HOW TO: Bench-synch your carbs

MiCarl:

Code:

Option Base 1

Does that fix it for ya? :wink:

For the rest of you scratching your head (WARNING: Geek Content), Option Base 1 is a computer command which is defined as being: "Used at module level to declare the default lower bound for array subscripts." The numeral 1 indicates that arrays start at 1 instead of their default base of zero.

 

I'm not sure that is available in FORTRAN :wink:

 

MiCarl: No, but arrays in Fortran start at base 1 by default unless otherwise defined.

Who knew: carb talk and a little computer science all in the same discussion. :grin:

 

Those kind of things tend to happen here.

 

Does this suggest that the predominance of our forum tend to be geeks?

 

Get out and ride ya nerds.

 

I just wanted to say Awesome Walkthru Gamuru. I followed these directions this weekend on my XJ650 and It runs so much better.
Just gotta get my hands on a yics stick now.

Thank You

 

Hey Loki, here they are!:


vv7) Reproduction YICS Port Blanking "Block-Off" Tool---this is the tool you'll need to perform a proper carb synchronization on any YICS motor......without it, you're just wasting time. This block-off tool is used to isolate each cylinder from the others while perfoming a carb synch. Updated version of the factory #90890-04068-00 tool. Some people claim that this tool is NOT needed to perform a proper synch; we disagree, and so do the Yamaha engineers who designed the YICS system. Quality aluminum tool features a snap-open and shut trunnion handle design like the original. This is NOT a cheap home-made tool and has all the proper seals, dimensions, and high-temp insulators as an original factory tool. IN STOCK!

HCP93 reproduction YICS port blanking tool, each:
$ 37.00

 

Hey Chacal

When is your website going up? When it does are you going to have pics? Man, sometimes when you get going on techinal stuff my head starts to spin. I don't know what everything is called so pics might not be a bad idea. Of course that is if you have space.

Wm

 

Eventually, I promise!!!

 

If I bench sync that means I don't have to syncronize my carbs with a syncronyzer once they are installed it?

 

Bench sync puts them in the ball park to get the bike running, then you must sync with vac' gauge/s.

 

I already did the sync with vac gauge/s but I wonder if I should bech Sync and then Vac again, but my grandpa' would say "if it works don't fix it".

 

You're good with the vac sync. Bench sync is to get it at a good running position so you CAN vac sync

 

SLKid- Got it. Thanks for your reply!!

 

Thanks for the explaination on bench sync, I finally get it... I bought a 85 Xj700 Maxim X a couple monthes ago. I've got what I think to be carb problems, Just trying to understand them a little better before I start asking questions. The knowledge you guys have about these bikes is amazing...

 

Bringing this back from the dead.... If this isn't a sticky it really needs to be.

How can I get the carbs in the right ballpark to vac synch them if they are already on the bike? I'm feeling too lazy to take them back off right now. If I can't find a way to get them good enough to get the bike to idle, so I can synch them I GUESS I'll pull them tomorrow morning

 

You dont have to pull the Carbs.

You can SKIP Bench Syncing and just do VACUUM Syncing.

 

What if I can't get it to idle though? That's the dilema. I HAD it idling yesterday, but now can't seem to get it to. Can't mess with it today, because the wife is home, but I will pull it out of the shed first thing in the morning.

 

crank the idle knob till it runs then as it comes into sync keep backing off the idle knob till you get it down to 1K
keep a fan on it so it doesn't over heat