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Message started by Hammy211 on 05/27/05 at 14:04:39

Title: Stripped carb screws
Post by Hammy211 on 05/27/05 at 14:04:39

Well, I stripped some more screws. This time I stripped the two smal ones inside the carb. Would a left handed drill bit work to get these out. I'm just afraid the screws will become stuck and I will have to buy a new slide. Not a big deal, but me bike has been apart for over a week already and I don't want to have to wait for more parts to be able to ride it. Any suggestions would be great.

Title: Re: Stripped carb screws
Post by Max_Morley on 05/27/05 at 14:38:39

Go to Sears, Home Depot, Lowes or any good harware store and look in the drill accessories section. They make a special bit now to do what you want to do. Don't forget to look for the replacement screws while you are out . Max

Title: Re: Stripped carb screws
Post by bentwheel on 05/27/05 at 14:48:09

I feel for you Hammy, those are tough screws to remove. Try a good quality penetrating fluid (not WD40) to both ends of the screws, and let it sit for a bit. Try a pair of needle nose vice grips on the screw head. This is a case where only quality tools will work . A cheap nn vice grip will flex and slip off.

Title: Re: Stripped carb screws
Post by Clark on 05/27/05 at 14:50:39

While many people here rave about the white spacer change, none seem to caution people about what can happen if you try it. I had the same issue with the same M3 screws. The small philips head stripped out very easily. While trying to get them out, I punctured the diaphram. I ordered a new diaphram assembly, plate, screws, and lock washers over the internet for about $90 total. I drilled out the screws to salvage the plunger, spring, and infamous spacer. After shaving the spacer I reassembled it with the new parts. Putting it back together is very tedious due to trying to keep the plunger down, half spacer in, plate aligned, lock washer on the screw, the screw on the screw driver, and finally this is all happening down in a tube. Very frustrating. I don't know how one would do it without a magnetic screw driver bit.

It helped eliminate 80% of the backfiring with the half spacer in. I am tempted to take more of it out, but am afraid to try again.

It is worth the change, but the change is not always as easy as many would tell you.

Title: Re: Stripped carb screws
Post by Michael on 05/27/05 at 15:06:23

Must be a inferior made screws. Same story here, and I hardly even touched them. Even the drain screw head on the bowl stripped, with the slightest twist.

cheers

Michael

Title: Re: Stripped carb screws
Post by Ed_L. on 05/27/05 at 15:36:50

Here's a tip for putting them back in, take a small piece of electrical tape, wrap it around the screwdriver tip and jam the screw onto he screwdriver. The electrical tape will hold the screw on the tip of the screwdriver till you can get it lined up in the hole. Ed L.

Title: Re: Stripped carb screws
Post by Greg_650 on 05/27/05 at 15:41:20

Clark wrote:

Therein does lie a trick to the trade. Don't have a magnetic screwdriver? Make one by dragging it over a strong magnet a few times.

Quote:

It helped eliminate 80% of the backfiring with the half spacer in. I am tempted to take more of it out, but am afraid to try again.

It is worth the change, but the change is not always as easy as many would tell you.

Title: Re: Stripped carb screws
Post by Greg_650 on 05/27/05 at 15:43:22

Ed_L. wrote:

Another good one...and few ever think of a little bit of duct tape to keep a nut in a socket or wrench for those awkward hard to reach places.

Title: Re: Stripped carb screws
Post by Greg_650 on 05/27/05 at 15:59:42

From the number of replies concerning stripped screw heads in this topic...are people using the correct type of screwdriver to remove these screws? As happens all too often, we are stubborn and in a hurry, and we grab the tools that are the closest and just try to make do.

Hint #1 - Never use a Phillips screwdriver that is too small for the screw head. If it doesn't fit snuggly and completely, find one that does.

Hint #2 - If it slips out of the head one time, try something else. Don't do it again, or the condition will get worse. Find an impact driver if needed (or hint #4).

Hint #3 - There is a less common type of screw head called a Reid and Prince (I think that's correct). The tip of these screw drivers are more pointed and will not fit in a Phillips correctly (more blunted).

Hint #4 - If a screw seems too tight, stop and find a small hammer and a worn out screw driver. Hold the driver firmly in the screw head and give it 2 or 3 good solid smacks with the hammer. You'll be surprised how that can loosen tight screws....especially steel screws in aluminum.

Hint #5 - Replace worn phillips screw drivers, and if possible replace the screws with allen or hex head.

And BTW - I did strip one screw in the diaphram cover of my carb a few years ago...so it can happen to all of us.

Title: Re: Stripped carb screws
Post by lancer on 05/27/05 at 17:22:25

More reasons for switching to stainless steel allen head screws.
Also a good reason for switching to an aftermarket carb...much less expensive and good quality screws.

Title: Re: Stripped carb screws
Post by red2k1 on 05/27/05 at 19:07:08

Hint # 2 (impact driver) and Hint #4 above work for me every time.

Title: Re: Stripped carb screws
Post by Savage_Rob on 05/27/05 at 21:10:22

Same here: when I first saw they didn't want to budge, I tried my impact driver... too big to get it in there. So I used a screwdriver and hammer instead and just tapped it a couple of times before trying again. Worked like a charm.

And I really should replace them with some stainless allen screws next time I have it open. I did for the main eight screws on the outside of the carb but not those two inside.

Title: Re: Stripped carb screws
Post by klx650sm2002 on 05/28/05 at 02:38:50

On My FCR all the screws are allen screws as standard.

Clive W :D

Title: Re: Stripped carb screws
Post by Greg_650 on 05/28/05 at 06:01:34

klx650sm2002 wrote:

On My FCR all the screws are allen screws as standard.

Clive W :D

I wonder why phillips are so common? Are they easier to install from a production point of view?

Title: Re: Stripped carb screws
Post by WD on 05/28/05 at 07:08:06

Phillips head are less expensive. Savage is sold at bargain basement price.
-WD

Title: Re: Stripped carb screws
Post by bobo383 on 05/28/05 at 07:46:50

klx650sm2002 wrote:

On My FCR all the screws are allen screws as standard.

Clive W :D

Amal carb bowl screws are hex-head, like little bolts, with enough room to get a little socket around them - I think they are 7mm heads. They also have a slot for using with a flat screwdriver. Best bowl screws I've seen so far.

Amal slide is like a dirt bike -- needle has grooves held by an e-clip, under spring pressure. Pull the slide out and it all comes apart easily. No d@mn screws to strip out or install a-waaaaay down in there.

Now those little pesky screws in the slide of the stock Savage carb...I'd like to find the guy that designed that and work him over with some fuel hose...

Back in college, I was a car stereo installer for a while. I punched so many holes in speakers using phillips drivers, I've become an expert at piercing nearly anything with a blunt tool. I'm careful now, but I used to really mess things up.

Title: Re: Stripped carb screws
Post by Hammy211 on 05/29/05 at 23:12:07

Got them out with a 5/32 drill bit and the same size screw extractor. I was afraid at first that the bit wasn't going to reach the screw but it just did. Thanks for your help.

Title: Re: Stripped carb screws
Post by bobo383 on 05/30/05 at 08:05:06

GREAT!

Title: Re: Stripped carb screws
Post by lagagnon on 06/01/05 at 09:17:36

Ed_L. wrote:

You can also use a "glue stick" for this. Push the tip of the screwdriver into the top of a glue stick tube and the screw will stick quite nicely while you place it. This is especially great when workin gin tight areas.