Carb synch Mikuni

[Ton1959]

I tried to synchronize the carbs today but it was to hard to undo and tighten the locknut so I had to order the special tool for that. Getting them adjusted is easy but have to wait again now before I can tighten up the locknet without turning the screw.

 

[Gregory]

I bet Chuck H will be checking out this thread and give some good pointers. I wanted to comment so I would be subscribed to this thread since I am also getting ready to use my new Carbtune for the first time on my VM carbs.

 

[chuck hahn]

Shoot some carb spray on them to help loosen the varnish and crud that can jam the nuts a little. Once they are loose, hit again with some spray and run the nut back and forth to clean the threads out.

I use the long extentions and the 1/4 inch drive ratchet to break them loose initially if the are being tough.

 

[Ton1959]

Undoing them was not a problem but making sure the screw doesn't move when you tighten up the locknut requires the special tool that I just orderded. The angle just isn;t right to put a spanner on the nut while tightening up the screw. And with this tool the problems should be over.

 

[Ton1959]

And for petrol I just used an old oil container upside down. That will work. Cut a bit out for filling purpose.

 

[jsandidge]

sometimes

sometimes

Undoing them was not a problem but making sure the screw doesn't move when you tighten up the locknut requires the special tool that I just orderded. The angle just isn;t right to put a spanner on the nut while tightening up the screw. And with this tool the problems should be over.

That special tool is very nice. I still have a little problem with it on my #4 carb though. The synch screw is very close to the throttle cable making it tough to get onto the locknut. It does work with some fiddling though.

 

[chuck hahn]

Your threads are full of gunk..clean them and the adjuster wont spin with the nut..and I use my 1/4 drive and extentions on both CV and Vms without a hitch.

 

[loud et]

Also (on BS series CV carbs) make sure the spring/ pin that the adjuster pushes against is free. I had one stuck solid in the hole and wondered why I couldn't get any adjustment. Pry a thin screwdriver in there to make sure it moves up and down freely.
Just an oddball thing to check.

 

[Ton1959]

Your threads are full of gunk..clean them and the adjuster wont spin with the nut..and I use my 1/4 drive and extentions on both CV and Vms without a hitch.

But the tool that I buy is cheaper then the 1/4 drive set. Its a choice we have to make sometimes.

 

[chuck hahn]

I was assuming youd already have the ratchet and sockets..they are very handy where a bigger 3/8 drive wont fit in.

 

[Ton1959]

I was assuming youd already have the ratchet and sockets..they are very handy where a bigger 3/8 drive wont fit in.

I have the 3/8 drive an dthe 1/2 inch drive. The 1/4 is not one that is worth having for me as it hardly gets used.

 

[lrgguy]

I have the 3/8 drive an dthe 1/2 inch drive. The 1/4 is not one that is worth having for me as it hardly gets used.

I think I use my 1/4 drive the most on my bike and a small little kit with the standard metric sizes that are most commonly used on the bike and they fit in the little storage box on my bike to have at all times ..

 

[Ton1959]

I think I use my 1/4 drive the most on my bike and a small little kit with the standard metric sizes that are most commonly used on the bike and they fit in the little storage box on my bike to have at all times ..

There is hardly anything that I can tighten up on cars or bikes with a 1/4 drive. Things like calipers wheels and other engine bits is usually 3/8 or 1/2 inch. Unless you usually do things to the speedo or anything like that

 

[rustybronco]

Cam covers. Stator covers. Clutch covers. Battery box bolts. Seat hardware etc.

You didn't happen to own a GS1100GK and live in Wisconsin at one time did you?
http://www.thegsresources.com/_forum/showpost.php?p=2061026&postcount=3889

 

[tkent02]

Damn, I haven't used a 1/2 inch drive tool on a bike in a Hell of a long time. Almost exclusively the 1/4 drive, once in a while the 3/8 but it's so clumsy.

1/2 inch is for trucks.

 

[JTGS850GL]

1/2" drive, for me, is the only size that has a socket for the rear axle nut. Beyond that it's mostly the 1/4" set and sometimes the 3/8" set as well.

 

[eil]

It all depends on the sockets you have. My hodgepodge of cheap sockets are mostly 1/4" up to a certain size (14mm?) and 3/8" after that. I believe all of my deep-well impact sockets are 1/2".

 

[dgates1]

Anybody know if you can order that “special tool” for the synch screws and locknuts anymore and what it might be called to search for??

 

[1978GS750E]

Maybe start a new thread instead of asking in a 10 year old one would get better answers?

 

[dgates1]

Just thought this one already had the relevant information. Tried searching for a post that already discussed it but didn’t know what terms to search for.