Chainsaw Repair

Husqvarna - Stihl - Poulan - Jonsered - Dolmar chainsaws and more => Husqvarna => Topic started by: Cat-Face Timber on January 21, 2015, 10:09:43 pm

Title: 272XP and 288XP same carb?
Post by: Cat-Face Timber on January 21, 2015, 10:09:43 pm

So if a 272XP and a 288XP have the same carb, does that mean that my 272XP is getting as much gas a the 288XP?
Or am I overthinking this?

Title: Re: 272XP and 288XP same carb?
Post by: srcarr52 on January 21, 2015, 10:26:26 pm

Over thinking things.

Title: Re: 272XP and 288XP same carb?
Post by: 660magnum on January 21, 2015, 11:09:08 pm

There's not as much air traveling through the 272 carb

Title: Re: 272XP and 288XP same carb?
Post by: Cat-Face Timber on January 22, 2015, 12:11:18 pm

I tend to over think EVERYTHING..

Title: Re: 272XP and 288XP same carb?
Post by: Eccentric on January 22, 2015, 03:24:03 pm

They're the same basic model (Tillotson HS)..............but definitely not the same carb.

Title: Re: 272XP and 288XP same carb?
Post by: man of stihl on January 22, 2015, 04:17:09 pm

Quote from: Eccentric on January 22, 2015, 03:24:03 pm

They're the same basic model (Tillotson HS)..............but definitely not the same carb.

Correct. Throttle linkage is different for one.

Title: Re: 272XP and 288XP same carb?
Post by: farmboy on January 22, 2015, 04:54:17 pm

Quote from: srcarr52 on January 21, 2015, 10:26:26 pm

Over thinking things.

Yep!  Throttle linkage is totally different on 288.
Shep

Title: Re: 272XP and 288XP same carb?
Post by: Cat-Face Timber on January 22, 2015, 05:30:05 pm

Same model, but not same carb?

Title: Re: 272XP and 288XP same carb?
Post by: 660magnum on January 22, 2015, 05:41:06 pm

Same series but different model number?

Title: Re: 272XP and 288XP same carb?
Post by: man of stihl on January 22, 2015, 06:30:09 pm

They are the HS Series.
272 = HS254A and HS254B
          HS260A

288= HS228A and HS228B

I'm sure there are others.
         

Title: Re: 272XP and 288XP same carb?
Post by: Cat-Face Timber on January 22, 2015, 06:33:08 pm

Thanks for the info :)

I used the same carb kit for both..

Title: Re: 272XP and 288XP same carb?
Post by: Eccentric on January 22, 2015, 09:11:45 pm

RK-23HS is the correct kit for both.  The individual carbs can have different throttle arm setups, different choke setups, different throttle bore and venturi measurments, different metering orifices inside the carbs, different metering lever springs, different HS check valves, etc.....

Title: Re: 272XP and 288XP same carb?
Post by: dynodave on January 23, 2015, 11:26:04 am

Quote from: man of stihl on January 22, 2015, 06:30:09 pm

They are the HS Series.
272 = HS254A and HS254B
          HS260A

288= HS228A and HS228B

I'm sure there are others.
         

These carbs 260 and 228 I looked up are 17.5mm venturi

http://www.tillotson.ie/docs/HSPartsList.pdf (http://www.tillotson.ie/docs/HSPartsList.pdf)