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 J.R. Your Own Question

J.R.
J.R., Small Engine Technician
Category: Small Engine
Satisfied Customers: 7444
Experience:  Owner of outdoor power equipment business, repairing all makes and models.
13636126
Type Your Small Engine Question Here...
J.R. is online now
A new question is answered every 9 seconds

I have a Qualcast Suffolk Punch 35DL petrol engine which refuses

Customer Question

I have a Qualcast Suffolk Punch 35DL petrol engine which refuses to run. It starts with no trouble but cuts out after just a few seconds. I can keep it going for a few seconds more by tickling the primer or closing the choke but it still cuts out. I have cleaned the carb jets but it makes no difference. Can you help?
John
Submitted: 4 years ago.
Category: Small Engine
Expert:  J.R. replied 4 years ago.
Have you checked to make sure you still have spark when it quits? Have you tried to run it with the gas cap off? What are the model numbers off of the engine?
Customer: replied 4 years ago.

Hi,

In answer to your questions, the engine number is XXXXX It was very hard to read and the F could be a 5.

I have tried with the petrol cap off but it makes no difference.

I know it is firing on start-up because it runs for a couple of seconds but how do I find out if it is still firing when the engine dies?

There is one fine jet which is recessed into the body which I can't unscrew and can't get any air through. I'm wondering if this is blocked or it is too fine to be able to tell if air is getting through. If push comes to shove and it is to do with the carb, do you know where I can get a replacement, new or second hand?

Best regards,

John

Expert:  J.R. replied 4 years ago.
Those do not look like good engine numbers. Who is the engine made by?
Customer: replied 4 years ago.

I've had a quick look and can't see a makers name without taking the shielding off. I'll have a better look tomorrow.

Regards,

John

Expert:  J.R. replied 4 years ago.
Let me know.
Customer: replied 4 years ago.

Hi,

Sorry for the delay in answering your question. My Sky router decided to crash and I have had to wait for a replacement.

 

I have looked everywhere for a name but the only thing I can see is MCD1 or it could be MCDI in small raised lettering.

 

I have managed to keep the engine running for about 8 -10 seconds by closing the choke fully but without that it only runs for a couple of seconds. It will then only start if I prime the carb fully until petrol runs out of the overflow. It will run for a couple of seconds then cut out. Prime again and so on. If I don't do this it won't start at all.

Best regards,

John

Expert:  J.R. replied 4 years ago.

That sounds like a plugged

up jet in the carburetor.

J.R., Small Engine Technician
Category: Small Engine
Satisfied Customers: 7444
Experience: Owner of outdoor power equipment business, repairing all makes and models.
J.R. and 3 other Small Engine Specialists are ready to help you
Customer: replied 4 years ago.

Yes, there is one reccessed jet that I can't get out and can't seem to get any air through. Do you know any tricks of the trade to unblock jets or any chemical that will disolve the gunk or failing that do you know any company that deals in lawnmower carbs, new or second hand.

Regards,

John

Expert:  J.R. replied 4 years ago.
Can you take a picture of the carb?
Customer: replied 4 years ago.

Hi,

Thanks for your help. It was a blocked jet. It took a long time to get it unblocked but it is now running.

Thanks again,

John

Expert:  J.R. replied 4 years ago.
Thank you.

JustAnswer in the News:

 
 
 
Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
 
 
 

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 Bagley, IA
< Last | 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 Bagley, IA
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
  • 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 Los Angeles, CA
  • 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 Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, NC
  • 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 Woodstock, NY
  • Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know. Robin Elkton, Maryland
 
 
 

Meet The Experts:

 
 
 
  • Curtis B.

    Technician

    Satisfied Customers:

    6989
    have worked on and around most engine models for 35 yrs./Polaris ATV expert
< Last | Next >
  • http://ww2.justanswer.com/uploads/KO/koboma/2012-6-6_20917_DSCF1022.64x64.JPG Curtis B.'s Avatar

    Curtis B.

    Technician

    Satisfied Customers:

    6989
    have worked on and around most engine models for 35 yrs./Polaris ATV expert
  • http://ww2.justanswer.com/uploads/SM/SmEngPro/2012-8-5_3564_Rick1206290005Edit.fullres.logo.scrn.64x64.jpg Rick's Avatar

    Rick

    Factory Authorized Trainer

    Satisfied Customers:

    4126
    Outdoor Power Equipment technical trainer since 1990, covering eight states.
  • http://ww2.justanswer.com/uploads/GI/giftindex/2011-11-19_2715_JamesLWells500.64x64.jpg James W's Avatar

    James W

    Small Engine Troubleshooting Expert

    Satisfied Customers:

    2978
    7 years as Mechanic & Parts Manager for Brother who has Owned Lawn & Garden Repair shop for 35 years
  • http://ww2.justanswer.com/uploads/jonrk/2010-1-5_22551_jon.jpg Jon K.'s Avatar

    Jon K.

    Small Engine Diagnostic Expert

    Satisfied Customers:

    2950
    Gold certified Stihl tech, Service Manager for a rental/repair shop.Certified in most small engines
  • http://ww2.justanswer.com/uploads/MR/mr2cycle/2011-3-12_03458_sears.64x64.jpg Vince O.'s Avatar

    Vince O.

    Small Engine Technician

    Satisfied Customers:

    2374
    Over 30 years experience repairing lawn and garden equipment. Chainsaws, mowers,blowers and trimmers
  • http://ww2.justanswer.com/uploads/rheisnger/2010-12-31_010856_41385_100001225699183_7012_q.jpg RUSS's Avatar

    RUSS

    SERVICE TECHNICIAN

    Satisfied Customers:

    1723
    28 YEAR SERVICE TECHNICIAN
  • http://ww2.justanswer.com/uploads/BriggsEngines/2010-02-26_230200_n1834842973_4823.jpg CJBennett's Avatar

    CJBennett

    Small Engine Technician

    Satisfied Customers:

    623
    Briggs and Stratton Master Service Tech, Kohler, Tecumseh, Kawasaki certified. 18 years exp.