HarleyTechTalk

The wife's softail was put away and sat for 2 years. It ran great prior to storage. Recently decided to fire it up and it would not idle or run without throttle, assuming varnish in the carb clogging it , I brought it to harley and had them dip the carb (Kehien CV). I received the carb back from harley in pieces jets rolling around in a cardboard box etc. I reassembled the carb and installed and it ran but would not idle properly and coughs out the carb regardless of adjusting the mixture screw. Replaced all seals on manifold thinking air leak.  Reinstalled carb again still pops out the carb and cannot set idle. Called harley asked if they cleaned the jets when they dipped the carb they said they didn't know. My jets are a 48 slow and a 170 main cannot recall the needle size. I'm getting extremely frustrated at this point. Any ideas?? 

What did you set idle mixture screw at?

You didn't assemble needle jet upside down?

Did you change the intake gaskets?

A 48 seems a little fat if it is mostly stock. Try a 45. Is it popping when cold, or warm as well, does it pop when using the enrichener? May need a new enrichener, pretty cheap. Check the accelerator pump is giving you a good squirt of raw gas when the throttle is twisted. Again, it may need a new pump diaphragm and spring.
Finally, check for holes or rips in the slide diaphragm, it usually doesn't pop when this is ripped, but just one more thing to check.

http://harleytechtalk.com/htt/index.php?topic=103618.0

Take a peek at reply number 6...

-JW

-What did you set idle mixture screw at?

Went from 1 1/2 up to 3 didnt fix problem


-------Did you change the intake gaskets?

Yes intake and manifold

-I--------s it popping when cold, or warm as well, does it pop when using the enrichener?

Pops when cold and warmed up...no popping with enrichener engaged. Accelerator gives a good squirt and no holes or rips in the slide diaphragm. 


When I run it down the road with throttle pull good until I back off...I keep thinking low speed jet and did Harley even clean the jets ?

Quote from: JW113 on April 30, 2018, 08:45:49 AM
http://harleytechtalk.com/htt/index.php?topic=103618.0

Take a peek at reply number 6...

-JW

Yup, that.

Those low speed jets can plug solid with hardened gas . Get a small stiff wire try to run it through the jet.Pull a bristle out of a wire brush use that to ream the jet clean.

As far as I'm concerned, carb dip or cleaner doesn't do sqaut to clean carbs of this newer gas, only ultrasonic seems to clean well now.
Now if the bike ran well before it sat.... why all of the suggestions about changing jets? I'm sure the dealer didn't throw in some others just for the fun of it! If it was cleaned properly & he just got it back unassembled..... assembling it should make the bike run as before it sat.... good or bad!

I agree that if it was running well before, it should still if properly cleaned. I just mentioned a different jet for two reasons:
One, it is new and clean.
Two, a 48 is pretty fat for an 80" Evo, an assumption on my part that it is an 80". (My 95" Twincam uses a 46.)

Pilot is plugged up.

The pilot jet perhaps, or somewhere in the pilot circuit. If there has been much backfiring, those low speed transfer ports under the bottom edge of the throttle plate tend to get all carboned up. Seeings how they don't make carb cleaner anymore that works worth a damn, it's hard to clean that crap out of there.

When you say the dealer did a "dip", do you know what he dipped it in? Koko is right, the only way to do it anymore is with an ultrasonic cleaner. Can be had for not much coin at Harbor Freight.

-JW

JW113----- I don't know what he dipped it in but will ask when I go pick up a 45 and 46 slow jet also
the needle is a N8EA, but like I said ran fine prior to storage.

Harley stated carb was soaked in a chemical bath. Went to local metric shop which has a ultrasonic cleaner and dropped it off to be recleaned. Also bought 45,46 and 48 jets.

FWIW, Napa has a carb cleaner in a small pail, with a dip basket that works extremely well.
All rubber parts MUST be removed from the carb prior to soaking, per instructions.

my main problem was not draining the carb,s&s -b before storage and had a blocked pilot jet the fuel turned to jelly like

Put it all together checked float and installed ........arhhhh...now its leaking out of the mixture screw ! 

Look like the carbs overflowing I'm going to check float needle,  Off it comes again  !

Leaking out, or just dripping from? Should never be a leak from there, even if it is flooding.

You did remember to reinstall the spring, washer, and little O-ring on the idle mixture screw, right?

[attach=0]

-JW

Quote from: JW113 on May 05, 2018, 09:48:28 AM
Leaking out, or just dripping from? Should never be a leak from there, even if it is flooding.

You did remember to reinstall the spring, washer, and little O-ring on the idle mixture screw, right?

[attach=0]

-JW

A fast drip and I did have all  the packing on the mixture screw right. Took it apart replaced the Float Fuel Valve just for the heck of it. Reinstalled
all good now runs great. Went with a 46 slow and I think Harley did a poor job of cleaning the carb the ultrasonic cleaning at Honda and new jet did the trick. Thanks All  !!

Sweet!