Throttle plate screws

[Guest]

I'm doing a rebuild on a set of carbs but haven't been able to disassemble the throttle plates. The screws that are stamped on the back are really giving me trouble. All I've tried so far is BP Blaster & a good fitting philips driver.

Does anyone have a trick to getting these apart? It's a set of BS32s from a 82 650 if it matters. Thanks in advance!

[chuck hahn]

The threads are swadged to keep them from falling out and getting sucked into a cylinder. You can unscrew them but it takes a bit of force to do it. And you gotta have a way to resquish then threads. I did it once and got new screws from home depot. Then i used needle nose vice grips to foul up the ends again.

Good luck.

[Nessism]

Under most situations you would be better off leaving the screws alone.

[MechMessiah]

Under most situations you would be better off leaving the screws alone.

Well that'll definitely make the whole thing easier. Do the throttle assemblies need to be be disassembled at all for cleaning? I was worried about O-rings getting destroyed by the carb dip.

[Steve]

As long as you limit your dip time to something less than about three days, there is no problem with the o-rings.

Most of us dip the carbs at least overnight, up to a full day. I typically get the carbs into the dip by 10 or 11 pm, then get them out about 5 or 6 pm the next day for re-assembly.

.

[nastyjones]

No one has stated the obvious. You need a JIS screwdriver to grip that tiny screw head properly. The right tool for the job, eh?

[MechMessiah]

No one has stated the obvious. You need a JIS screwdriver to grip that tiny screw head properly. The right tool for the job, eh?

Oh,wow. I never knew about JIS screwdrivers. I'll have to pick up a set of those for the future. I swear, every time I have to use a phillips working on the bike I pray the head doesn't get stripped. Might also save on the amount of BP blaster I use.