BST idle mixer screw adjustment tools

loud640 · 04-13-2005, 04:34 PM

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 2Â½ 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

Jamie · 04-13-2005, 04:42 PM

I need one too!

creeper · 04-13-2005, 04:53 PM

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...

Loadedagain · 04-13-2005, 05:01 PM

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

creeper · 04-13-2005, 05:14 PM

Quote:

Originally Posted by Loadedagain

i'm sorry

Oh... now I've done it, made 'em cry I did. Bad Chris... bad.

Rad · 04-13-2005, 05:18 PM

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.

creeper · 04-13-2005, 05:22 PM

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?

Arch · 04-13-2005, 05:28 PM

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.

dagwood · 04-13-2005, 05:37 PM

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.

dagwood · 04-13-2005, 05:38 PM

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

creeper · 04-13-2005, 06:19 PM

Quote:

Originally Posted by dagwood

aren't we all?

last week countdown. I'm officialy a short timer

Then what... retirement?

dagwood · 04-13-2005, 06:34 PM

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.

creeper · 04-13-2005, 07:06 PM

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.

dagwood · 04-13-2005, 07:11 PM

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.

gaspipe · 04-13-2005, 08:26 PM

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.

04-13-2005, 04:34 PM	#1
loud640 ^OP I like beer!! Joined: Mar 2005 Location: Alicante, Spain Oddometer: 33	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 2Â½ 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 04:49 PM Reason: screwed up emoticons

04-13-2005, 08:26 PM	#15
gaspipe Just a dude.... Joined: Jul 2004 Location: Pickwick Lake, Tennessippi Oddometer: 11,205	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. __________________ gaspipe [the original] I contend that for a nation to try to tax itself into prosperity is like a man standing in a bucket and trying to lift himself up by the handle. -- Winston Churchill

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04-13-2005, 04:42 PM	#2
Jamie stay weird Joined: May 2004 Location: Shelby, NC Oddometer: 1,169	I need one too!

04-13-2005, 04:53 PM	#3
creeper Still alive... Joined: Dec 2003 Location: Puget Sound Oddometer: 10,718	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...

04-13-2005, 05:18 PM	#6
Rad Just me Joined: Sep 2001 Location: Santa Cruz, Calif Oddometer: 12,130	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.