carburetor

gbsk · 10-27-2009, 01:28 AM

I have a Briggs and Stratton 3.5 HP motor. I push the primer bulb and it does not seem to have much resistance as it used to as it pushes back out very quickly. I have been told the carburetor needs to be cleaned out. I started to take it off and took 5 Phillips head screws loosened to the base but it is still not loose and seem to be mounted by a "pipe" to the engine. I do not want to pull anything too hard. How do I fix this? How do I get the carburetor off?

Thanks

gbsk · 10-27-2009, 01:40 AM

Forgot to say that this is a mower and it won't start.

**Basementgeek** · 10-27-2009, 09:03 AM

Hi and welcome to TSF

We need the complete model number off the engine.

BG

**K-B** · 10-27-2009, 01:49 PM

Hi,
You will need to first remove the 2 or 3 (can't remember exactly) bolts that hold the tank & carb assembly to the engine. Once you have the tank & carb separated from the carb, you can then remove the carburetor from the tank.

Also, I would recommend you pick up a new diaphragm & gasket to use before you put everything back together. It's just asking for trouble to re-use the diaphragm.

gbsk · 10-28-2009, 05:19 AM

Thanks for answering guys. Where exactly can I find the model #? The plate over the flywheel said 20" 3.5 HP. I did not see the bolts that hold the tank & carb assembly to the engine. As I said I loosened Phillips head screws above the gas tank. but hwat needs o come off to take the carburetor off? I appreciate your help.

Thanks

**Basementgeek** · 10-28-2009, 06:06 AM

This should help you find the model number:

http://www.briggsandstratton.com/mai...eltypecode.pdf

BG

gbsk · 10-28-2009, 03:25 PM

BG

That link realy helped. Here is the data.
Model 95902
Type 3107 01
Code 93031605
Thanks

**K-B** · 10-29-2009, 04:18 AM

One bolt is on the top right side of the tank (when facing the tank). The other one is on the top, middle of the tank, towards the engine.

10-27-2009, 01:28 AM	#1 (permalink)
gbsk Registered User Join Date: Oct 2004 Posts: 4 OS: xp	carburetor I have a Briggs and Stratton 3.5 HP motor. I push the primer bulb and it does not seem to have much resistance as it used to as it pushes back out very quickly. I have been told the carburetor needs to be cleaned out. I started to take it off and took 5 Phillips head screws loosened to the base but it is still not loose and seem to be mounted by a "pipe" to the engine. I do not want to pull anything too hard. How do I fix this? How do I get the carburetor off? Thanks

10-27-2009, 01:40 AM	#2 (permalink)
gbsk Registered User Join Date: Oct 2004 Posts: 4 OS: xp	Re: carburetor Forgot to say that this is a mower and it won't start.

10-27-2009, 09:03 AM	#3 (permalink)
Basementgeek Moderator, Home Support Join Date: Feb 2005 Location: Central Ohio, USA Posts: 1,457 OS: XP Pro SP2/Vista Ultimate SP2 Blog Entries: 3	Re: carburetor Hi and welcome to TSF We need the complete model number off the engine. BG __________________ Donating to the forum keeps TSF free for all. Proud member of ASAP

10-27-2009, 01:49 PM	#4 (permalink)
K-B Moderator, Linux Join Date: Oct 2005 Location: NY Posts: 2,873 OS: Vista, Ubuntu My System	Re: carburetor Hi, You will need to first remove the 2 or 3 (can't remember exactly) bolts that hold the tank & carb assembly to the engine. Once you have the tank & carb separated from the carb, you can then remove the carburetor from the tank. Also, I would recommend you pick up a new diaphragm & gasket to use before you put everything back together. It's just asking for trouble to re-use the diaphragm. __________________

10-28-2009, 05:19 AM	#5 (permalink)
gbsk Registered User Join Date: Oct 2004 Posts: 4 OS: xp	Re: carburetor Thanks for answering guys. Where exactly can I find the model #? The plate over the flywheel said 20" 3.5 HP. I did not see the bolts that hold the tank & carb assembly to the engine. As I said I loosened Phillips head screws above the gas tank. but hwat needs o come off to take the carburetor off? I appreciate your help. Thanks

10-28-2009, 06:06 AM	#6 (permalink)
Basementgeek Moderator, Home Support Join Date: Feb 2005 Location: Central Ohio, USA Posts: 1,457 OS: XP Pro SP2/Vista Ultimate SP2 Blog Entries: 3	Re: carburetor This should help you find the model number: http://www.briggsandstratton.com/mai...eltypecode.pdf BG __________________ Donating to the forum keeps TSF free for all. Proud member of ASAP

10-28-2009, 03:25 PM	#7 (permalink)
gbsk Registered User Join Date: Oct 2004 Posts: 4 OS: xp	Re: carburetor BG That link realy helped. Here is the data. Model 95902 Type 3107 01 Code 93031605 Thanks

10-29-2009, 04:18 AM	#8 (permalink)
K-B Moderator, Linux Join Date: Oct 2005 Location: NY Posts: 2,873 OS: Vista, Ubuntu My System	Re: carburetor One bolt is on the top right side of the tank (when facing the tank). The other one is on the top, middle of the tank, towards the engine. __________________