the perfact idle

What is the idle range for a warm engine to idle at

 

I think the manual says 1050 +/- 100 rpm.

 

Mine will not idle below 2500 when u bench synch do you have the valve grab the card or just enough to where u have to actually pull a little but on the notecard

 

You want the strip of paper or paper clip to pull out a little, trying to match the resistance for all 4 carbs.

 

If I over did it then would it want to idle higher ?

 

Doing a bench sync is only the first step in the sync process.

You do a bench sync to get the bike running so you can then do a RUNNING VACUUM SYNC. (With the YICS blocked.) Since the bike is running, move to the next step, your vacuum sync.

I find it easier to use Polock's method; match the relationship of the butterflies to the tiny "bypass holes" in the top of the carb throats.

Regardless, you won't get your final smooth idle without doing a proper vacuum sync.

 

So u think I should do the vaccun test with my idle stickin at 2500rpms could it lower my idle rpms

 

Sorry for the questions I just want my bike running good and this is the first time carb synchin

 

http://xjbikes.com/Forums/viewtopic/t=2 ... ooter.html

You do a running sync and start fine-tuning the Pilot jets and lowering your idle all at the same time. Search topics - Colortune, Running sync, plug chop.

 

While your bike is running spray starting fluid around all your carb boots and such to look for any vacuum leaks. You're going to pull your hair out trying to sync the bike with vacuum leaks.
Your question is usually the one that opens the can of worms that leads to doing the valves and sorting out the carbs.

 

Valves are good floats are good gas at the right level benched synched

 

Good.

Now it's time to do a running vacuum sync. With the YICS blocked.

Then you tweak the mixtures, and re-sync. When it's right , it will idle smoothly at 1050, immediately 'snap' to throttle input, and just as quickly return to idle.

You're close. All you need to do is complete the process.

 

Ok cool thanks bigfitz I think u and a couple others have answered almost every question I've asked so far