Need replacement speedo bulb for gz 125, need to know what type

yes there is a bulb in the speedo, though i'm not entirely familiar with this model but i guess you should take down the speedometer and take of it's case....there you should see the bulb .

On your left hand side, take off the front sprocket's cover and you will see an oval part bolted on the left crankcase with a wire running out of it right next to the stator's cover.Follow that wire and see if it is properly hooked on the harness.Unplug it from the harness and touch, the harness half part of it, to the chassis. Your neutral indicator should come on. If it doesn't, replace the indicator's bulb.If it does, then you need to replace that oval part which is the neutral switch

Try running the 'long life' or 'extended life' bulbs, They can withstand a little more in the rough service department. Also check to make sure your fender, bulb socket and tail light housing aren't loose, cracked etc. causing a higher than normal amount of vibration. A third thing to check is if your socket or the wires leading to it have a short, your tail light might be energizing alonw with the brake light anf causing the bulb to burn out.

take contact with Castrol! ASK-
Castrol Fork Oil

If you can remove the cluster ... light bulbs are fitted to sockets that rotate out of the cluster. A blown bulb usually has smoked glass from the blowout depositing metal on the inside of the bulb.

Try moving a working bulb to the speedo and tachometer, and of course replacing any blown bulbs with the same from a parts store.

If using a new bulb does not work in the speedo/tach, look for a blown fuse in the fuse panel. Look at the two(?) female cluster connectors on the back: remove any green corrosion/dirt with WD40.

If you have a multimeter, trace the speedo/tach circuits from the cluster connectors to the bulbs and hence to ground. There could be a crack in the flex circuit.

If the problem persists, there's a more problematic issue in the wiring harness.

Unfortunately, unless you're a wizzard you'll need to get you're mechanic to change the speedo drive, the lead you see coming out of your front wheel area. Don't know how much it cost's as my mechanic did the damage in the first place!

hi i am a locksmith you have on the ignition 2x dome head bolts closest to fuel tank the only way to remove the ign is a hammer and centre punch use the punch to tap bolt undone

hope this helps

take out the front wheel remove the drive it should tap out with a bit of gentle tapping they are not that tight fitting