Damn Plastic
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Hooked
Primavera 150
Joined: 17 Sep 2017
Posts: 233
Location: Long Beach, CA
Mon Dec 03, 2018 11:31 am quote
I need to get the plastic off my handlebars to get at the headlight (Primavera). I cannot get the two long screws to come out. I'm about ready to get a left hand drill bit and go at it. Any tips?
Addicted
lx 50
Joined: 09 Oct 2017
Posts: 563
Location: Brighton
Mon Dec 03, 2018 11:40 am quote
Are you saying the threads have gone in the receiving plastic half?

Are they countersunk in a recess? If not can you get a small flat blade screwdriver under the head to prize it away whilst you unscrew the screw?

Alternatively can you attempt to pull on the plastic piece as you unscrew it so it starts to move out. Once itís starts it should keep going.
Hooked
Primavera 150
Joined: 17 Sep 2017
Posts: 233
Location: Long Beach, CA
Mon Dec 03, 2018 2:57 pm quote
It's in a deep recess and it won't turn at all.
Ossessionato
BV350, Yamaha Zuma 125, Yamaha FZ6, Toro 3521
Joined: 06 Jun 2013
Posts: 2202
Location: The Twin Cities of Minneapolis/Saint Paul, Minnesota
Mon Dec 03, 2018 2:59 pm quote
Are you sure you are using the correct driver?
Hooked
2006 LX150 (carbed) | 2007 GT200
Joined: 29 Jun 2016
Posts: 481
Location: Toronto
Mon Dec 03, 2018 3:27 pm quote
pokeyjoe wrote:
It's in a deep recess and it won't turn at all.
It literally won't turn (stuck. Which would be strange for plastic,, or it spins freely (threads stripped)?

I can't really picture which headset screws are in a deep recess? Can you describe more - or even better, post a photo?
Hooked
Primavera 150
Joined: 17 Sep 2017
Posts: 233
Location: Long Beach, CA
Mon Dec 03, 2018 4:40 pm quote
It's a #2 Philips screw with aggressive threads (like a drywall screw). It won't turn. I'll try to get a pic.
Addicted
lx 50
Joined: 09 Oct 2017
Posts: 563
Location: Brighton
Mon Dec 03, 2018 11:04 pm quote
Did you buy the scooter new?

Maybe the threads started stripping (if used) for the last owner and they put glue on?

My next route would be the right size driver but one with a hole in the handle with another screwdriver fed into it to give me more leverage.
Just ensuring Iím applying a lot of force to keep it in the screw head.
Veni, Vidi, Posti
2008 MP3 500, 2013 BV350
Joined: 13 Oct 2012
Posts: 5979
Location: Ashburn, Va. Home to the Internet
Tue Dec 04, 2018 4:48 am quote
northernerbill wrote:
Did you buy the scooter new?

Maybe the threads started stripping (if used) for the last owner and they put glue on?

My next route would be the right size driver but one with a hole in the handle with another screwdriver fed into it to give me more leverage.
Just ensuring Iím applying a lot of force to keep it in the screw head.
Or use a square shank screw driver and a wrench.
Ossessionato
BV350, Yamaha Zuma 125, Yamaha FZ6, Toro 3521
Joined: 06 Jun 2013
Posts: 2202
Location: The Twin Cities of Minneapolis/Saint Paul, Minnesota
Tue Dec 04, 2018 4:57 am quote
That will almost certainly result in twisting the head off the screw. A screw in plastic shouldn't be so hard to remove.

Be sure the screwdriver is actually fitting into the slot in the screw -- and isn't wedged between the screw head and the wall of the recessed hole. That's happened to me.
Veni, Vidi, Posti
2008 MP3 500, 2013 BV350
Joined: 13 Oct 2012
Posts: 5979
Location: Ashburn, Va. Home to the Internet
Tue Dec 04, 2018 5:00 am quote
JKJ-FZ6 wrote:
That will almost certainly result in twisting the head off the screw. A screw in plastic shouldn't be so hard to remove.

Be sure the screwdriver is actually fitting into the slot in the screw -- and isn't wedged between the screw head and the wall of the recessed hole. That's happened to me.
That is fine, it is just a screw. At that point he will be able to get it apart and fix it if it does break. Bet it comes out though, never had a screw break off in plastic in all the years I have worked on bikes.
Hooked
Primavera 150
Joined: 17 Sep 2017
Posts: 233
Location: Long Beach, CA
Tue Dec 04, 2018 4:01 pm quote
It's a Philips head. The bit just wants to walk out of the screw. I've been trying a nice new screwdriver to no avail. You have to push to keep the bit from walking out, but that's counter-productive.
Addicted
lx 50
Joined: 09 Oct 2017
Posts: 563
Location: Brighton
Tue Dec 04, 2018 11:07 pm quote
Iíd be continuing along the same route I mentioned earlier using one screwdriver to lever the other BUT now Iíd be rifling through my flat head screwdrivers to find one thatís a snug fit in the screw head.
The heads already knackered by the sounds of it so not much to lose.

After that yeh Iíd be drilling too, just make sure the drill is not much bigger than the thread of the screw in case you donít notice in time when the head slides off. Then you can use grips to remove the final piece once the the two halves are apart.
Molto Verboso
2018 Vespa GTS 300 ABS- Bianco
Joined: 20 Apr 2013
Posts: 1398
Location: E. KY
Wed Dec 05, 2018 5:33 am quote
Like said breaking off in plastic is weird but so is buggering the head in plastic.
A steel screw in plastic maybe the last one in there used a different screw head than you are assuming-or have you laid eyes on that screw head?
Veni, Vidi, Posti
2008 MP3 500, 2013 BV350
Joined: 13 Oct 2012
Posts: 5979
Location: Ashburn, Va. Home to the Internet
Wed Dec 05, 2018 9:53 am quote
This is why having good screwdrivers of the right size is a necessity.
Ossessionato
Kymco Like 200i (Sold)
Joined: 04 Jun 2012
Posts: 2325
Location: San Jose, CA
Wed Dec 05, 2018 10:00 am quote
Do you have a hammer drill? That may work to break the bond. You can also apply the tip of a soldering iron/gun to the head of the screw being careful not to overheat it.
Enthusiast
GTS 250, Harley FXST,
Joined: 16 Nov 2010
Posts: 90
Location: Derbyshire UK
Wed Dec 05, 2018 10:42 am quote
I've had success removing a seized screw from GRP by heating it with an electric soldering iron placed on the head.

Can you get a slim one down the recess without damaging anything?
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