Carb Synchronizing

[Shotgun]

I have 36K on my 98 Standard.  I've never synchronized the carbs.  Do I need to?  What are the symptoms?  I noticed last year that when I come off a long freeway run, it idles high for a few minutes.  It never used to do that.  Any ideas?

[Grandpot]

Shotgun:

It's real simple if you build the manometer in this link:
http://www.valkyrieforum.com/forum/vrcc_tech.cgi?read=1445829

This was built my another member so I can't take any credit for it.  It works great and will cost you less than $20 to build.

Two tricks need to be added:
1. On the carb ends of the clear hoses, splice in a one foot piece of 5/32" vaccuum line.
2. On line #6 splice in a "T" so you can hook up the petcock vaccuum line with the carb.

This unit works well because you can see levels of all the carbs at the same time.

Go to the Shoptalk page and you will see the basic procedure.  They use a four line unit so disregard those references.

You can slowly raise the RPM while doing the sync to see the effects at different speeds, but DO NOT close the throttle quickly.  It will increase the vaccuum and suck the ATF into the carbs.

Have fun. 

[Zorba]

The "Morgan Carb Tune Pro" has come down in price , can find them for around $100 now on the internet, they are great and simple to use!!!
Just listen and only adjust the carbs when the radiator fan is NOT running!
You might be due for a sync ?

[Shotgun]

Thanks for the tips, I'll get on it

[woefman]

The "Morgan Carb Tune Pro" has come down in price , can find them for around $100 now on the internet, they are great and simple to use!!!
Just listen and only adjust the carbs when the radiator fan is NOT running!
You might be due for a sync ?

If a Guy were to buy two of these units , could he Use a "Tee " to read Carb # 3 on both units without any ill effects ? 


Bottom line I'd rather see all cyl's at same time.

Would like to build the tranny fluid one, but creating projects is not my best trait. Also my luck it would leak or fume me out if got into the carbs.

[JetDriver]

It's real simple if you build the manometer in this link:
http://www.valkyrieforum.com/forum/vrcc_tech.cgi?read=1445829

Somebody have a valid link for this?  I get "file error" with it.

[John U.]

Try this link, it has pics and scroll down for a discussion of how to build and a parts list: http://www.valkyrieforum.com/bbs/index.php/topic,3863.msg29002.html#msg29002

[JetDriver]

Thanks John- that's what I needed!

[matt]

i like the meter   but where can one get the tool to adjust. I say one once where it had a long handle and just the inner spot turned to adjust screw thanks for any help

[John U.]

You may be thinking of the pilot screw tool, D shaped, Motion Pro has them. You can get just the srew driver 1/4" tip to use in a stubby driver.
The carb sync screws are just phillips head.

[JetDriver]

Redeye has them, too.  Here's a link for one; he's also got a regular size tool for working on them on the bench.  http://redeye.ecrater.com/product.php?pid=5604503

[Larry]

+1 on Red Eye's tool, it fits like a glove.

[Patrick]

As for the pilots; I remove them and cut a slot in them for a normal screwdriver and then add a dab[technical term] of never-seize to the threads upon reinstallation.. They have been known to seize..
Adjust the pilots before the sync..
As for the sync, this has been hashed over thru-out the years, but, I just use some vacuum tube, a 'T'[for #3], forceps and a plain old vacuum gauge.. This works just fine and its quick..