Re: damaged screw heads- help!
 

Nice one.

I've tapped the chainguard with a hammer, but not banged it, thinking exactly the same thing!

Does anyone know, off the top of their head, the size/thread pitch of the choke plunger screws? I may source myself a more stainless replacement then. And hopefully soon and cheaply- my choke is getting desperate for an overhaul.

Also, can the screw be covered in any grease (silicone) to prevent seizing while still being able to tighten adequately?

Sorry- I know- You answer a question and get more back! :D

Re: damaged screw heads- help!
 

Reverse thread screw = NOT genius.

If the original screw head isn't strong enough, then a screw extractor probably won't be. That's not what they're good at.

Re: damaged screw heads- help!
 

Ah. Still a clever idea though. I wouldn't have thought of that.

I didn't!

I guess the molegrips then for the choke screw. Don't know what to do about the chainguard- it's an ongoing puzzle. I've tried penetrating oil (may do that again) and gentle taps with a hammer. Filed the slot deeper last night and still couldn't make any difference. It's not urgent- but it would be nice to be able to completely remove the guard when cleaning the chain.

Re: damaged screw heads- help!
 

I just had a hell of a time a couple days ago getting the choke cable removed myself... I basically did a combination of lots of the suggestions you see here:

• Filed a new slot for a flat-bladed screwdriver
• Let some "Liquid Wrench" penetrant soak into it for a while
• Grab the screw head with some vice grips (mole grips for you I think?)
• Tap the screwdriver into your new slot with a hammer (lightly)
• Apply some of that screwhead grippy paste stuff (can't remember the name)
• Then turn the screwdriver and the grips at the same time

It finally cracked free! Good luck.

Re: damaged screw heads- help!
 

Good luck getting something as big as moleys on the choke screw. Tap it loose, anticlockwise. It's probably standard M5 from memory, pan head machine screw and probably about 10-15mm but you'll know when it's out.

Re: damaged screw heads- help!
 

Just for future ref. if you try tightening the screw a fraction before attempting to remove, and if it tightens slightly, it will glide out easy peasy. Hope that helps!

nb650

Re: damaged screw heads- help!
 

M5 by either 10 or 12, I think 10. I used mole grips on one of mine, but mostly they come out with impact drivers.

Re: damaged screw heads- help!
 

The choke plunger ones, you can give the plate which holds the plunger in a bit of a tap from side to side, this cracks the screws off nicely.

Re: damaged screw heads- help!
 

I've got a pair like this that made it a lot easier:
http://www.encorestore.com/catalog/14t_lg.jpg

Also... I detached the choke cable from the lever on the handle bars and took the cables off the carbs on the bench, instead of on the bike.

Re: damaged screw heads- help!
 

Ahaaaaaa! Got the chainguard screw out. Got some Shock and Unlock from Halfords. That and a huge flat head screwdriver (£6 for a screwdriver for 1 knackered screw!!! Oh well- I'm sure I'll need it again some time!). That particular screw socket does seem a little tight- It may just be all the cr"p that's in it, though.

Just the chokes to sort out now- will order replacement screws and will be onto it next weekendy, methinks. I'm now praying the choke cable is intact...!

I saw a couply of decent looking small molegrips in B&Q (including long nose)- but I've gotta be a little careful on the budget now.