No Idea

Yes 2.5 turns out

 

Only thing I can figure out is maybe cause my intake boots arnt in the air box all the way..

 

Out of sync can very easily cause that…

 

In sync now. Still doing it, must have an air leak issue.

 

Propane test

 

link says this its site has a shim pool http://www.maxim-x.com/notes.html

to answer his 11/02/17 post a little late

 

Update**

No leaks what so ever around any of the boots or intakes.
Everything is set.

She's going up for sale.

 

One last thing. That I know for a fact.
The carbs have a fresh rebuild.
Its in sync. Its been colortune. The floats are fine. The lines are fine. The peacock is fine. The flow of gas is fine.
This problem started a month before I laid it up last season. Which gives me reason to believe its nothing at all to do with carbs .

 

I think Chitwood was on the right track. I would tweak the mixture screws out a 1/4 turn and see if it makes any difference. If not try tweaking another 1/4 turn. If still no improvement try going leaner for a few goes.

 

Has ignition/electrical been tested/verified in any capacity?

If it were myself - I would be performing a full system(s) check. Can't burn all that fuel if you haven't got sufficient spark across the rev range.

 

Coils checked out fine.
Not sure how to check the rest .

 

you test the pickup coils by disconnecting a connector at the tci and doing an ohm test gray and orange wire to the black wire it will be the connector that does not have the red/white wire.
tci test is to send it to someone who is willing to put it in their bike and run it around for a few days.

how is the charging system ?

 

Ill give that a try tomorrow.
Charging system seems to be fine. Not sure how to test it though.

 

Pick-up coils:
120 ohms +/- 20% = 96 ohms to 144 ohms acceptable range
Spark plug caps:
1985 XN/XNC models: 10K +/- 20% = 8,000 to 12,000 ohms per cap acceptable range
1986 SX/SXC models: 15K +/- 20% = 12,000 to 18,000 ohms per cap acceptable range


Spark plugs:
1985 XN/XNC models: 0 ohms per plug
1986 SX/SXC models: 5K ohms per plug


put a voltage meter on battery and check voltage at
* 3000+ rpms: 14.2 volts up to about 14.8 volts, with a maximum of 14.8 volts (all XJ700-X and XJ750-X)

this thread explains testing and how
The Ultimate Relay, Switch, Sensor, and Diodes Guide

 

I absolutely sure there's no leaks anywhere..... Next thing to check will be the head gasket or cyl base gasket

 

Did propane test around each side of the carbs.
Will double check with starter fluid .
Head and cyl base gasket are tight and sealed.

 

Silly question, @Joe34, but have you done a compression/leak down test?

 

1.Did you test around all 8 ends of the carb to manifold boots?
2.how do you know that the gaskets are tight and sealed?
3.doublecheck the exhaust collars, too

I'm still gonna say it's a leak at one of the boots

 

Are all four cylinders firing? Are exhaust headers equally hot?