Grip Strip tip for mountain bikes.An easy way to remove mountain-bike handlebar grips, even ones seemingly bonded to the bar, is to slide a long thin screwdriver beneath the grip, lift it, drip a little alcohol under the grip and twist. The alcohol will work its way beneath the grip, simplifying removal. To reinstall, drip some alcohol inside the grip and swish it around (hold your finger over the hole in the end if there is one). Then slip on the grip. The alcohol will evaporate quickly, and as soon as that happens, the grip will be secure
If you want pictures, I'm afraid that you'll have to purchase a manual somewhere. This forum will only allow me to send a picture of 150Kb size. Replacing the throttle grips is not difficult.
First, loosen the locknuts on the throttle and idle cables at the twist grip. Adjust the adjuster barrel inwards all the way getting as much slack as possible. Now, loosen the bolts holding the front master cylinder onto the handlebars and slide it towards the center of the bars just a bit. Remove the two bolts that hold the right handlebar switch housing together. Carefully lift the top portion of the switch housing and move it towards the front of the bike exposing the throttle twist grip. Work each of the cables out of the nylon wheel of the twist grip. Do not loose the barrels that go on the ends of each cable. Once you have the cables loose from the wheel, lower the lower switch housing and remove the right grip from the handlebar.
Now, take the new grip and apply a coating of white lithium grease to the wheel part and the inside of the throttle sleeve in the grip. Put a coating of grease on the handlebar end where the sleeve rides as well. Slide the throttle sleeve and grip onto the handlebars. Bring the lower switch half up and reconnect the cables to the throttle wheel. Carefully reposition the top half to the switch housing and make sure that no wires are being pinched. Install the two bolts but don't tighten. Slide the throttle grip all the way up on the handlebars and then back off about a 1/4" or so. Tighten the two bolts. Now, adjust the two cables to where they each have just a bit of slack. Turn the throttle grip to the wide open position and release it. The throttle should snap shut. If not, work with it until you get it to where it does. Once operating properly, reposition the front brake master cylinder.
Make sure your throttle operates properly. An improperly operating throttle control can cause lose of control of the bike resulting in serious injury or death.
If your grips have closed ends, cut a section off so you have plenty of grip left, but a hole where the bar ends can go through. Follow below procedure with the bar ends.
Bar ends are either have a screw or allen key head. Tap them into the ends of the bars with a rubber mallet. Tighten up the screw/bolt as this will make them expand keeping them inside the bars.
If you need to remove the grips:
Get some hairspray and lift the edge of the handlebar grips up, spray
down until the grip is slippy and comes off. (Only use hairspray
though, as once it is slippy, it will be very sticky in a minute so it
will help when you replace it. Repeat for the other grip. Clean up the
bars where the grips were. Refit the grips with more hairspray inside the grip and a little on the bars. Slide them on and leave for a good 6 hours so they stick.
If the screw is all the way tight and still slipping ... try to find a fatter part of the handle bar to mount the grip to. You will probably will not find any such that is convenient for you to continue to use the brake ... remove the grip, wrap some electrical tape around the handle bar, reattach the grip. Tighten it and give it a try.
take the grips off and wrap some friction tape around the handlebars about half to three quarters the length of the grip from the end of the bars. then put the grips back on. shouldn't need more than 3 layers of tape