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Main scope of this DIY is swapping stock 14T inner sprocket to 15T (or vice versa).
15T advantages over 14T on FZ are Great highway cruisability and better top end. Drawbacks would be not so good city ridabilty and need for frequent down shifts and revving.
PS: Tyre removal part can be skipped. Instead of removing the wheel, just loosen the axle and chain tension bolt, disconnect the stay rod and push the tyre all the way to the front to loosen the chain to remove the sprocket. With this, there will be only limited room to remove and install sprocket. Sprocket alignment may be affected and it tends to wobble. So I personally recommend to remove tyre and do the job. For FZians running on taller tyres (140/70), no other way than to remove the tyre as there is not much clearance with the wheel hugger.
(Updated pics are from 2 different occasions, kindly adjust).
Tools required:
17 and 19 mm spanner to remove rear wheel.
A 12-13 spanner.
8 mm and 10 mm ring spanners or socket wrench.
Parts required:
15T sprocket from Pulsar 150/180 or Unicorn.
Sprocket holder (in case old one is worn out at points of contact).
PROCEDURE:
Place the bike on main stand, preferably over a wooden plank or tile piece to get better clearance off the ground. Place the bike in gear to prevent sprocket movement.
Remove the sprocket cover. Use 10 mm spanner for this. Unscrew the two bolts and it will come off in a pull. Now the inner sprocket will be visible.
Remove the rear drum stay and connecting rod, 12 mm spanner.
Unscrew the nut and remove the axle bolt and remove rear wheel and then pull the sprocket off from wheel.
(Don't put chain on ground, hang it over swingarm instead, was an amatuer then)
Make enough room at front sprocket area.
Rotate the sprocket holder to unlock position.
Use a screw driver to remove it.
Remove sprocket.
Install new sprocket.
Put the sprocket holder and turn it to lock position aligning its hole with sprockets hole.
Put back the screw and tighten it and put the chain back over it. (Replace the bolt with an Allen bolt if possible, easier to remove without slippage)
(To be continued...)
15T advantages over 14T on FZ are Great highway cruisability and better top end. Drawbacks would be not so good city ridabilty and need for frequent down shifts and revving.
PS: Tyre removal part can be skipped. Instead of removing the wheel, just loosen the axle and chain tension bolt, disconnect the stay rod and push the tyre all the way to the front to loosen the chain to remove the sprocket. With this, there will be only limited room to remove and install sprocket. Sprocket alignment may be affected and it tends to wobble. So I personally recommend to remove tyre and do the job. For FZians running on taller tyres (140/70), no other way than to remove the tyre as there is not much clearance with the wheel hugger.
(Updated pics are from 2 different occasions, kindly adjust).
Tools required:
17 and 19 mm spanner to remove rear wheel.
A 12-13 spanner.
8 mm and 10 mm ring spanners or socket wrench.
Parts required:
15T sprocket from Pulsar 150/180 or Unicorn.
Sprocket holder (in case old one is worn out at points of contact).
PROCEDURE:
Place the bike on main stand, preferably over a wooden plank or tile piece to get better clearance off the ground. Place the bike in gear to prevent sprocket movement.
Remove the sprocket cover. Use 10 mm spanner for this. Unscrew the two bolts and it will come off in a pull. Now the inner sprocket will be visible.
Remove the rear drum stay and connecting rod, 12 mm spanner.
Unscrew the nut and remove the axle bolt and remove rear wheel and then pull the sprocket off from wheel.
Make enough room at front sprocket area.
Rotate the sprocket holder to unlock position.
Use a screw driver to remove it.
Remove sprocket.
Install new sprocket.
Put the sprocket holder and turn it to lock position aligning its hole with sprockets hole.
Put back the screw and tighten it and put the chain back over it. (Replace the bolt with an Allen bolt if possible, easier to remove without slippage)
(To be continued...)
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