Tillotson identification

[md1486]

can someone tell me which model is this carb? Usually I see HS163 or HS224 on the 266xp, but not on this one. I search for the S26QA1 on internet but found nothing. I wanna buy a carb kit. Thank,

 

[HarleyT]

https://www.amazon.com/HS-260-Tillotson-Carburetor-Husqvarna-H-268/dp/B012HFQAHW

 

[md1486]

Thanks

 

[HarleyT]

Yeah, the guy that stamps the "H" was not very good at his job...

 

[md1486]

But why do I have a third hole on the L-H side ?

 

[HarleyT]

Likely some other HS carbs have an optional feature, and the basic body has room for all possible variations.

Here is a manual..

https://tillotson.ie/wp-content/uploads/2015/07/techinfo_hs_us.pdf

 

[RC Cole]

But why do I have a third hole on the L-H side ?

View attachment 794590 View attachment 794591

the HS 147D on my Farmsaw has the same thing

 

[md1486]

So with the HS260 carb kit I should be ok ? I dont have to bother with this third hole ?

 

[HarleyT]

I am sure that it isn't drilled through. Clean it and look.

 

[Screwbolts]

But why do I have a third hole on the L-H side ?

View attachment 794590 View attachment 794591

That 3rd spot/sometimes hole, very rarely 3rd needle, is refereed to as an Idle Needle, on the HS series of carbs that have all three needles. the HS is simply the size of the carb body, the numbers and letters after the "S" are a code that tells the story of the features of that particular version of the HS series.

 

[SteveO-La]

My Husky 268xp has same carb with three holes, one is blank. If you ever remove the idle adjuster screw from carb, there is a tiny plastic ball that is a PITA to order.

 

[Screwbolts]

OP, if you were to do a very simple search engine search, via your brouser, you would easily find that there were several HS carb models/versions used on a Husky 268XP. The Internet can be a very good education tool.

MANUFACTURED BY:

HUSQVARNA VAPENFABRIKS AB

HUSKVARNA, SWEDEN
SERIES OR ASSEMBLY NUMBER:

YEAR INTRODUCED:

1987
YEAR DISCONTINUED:

1997
ENGINE DISPLACEMENT:

67 cc (4.1 cu. in.)

Piston ported
MANUFACTURER ADVERTISED H.P.:

4.7 (3.5 kW)
CARBURETOR:

Tillotson HS-134A, 234A, B, 260 series
MAJOR REPAIR KIT:

RK-23HS

 

[md1486]

OP, if you were to do a very simple search engine search, via your brouser, you would easily find that there were several HS carb models/versions used on a Husky 268XP. The Internet can be a very good education tool.

MANUFACTURED BY:

HUSQVARNA VAPENFABRIKS AB

HUSKVARNA, SWEDEN
SERIES OR ASSEMBLY NUMBER:

YEAR INTRODUCED:

1987
YEAR DISCONTINUED:

1997
ENGINE DISPLACEMENT:

67 cc (4.1 cu. in.)

Piston ported
MANUFACTURER ADVERTISED H.P.:

4.7 (3.5 kW)
CARBURETOR:

Tillotson HS-134A, 234A, B, 260 series
MAJOR REPAIR KIT:

RK-23HS

Did you see my 1st pic ? Usually this is really clear on the carb HS or HK xxx whatever.
On this one there's no "H" and the zero look like a Q.

 

[Screwbolts]

Yes i did. As I understand Tillotson carbs molels of diaphragm construction all start with the letter "H" therefore they leave it off many times. Seems very self evident. HU, HS, HR, HD and I am sure I missed some.

 

[HarleyT]

Did you see my 1st pic ? Usually this is really clear on the carb HS or HK xxx whatever.
On this one there's no "H" and the zero look like a Q.

I see messed up stamping on Tillotson all of the time.

 

[md1486]

Well i guess yours experiences with tillotson carbs (and carbs in general) is greater than mine. Thanks guys

 

[Okie]

From experience when inspecting and cleaning/kitting carbs, especially small carbs is too carefully look for what appears to be extra holes in the carb. Usually if you see such a welch plug is gone/gone.

I've bought even new small carbs that were new in the box and a small welch plug would be missing.

Also using excessive high air pressure will send a welch plug into orbit and you will not notice such immediately.

I sometimes wrap a carb in screen door/window wire if I need to use air pressure to try and clear a clogged up carb. the screen wire will catch any small parts that might be dislodged.

 

[HarleyT]

Here is one on e-bay.

 

[HarleyT]

Another......

 

[HarleyT]

One more....