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90 degree screwdriver

Nope. Not enough room to swing side to side. I need something that twists like a screwdriver.

Somebody makes a gear-driven rotary ratchet wrench, but I can't think who. I came across mention of it on Garage Journal a couple of years ago.
I seem to recall it wasn't cheap, either.
It's pretty much like the tool up there, but more substantial and available in 3/8" and 1/4" drive. Just place it and twist the handle, same as that one.
 
those wacky japanese and their contortionist mechanics at it again

I recall it being a common complaint amongst mechanics when the 400/4 mini-GP bikes started coming in. No room to work on anything.
 
I have some tool where you squeeze the grip to get the driver to turn... useless for the same reason. You can't tell when it's engaged & barely how much you're turning. These days I use these which do the job with a bit of fiddling about...

Think I got mine at an ace hardware in their "bargain bin" for not much money...

https://www.summitracing.com/parts/...vgOI5bV3pyxxgtv9iNe5dbenuz0uDBMEaApTcEALw_wcB

wmr-w80004_ml.jpg
 
It's been a while since I was in that predicament on my Gen 1, I had a cheap 90 degree unit that worked on carbs 1 & 2 and maybe 3 coming in from the left side. On carb #4 I took a small 3" long flat blade screwdriver and cut 90% of the plastic handle off. I can reach in from the #4 side (right side). With the handle gone there is enough room to position the screwdriver vertically inside the adjustment screw collar. . I may have used the same technique from the other side on the #3 carb but can't remember back.

I saw the Phaseshifter "Phess up" on the FZ1OA. Always something.
Yep that's me.
 
On the GS1100G I used a short multti-tip screwdriver and a Gunson Colortune.
Probably more room on the 1100G than any other straight 4 bike.
On my GSXR 1127, I could only fit a screwdriver tip and my hand under the carbs.
I bought an angled carb adjustment screwdriver like the one Spyder linked, but it has no feedback feel, so I got frustrated with it.
Spyder and I have the similar engines with Slingshot carbs.
 
I'm telling you. Take the handle apart, and pull that little BB out. It's the "clicking" that is losing the "feel" of what you're doing. It doesn't make it perfect of course, but it beats taking them out for a freaking air screw adjustment. Which is what I was doing until I bought this thing. I too got frustrated, and a bit pi$$ed because it isn't cheap. I got determined to MAKE this thing work. Give it a try...
 
I bought the cheaper motion pro a long time ago to get into the carbs on my 94 GSXR750 which I had overbored to a 907. There for awhile I was constantly taking the carbs loose to adjust trying to get the mixture right. Even though everyone doesn't like the cheaper version, for somebody who might need this once every couple years it's a lot better than nothing. It's basically a tube with a bend and a flat bit attached to a cable which runs through it. It has a regular screwdriver handle attached at the other end and you can pull the cable back and forth which sucks the bit in and out of the end. People think this is stupid, but it's just something you have to think about when using it. You can control the pressure on the screw with it. Then the end of the rigid tube it rides in is flared at the end to allow it to hug the boss your mixture screw is in and align it.
 
Here's a hardware store geardrive I use where it works..seen on an inner 650's CV carb here, but yes,it's a nuisancecatching the slot . Really, it's better to lift the tank out of the way so I can see what's what....(obviously, bits can be changed and various screw drivers to turn the end) NOTE where I filed the bulky casting away so it'd fit where it didn't before
90degree-mixadjust.jpg

Edgecrusher's post
Then the end of the rigid tube it rides in is flared at the end to allow it to hug the boss your mixture screw is in and align it.
was interesting...something could possibly be added to any of these tools suggested to help align it over the screw.
 
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The blue Motion Pro tool came in the mail today. I took the BB out and it does work better that way. I was having trouble with the gears not meshing smoothly and kinda "catching". I dribbled some engine oil on them and it worked much better. Got the job done but not as well as I'd hoped. At least I didn't have to pull the carbs.
 
Yeah, now that you mention it, I had to lube it up as well. And that is EXACTLY why I was fairly happy with it (after the minor modifications). I don't have to pull the carbs out just to adjust the mixture screws.
 
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