fuel screw trouble
04-11-2012, 01:12 PM
#1
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Squid
Thread Starter
Join Date: Mar 2012
Location: mass.
Posts: 39
fuel screw trouble
is it just me or did anybody else have trouble turning the fuel screw? I bought the D shaped bit to turn the screw, but because the screw is a soft metal, it just striped the head. after, i tried to slot the screw so i can use a screwdriver to turn it instead but still wouldnt move. anybody know an alternative? Im not sure if i can buy those screws or need a whole new carb now.
Last edited by toeknee19; 04-12-2012 at 02:24 PM.
04-11-2012, 01:55 PM
#2
the boss
SuperBike
Join Date: Mar 2010
Location: largo,fl
Posts: 1,182
did it happen on one or both of them,you may have to go deeper with the slotting to get it out.
on my old carbs,they were stuck too,but didnt attempt to get them out since i had new carbs with needles that moved in and out.
im not sure,but you may be able to get to them from the inside,but im not sure at all.
someone who knows will chime in.
it is important not to ever put any kind of force on it at all when putting them in,just seat it lightly and youre there,for when you put new ones in.
on my old carbs,they were stuck too,but didnt attempt to get them out since i had new carbs with needles that moved in and out.
im not sure,but you may be able to get to them from the inside,but im not sure at all.
someone who knows will chime in.
it is important not to ever put any kind of force on it at all when putting them in,just seat it lightly and youre there,for when you put new ones in.
04-11-2012, 02:43 PM
#3
Senior Member
Superstock
Join Date: Jul 2007
Location: Los Angeles & Winston Salem
Posts: 433
Both times I have done this, I just used some tweezers to get the d-shaped screw out. Then on the bench put a slot in them. I've never had a issue removing them?
That sucks!
May soak with some WD-40 overnite, and try again? if they are cross-threaded you could be SOL! Post up a pciture of what you have done so far, I'm sure some one on here can help. Where are you located?
That sucks!
May soak with some WD-40 overnite, and try again? if they are cross-threaded you could be SOL! Post up a pciture of what you have done so far, I'm sure some one on here can help. Where are you located?
04-12-2012, 01:00 PM
#6
Senior Member
Back Marker
Join Date: Mar 2008
Location: Massachusetts
Posts: 229
I assumed the OP was talking about the Pilot screw (see 5-11, 5-13 and 5-21 of the service manual). If not, I'm not aware of another D-shaped screw.
04-12-2012, 01:06 PM
#7
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Squid
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Join Date: Mar 2012
Location: mass.
Posts: 39
because the metal is so soft, the heads are completely broken off on both screws. i have installed a 48 pilot, hopefully the bike will run ok with the stock fuel screw settings. btw how did u install image on a post, do u have to upload it to a image site 1st?
04-12-2012, 01:08 PM
#8
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Squid
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Join Date: Mar 2012
Location: mass.
Posts: 39
04-13-2012, 06:40 AM
#10
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MotoGP
Join Date: Jul 2007
Location: NYC
Posts: 5,033
Heat? I would recommend against that. Just use a dremmel cut-off wheel to slot it.
(or by hand with a hacksaw blade)
Heating carbs can only lead to great unhappiness. They were not designed to survive that.
(or by hand with a hacksaw blade)
Heating carbs can only lead to great unhappiness. They were not designed to survive that.
04-13-2012, 09:09 AM
#11
Senior Member
MotoGP
Join Date: Jul 2010
Location: Phoenix, AZ
Posts: 3,869
I would just slot it like others have mentioned. Remember... lefty, loosy! Maybe spray tons of cleaner down in there.
To attache pics, either host them on a site like photobucket and copy the link, or you can open your attached ones and click on the little "insert image" mountains a the top of your screen, copy the html and insert it a like so:
To attache pics, either host them on a site like photobucket and copy the link, or you can open your attached ones and click on the little "insert image" mountains a the top of your screen, copy the html and insert it a like so:
04-13-2012, 12:33 PM
#12
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Squid
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Join Date: Mar 2012
Location: mass.
Posts: 39
finally! i dremmel down half to the threads and they both came out with PB blaster, muscle and patience. i will post pics later. i noticed that the front carb fuel screw had a little washer in between the spring and the rubber seal. However the rear carb was missing that washer...do any of u know if there is supposed to be a washer? looks like the fuel screw has been tampered with because it was set at 2.5 turns
04-13-2012, 03:49 PM
#13
the boss
SuperBike
Join Date: Mar 2010
Location: largo,fl
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Toeknee19,I have a spare carbs I'm not using right now,and will be rebuilding down the road,if you want,I can let you have the needles in mine,so you could get a nice solid slot.
I will get some new ones down the road.let me know.
I will get some new ones down the road.let me know.
04-14-2012, 03:40 PM
#15
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Squid
Thread Starter
Join Date: Mar 2012
Location: mass.
Posts: 39
with all the cutting into the carb leaving dust, i want to make sure there was no dirt on the needle, which there was..... plus i wanted to make sure all the parts were there since i am the 3rd owner of this bike and wasn't sure what was done. also, i installed 48 pilot....wow what a difference, right on the money. tommorrow i want to used a temperature gun to see if both cyclinders are running the same temp. thanks everybody for all your help
04-15-2012, 01:37 PM
#16
the boss
SuperBike
Join Date: Mar 2010
Location: largo,fl
Posts: 1,182
i will be sending out the needles soon,i had a hard time getting one needle out,but it is still good.
just make sure youslot them real good the first time around and clean the threads.
let me know when you get them.
just make sure youslot them real good the first time around and clean the threads.
let me know when you get them.
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