hi, so as i was trying to clean up my carbie for the fzr250... carbs 1&2 has all 4 float bots seized.... in my attempt to take them out.... i damaged the philp slots on the bolt..... what is the best way to take out these seized bolts? Thanks in advance
No easy way. If you can cut a slot in the heads for a flat blade screwdriver it might be a different story, either that or try using an impact screwdriver with a philips bit. It might get enough traction to undo.
A trick I learned many years ago - for extra traction with an impact driver and a damaged Phillips head, add a teeny dab of valve lapping compound.
When i was doing my apprenticeship one of the mechanics taught me a little trick. If you have a holepuch with a sharpish point and a hammer you will be right =] Close to the edge of the screw tap a bit of a hole/dent, Then put the holepuch on the hole/dent you just punched into the screw and angle it so it is like "/" <that towards its meant to undo. hold the holepuch firmly in place and tap repeatably until it lossens. pictures would make this easier to explain i reckon. it works everytime
This exact same thing happened with my carbs. The best way to go about it is to go to a hardware store and buy a set of metal drill bits and a set of drill mounted screw extractors. Cost me about 20 bucks and that was including replacement screws. On the screws with the stripped heads carefully drill a small pilot hole in the center of the stripped head. Now put one of the smaller screw extractors on the drill and set the drill to run in reverse. Run the drill on a medium torque setting. The extractor bits have a reverse thread that bites into the metal of the stripped screw and will give the increased torque necessary to get it out. Drill slowly into the pilot hole until the drill bit bites. When it bites try turning it with your hand (alot of downward pressure needs to be applied throughout this evolution.) The screw should loosen. If it doesn't run the drill a little bit faster and apply a bit less downward pressure. Eventually the drill bit will bite and will instantly remove the stripped bolt. I have removed atleast a dozen bolts from my fzr using this method. Cheap and quick. If it doesnt work you can always drill the bolt right out and rethread it.
same thing happened to me lol, stupidest **** i did... i tried few of everyone's recommendations with the carbies sitting on the ground, got the screws out, spent 2-3 hours cleaning em (they looked immaculate) till i put everything back togethor an i realised i had cracked one of the bowls whilst hammering. 2-3 hours wasted and ended up with broken carbies, just be careful. lol
