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Old 04-13-2005, 05:34 PM   #1
loud640 OP
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Talking BST idle mixer screw adjustment tools

Well, I have re-jetted my '03 640 ADV in line with Flanny's recommendations (thanks Flanny). Given a handful of throttle she flies like the wind. But the bad news is that it is crap at small throttle openings, I tried full throttle everywhere, but its just too dangerous!!

So I reckon I need to fettle the idle mixture (currently 2½ turns out)... BUT what a bitch it is to get to that screw. Today I found a Motion Pro FCR kit that I thought would help http://www.motionpro.com/Docs/convtools_2.html but it is a bit too long (especially if you have an electric start).



So today I took the carb (partially of just to adjust that 'king screw.

I want a tool that works, I have seen Creepers tool but I don't really want to pay $110!




So what works (well)? Has anyone tried the Sommer ones? http://www.ktm-sommer.de/Seiten_05/f_zubehoer_05.html



Any other suggestions?


Neil

loud640 screwed with this post 04-13-2005 at 05:49 PM Reason: screwed up emoticons
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Old 04-13-2005, 05:42 PM   #2
Jamie
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I need one too!
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Old 04-13-2005, 05:53 PM   #3
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Loaded is working on a cure to the common lack of tool for this little issue... wait for it.

He's a few weeks behind...
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Old 04-13-2005, 06:01 PM   #4
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Quote:
Originally Posted by creeper
He's a few weeks behind...
he idn't behind... the damn fruitcakes who are supposed to be fixing a control board in the cnc lathe are behind


oh... and i'm not pushing them too hard.

i'll do drawings next week and let yoy guys know when i can get a bunch made... i'm sorry
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Old 04-13-2005, 06:14 PM   #5
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Originally Posted by Loadedagain
i'm sorry
Oh... now I've done it, made 'em cry I did. Bad Chris... bad.
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Old 04-13-2005, 06:18 PM   #6
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No pics, sorry, but it ain't pretty

I took a cheap tiny screw driver and cut the blade off so the blade section cut off was about 1" long. I then cut a section of the plastic handle off the top of the screw driver about 1" long. I then heated the 1" blade section until red hot and inserted it into the 1" plastic handle section.

Result. I have a screw driver that fits the mixture screw and it is just over 1 inch long and it fits in the stock KTM took kit.
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Old 04-13-2005, 06:22 PM   #7
creeper
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Quote:
Originally Posted by Rad
No pics, sorry, but it ain't pretty

I took a cheap tiny screw driver and cut the blade off so the blade section cut off was about 1" long. I then cut a section of the plastic handle off the top of the screw driver about 1" long. I then heated the 1" blade section until red hot and inserted it into the 1" plastic handle section.

Result. I have a screw driver that fits the mixture screw and it is just over 1 inch long and it fits in the stock KTM took kit.
But if Loaded makes some long BST screws... you're all over one ain'tcha?
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Old 04-13-2005, 06:28 PM   #8
Arch
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Quote:
Originally Posted by creeper
But if Loaded makes some long BST screws... you're all over one ain'tcha?
Count me in. BTW, Neil, the one you have pictured that Sommer/KTM sells - won't work on a BST.
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Old 04-13-2005, 06:37 PM   #9
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Quote:
Originally Posted by Rad
No pics, sorry, but it ain't pretty

I took a cheap tiny screw driver and cut the blade off so the blade section cut off was about 1" long. I then cut a section of the plastic handle off the top of the screw driver about 1" long. I then heated the 1" blade section until red hot and inserted it into the 1" plastic handle section.

Result. I have a screw driver that fits the mixture screw and it is just over 1 inch long and it fits in the stock KTM took kit.

but.... It's still a hot bitch to do. I did the same thing eggzactly and it gets mighty warn in there trying to adjust the damn thing.
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Old 04-13-2005, 06:38 PM   #10
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Quote:
Originally Posted by creeper
Loaded is working on a cure to the common lack of tool for this little issue... wait for it.

He's a few weeks behind...
aren't we all?
last week countdown. I'm officialy a short timer
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Old 04-13-2005, 07:19 PM   #11
creeper
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Quote:
Originally Posted by dagwood
aren't we all?
last week countdown. I'm officialy a short timer
Then what... retirement?
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Old 04-13-2005, 07:34 PM   #12
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Quote:
Originally Posted by creeper
Then what... retirement?
no ......

start wensday at another shop. . the guys an old biker nut job and loves to tinker with em. funny as hell. think its gonna be a good thing. no Oreegone tax's either. local... Wooot!
old place pissed me off and I let them know. don't think they appreciated my opinion.
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Old 04-13-2005, 08:06 PM   #13
creeper
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Quote:
Originally Posted by dagwood
no ......

start wensday at another shop. . the guys an old biker nut job and loves to tinker with em. funny as hell. think its gonna be a good thing. no Oreegone tax's either. local... Wooot!
old place pissed me off and I let them know. don't think they appreciated my opinion.
You will be a happier camper anywhooo... good fer you.
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Old 04-13-2005, 08:11 PM   #14
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Quote:
Originally Posted by creeper
You will be a happier camper anywhooo... good fer you.
... cept he rides ....*Gasp* Choppers
money.... no matter how much you make if it sucks it still sucks.
I used to like to go to work and lately I just have to drag myself in. that is changing.
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Old 04-13-2005, 09:26 PM   #15
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If you think the BST mixture screw is hard to get at, you oughta take a look at how bleak the situation gets when you're wrassling with an FCR on an older LC4 with the microfilter behind the cylinder. WTF were they thinking?

I did the Creeper thing and made a shorty scroooo-driver for the BST equipped bike.

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