How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask Rick Your Own Question

Rick
Rick, Small Engine Technician
Category: Small Engine
Satisfied Customers: 3844
Experience:  Outdoor Power Equipment technical trainer since 1990, covering eight states.
20444326
Type Your Small Engine Question Here...
Rick is online now

My Briggs and Stratton Classic mower runs at a slow speed,

Customer Question

My Briggs and Stratton Classic mower runs at a slow speed, it also is sometimes difficult to start. I have changed the fuel and cleaned the air filter. Any Ideas thanks Mick.
Submitted: 3 years ago.
Category: Small Engine
Expert:  Curtis B. replied 3 years ago.
Model number? Example(NNN) NNN-NNNNB1. Do you have throttle cable or does it run set speed? If it has throttle cable, have you checked the linkage at the carburetor , to be sure the throttle is going fully open? How about a choke cable? Auto choke or manual choke? Have you replaced the spark plug? Is there fuel filter between fuel tank and carburetor?
Customer: replied 3 years ago.

Model number R484TR or 31033, it does not have a throttle. I have changed the spark plug. The motor speed is governed by a cam attached to plastic lever via a couple of springs. I will check the fuel filter on carburetor. It does not have a choke but a button which you press three times. I hope this helps, regards Mick.


 

Expert:  Curtis B. replied 3 years ago.

Need the actual engine model. example(NNN) NNN-NNNNB1. It has one. So you have a primer unit, is primer pushing gas when you pump it? That would cause hard starting. To get it to run faster rpm, the spring tension has to be increased, or the bracket for spring has to be bent. Here is a Briggs pulse/prime carburetor site. Look at the first two shown.http://outdoorpowerinfo.com/repairs/briggs_stratton_carburetor_cleaning_repair.asp

What Customers are Saying:

 
 
 
  • You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future. Jimmy
< Previous | Next >
  • You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future. Jimmy
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C.
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C.
 
 
 

Meet The Experts:

 
 
 
  • Jon K.

    Jon K.

    Small engine diagnostic expert

    Satisfied Customers:

    2823
    Gold certified Stihl tech, Service Manager for a rental/repair shop.Certified in most small engines
< Last | Next >
  • http://ww2.justanswer.com/uploads/jonrk/2010-1-5_22551_jon.jpg Jon K.'s Avatar

    Jon K.

    Small engine diagnostic expert

    Satisfied Customers:

    2823
    Gold certified Stihl tech, Service Manager for a rental/repair shop.Certified in most small engines
  • http://ww2.justanswer.com/uploads/KO/koboma/2012-6-6_20917_DSCF1022.64x64.JPG Curtis B.'s Avatar

    Curtis B.

    Technician

    Satisfied Customers:

    161
    Service manager and technician for all brands of engines with 40 + years of experience.
  • http://ww2.justanswer.com/uploads/HA/HankF/2013-8-27_12514_JAProfilepic.64x64.JPG Hank F.'s Avatar

    Hank F.

    Technician

    Satisfied Customers:

    5359
    Certified on Onan and Generac generators.
  • http://ww2.justanswer.com/uploads/RA/ranwell1/2013-5-23_17421_2fixed3.5x5.64x64.jpg ranwell1's Avatar

    ranwell1

    Small Engine Technician

    Satisfied Customers:

    5039
    Owner of Large Small engine repair business. Over 39 years. Certified both 2-cycle and 4-cycle engines
  • http://ww2.justanswer.com/uploads/SP/spankyjr1/2014-1-16_16395_Leha002.64x64.jpg spankyjr1's Avatar

    spankyjr1

    Small Engine Technician

    Satisfied Customers:

    19
    Journeyman TechnicianWorked on small to large engines for 30 yearsGas,LP,Diesel
  • http://ww2.justanswer.com/uploads/PL/Plumberpro/2014-6-23_6520_image.64x64.jpg Plumberpro's Avatar

    Plumberpro

    Plumber

    Satisfied Customers:

    40
    Fully qualified plumbing , heating and gas engineer 20 years experience
 
 
 

Related Small Engine Questions