't stop. So last night I started on the brakes and I can't get the castle bolt off. Is this reverse thread, I thought of this on the way to work this morning, does anyone know what size this is. Went to the local ace, took my crescent wrench set to the size and tried a 1" deep socket to no avail. I am assuming that everything is metric on this atv, but they only had 28 mm and 30 mm. I am thinking that it may be 29mm, but I may be wrong. Also I can't get the thing to go in reverse, I push down the selector knob but it doesn't feel like anything is happening. Could this be because my handle brake feels like mush?
 

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I know its a least an inch... Thanks though
I'll look when I get home at what size socket I purchased for it, but it's either 22, or it might be 23-24mm.

I used a caliper to find the size and then bought the socket.
 

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As far as reverse goes, and assuming everything is intact, there should be a cable connected to the left hand brake. Before you pull the brake, there is a button that has to be pressed down. Then pull the brake, and that should pull the cable that runs under the bike. While holding that, you can shift into reverse.
 

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Yes, the button move is significant. There are two actions on the front brake. You should see the brake cable on the top, and the reverse cable on the bottom. If the button is not pressed, only the top action works. The button slides down (maybe half an inch?) to connect the bottom action. You can see the hand lever pulling the cable if it is working correctly. The button can only be pressed down if there is no pressure on the lever. ie. Push the button down first, and then pull the lever.
 

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Discussion Starter · #10 ·
my next question is regarding the rear brake cable. Does the wire adjusting and the fixing bolt hold the break cable in place? When I release the rear brake lever it pushes the whole cable away, this doesn't seem right...
 

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my next question is regarding the rear brake cable. Does the wire adjusting and the fixing bolt hold the break cable in place? When I release the rear brake lever it pushes the whole cable away, this doesn't seem right...
It should have a holder for the cable at the rear somewhere near the lever and adjuster. Make sure it's adjusted up good or it will do that.
 

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In the first diagram, #28 is what the cable sits in and #28 is also the adjuster at the lever. #28 screws into # 19, which is what the lever bolts to. #32 is the lock nut that keeps the adjuster from turning.



#5 in this diagram shows the backing plate for the rear brakes. Those two round things, at the top of the backing plate, with the slots are what holds the cable in position at the rear. One is for the foot pedal cable and the other is for the rear hand brake. When the brakes are adjusted up correctly, the cable will be held between the front adjuster #28 and the rear holder on the backing plate. If the cable is adjusted correctly and it still moves backward when you release the hand lever, then your cable probably needs lubed or replaced.

 
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