Chainsaw Repair

How To Basics - Carb Fixes + Mods - IPL and Service Manuals => Carb Fixes and Mods => Topic started by: scott kunz on August 26, 2012, 01:38:40 am

Title: walbro hda 199 carb fix
Post by: scott kunz on August 26, 2012, 01:38:40 am
don't know if this is the right place for this or not.
if your hda carb is acting up, i can fix it.
$25.00 plus shipping

scott
Title: Re: hda carb fix
Post by: man of stihl on August 26, 2012, 07:05:01 am
Thats good to know. thanks Scott.
Title: Re: hda carb fix
Post by: Cut4fun . on August 26, 2012, 10:20:59 am
Scott are we talking about the issues on the 357 and 359 carbs?   If so thanks for offering this up to the members.

I'm going to stick this thread in how to basics and make a sticky at top.
Title: Re: hda carb fix
Post by: scott kunz on August 26, 2012, 01:16:10 pm
yes 357/359
poor idle is the most common
i test them on my woods ports saw
Title: Re: hda carb fix
Post by: Al Smith on August 26, 2012, 03:15:50 pm
So am I missing something here? What is so special about this carb ? Would it be like those pain the butt Zama C1-Q models with the accellerater pumps they put on Stihl 200T's and caused fits all around the globe perhaps ?
Title: Re: hda carb fix
Post by: Cut4fun . on August 26, 2012, 03:52:48 pm
It's over my pay grade Al. Looking at IPL it looks like a acc pump in there.

http://wem.walbro.com/walbro/product2.asp?Series=HDA&partnum=HDA-199-1
Title: Re: hda carb fix
Post by: Al Smith on August 26, 2012, 07:36:59 pm
Yeah found it plus it looks like it has a governer .That kinda sucks .

Well I wondered because if I'm not mistaken I rebuilt one on a little J-Red once .Evidently then it's like the Zamas' using the same model designation but a different specific application or modification there of .Oh why do they do that -----because they can  :D
Title: Re: hda carb fix
Post by: scott kunz on August 27, 2012, 01:00:31 am
the acc pump is not the problem
it does not have a governer in it
the hda's perform better then the zama's, more so on a ported saw
the high speed nozzle goes bad in the zama's, and you can't buy a new on. you have to replace the carb. a real pitta if you drilled and bored it for a race saw.
Title: Re: hda carb fix
Post by: 660magnum on August 27, 2012, 08:35:58 am
I bought my 357 before knowing that the carb had an accelerator pump. Mine is a 2008 with the Walbro.

It was initially set too lean on the idle and when cold, would start to die out at idle. You could wiggle the trigger and it would pick up and go just like an old car before fuel injection. So I quickly decided it had an accelerator pump.This was particularly bad just up off idle. To tune the low speed without touching the throttle seemed to get away from this?

I do seem to need to check the high speed tuning before using if the season has changed since I last used it. Significant ambient air temperature changes seem to affect the high speed mixture. The stock engine is rather highly tuned and will four stroke at 14500 so I use a tachometer on this one to keep it calmed down when going into warmer weather from cold. 

My 357 seems to run just fine now but I've been suspicious of the carb since owning it from reading all the stuff on the Internet. Other than what's mentioned above, I cannot see any problem with it.

Title: Re: hda carb fix
Post by: Cut4fun . on August 05, 2013, 02:16:27 pm
Scott's  video on fixing them

http://www.youtube.com/watch?v=fBMIMoWw4B0
Title: Re: hda carb fix
Post by: jmester on August 06, 2013, 09:55:58 am
great video should help out a lot of people.
Title: Re: hda carb fix
Post by: sharkey on September 01, 2013, 10:17:40 am
Thanks Scott.
Title: Re: hda carb fix
Post by: Cut4fun . on June 02, 2014, 03:44:45 pm
Quote from: scott kunz 
if you use the 199 on a 346 or the like, then you need the hole in the cover
i've done hundreds of the 199 carbs and have not seen 1 bad acc pump. not saying it can't be or isn't a problem.
if the pump is stuck closed it blocks the low speed pasage.
to test it, remove the low needle and shoot carb cleaner in it, it should go into the carb. if you dought this then turn the throttle shaft to wide open and repete test.

scott
Title: Re: hda carb fix
Post by: super44 on June 03, 2014, 09:16:19 pm
I don't have one of these but sharing like this is the reason I come here!  Thanks ;)
Title: Re: walbro hda 199 carb fix
Post by: Cut4fun . on August 30, 2015, 11:03:48 am
I changed the heading to make it easier to find in a search. I spent 30 mins looking as I wasnt get hits on walbro 199 carb.
Title: Re: walbro hda 199 carb fix
Post by: Gypo Logger on March 13, 2016, 12:45:48 pm
Good info here. I need to dig thru my sparecarbs to see if I have a 199.
Thx
Title: Re: walbro hda 199 carb fix
Post by: Cut4fun . on March 13, 2016, 03:14:06 pm
Good info here. I need to dig thru my sparecarbs to see if I have a 199.
Thx

So how is John doing?  Good seeing ya posting up.

Any word on the new cabin build you been working on?
Title: Re: walbro hda 199 carb fix
Post by: Gypo Logger on April 03, 2016, 02:03:31 pm
House is coming along good, no plumbing yet. The running water is the water I gotta run and get. Lol
Title: Re: walbro hda 199 carb fix
Post by: Cut4fun . on February 17, 2019, 02:50:50 pm
@scott kunz  Big Thank you goes out to Scott

His video helped me trouble shoot and rebuild this 199 right for a 2159  non runner that came in.  Drilled the hole and tan check valve side.
Came in with blue and gaskets out of order on other side.

Title: Re: walbro hda 199 carb fix
Post by: Cut4fun . on November 13, 2019, 10:54:28 am
walbro hda 199 198 175 191 154 190 159 190 174 etc specs jets etc