Small Engine

Small Engine Troubleshooting Problems? Ask a Mechanic Now.

Ask an Expert,
Get an Answer ASAP!

Small Engine

Model P3816 will not start.

Customer Question
Model P3816 will not start.
Submitted: 2 years ago.Category: Small Engine
Ask Your Own Small Engine Question
Answered in 2 hours by:
7/17/2015
Technician: Vince O., Small Engine Technician replied 2 years ago
Vince O.
Vince O., Small Engine Technician
Category: Small Engine
Satisfied Customers: 2,861
Experience: Over 30 years experience repairing lawn and garden equipment. Chainsaws, mowers,blowers and trimmers
Verified
Hello, did it sit with gas in it or a long time? If you remove the air filter and squirt carb cleaner into the carb will it fire?
Ask Your Own Small Engine Question
Customer reply replied 2 years ago
I've tried everything you suggested but engine will still not start. Seems like engine will not "flood" even if gas bulb is pressed many times. Could the spark plug be defective?
Technician: Vince O., Small Engine Technician replied 2 years ago
The compression could be low. If you have a compression gauge it should have 120 psi.If no gauge remove the top cover and the the muffler to have a look inside/ Look for scoring or a stuck ring.
Ask Your Own Small Engine Question
Customer reply replied 2 years ago
I cannot check the compression.
Technician: Vince O., Small Engine Technician replied 2 years ago
Remove the spark plug and muffler,shine a light inside and look for scoring on the piston and cylinder.
Ask Your Own Small Engine Question
Customer reply replied 2 years ago
I could not see any scoring or marks on the cylinder walls or piston head surface. I have tried putting a drop of gasoline into the cylinder and into the carburetor with no luck. I removed the spark plug but kept it hooked up and could see a spark at the gap when starter cord was pulled. I think there is compression in the cylinder. When I push the bulb many times to get gas into the cylinder there doesn't seem to be gas in the cylinder? Could there be some type of blockage in the fuel lines leading into the engine? Do I need to make screw type adjustments at the places on the engine?
Technician: Vince O., Small Engine Technician replied 2 years ago
Drain the fuel and make sure the filter is still connected to the fuel line.The fuel lines rot and break.
Ask Your Own Small Engine Question
Customer reply replied 2 years ago
In the gas tank the filter cartridge is connected to the fuel line. From the appearance of the filter cartridge it may be clogged which would not allow gas into the engine. I will try to clean the cartridge in gasoline or other solvent you might suggest. Protruding down about one-half inch from the top of the tank is a small diameter plastic tube connected to a plastic nipple - is this supposed to look this way?
Technician: Vince O., Small Engine Technician replied 2 years ago
Yes,the hose with the plastic nipple is the primer return line.Did you check for spark?
Ask Your Own Small Engine Question
Customer reply replied 2 years ago
There is "spark" at the spark plug gap when the starter cord is pulled. The gap is set at the recommended 025.
Technician: Vince O., Small Engine Technician replied 2 years ago
Are the 2 fuel lines connected to the primer? Are they on correct if you did have them off? The primer return line goes to the longer nipple on the primer.
Ask Your Own Small Engine Question
Technician: Vince O., Small Engine Technician replied 2 years ago
The only thing left is to check the compression. If it's lower than 120 psi it needs torn apart to check.
Ask Your Own Small Engine Question
Customer reply replied 2 years ago
I did not remove the two fuel lines which a connected to the push bulb. I'm beginning to think that the problem is the lack of a tight fit of the piston (rings ?) in the cylinder. In other words the cylinder is not filling with air-fuel mixture under pressure. If this is the case then I would have to take the saw to a repair shop which we do have nearby. I do not have a pressure gauge to connect to the engine, but a repair shop would have such a gauge.
Technician: Vince O., Small Engine Technician replied 2 years ago
Yes they would but they may have a minimum charge to check it out so I would ask them first.
Ask Your Own Small Engine Question
Customer reply replied 2 years ago
The nipple end of the filter cartridge (inside the gas tank) is connected to a small diameter plastic tube (about1-2 mm). This plastic tube is inside a larger diameter tube (about3-4 mm) which appears to be the "gas line" to the engine. Why is it necessary to have a gas line tube inside another gas line tube? Anyway, the small diameter line appears to be partially mashed closed which would impede the flow of gas to the engine. As I mentioned before, the engine does not seem to be getting gas. I may have to buy a new complete gas line. There is a Poulan repair shop about ten miles from my home and I will check with them. I think I did mention that the spark plug is getting a "spark".
Technician: Vince O., Small Engine Technician replied 2 years ago
Someone tried to repair a broken or rotted fuel line. There is a fuel line kit you can get from Poulan Dealer or www.searspartsdirect.com. When you remove the air filter is there a wide yellow fuel line?http://www.searspartsdirect.com/part-number/580727101/0071/358.html?utm_source=google&utm_medium=cse&utm_term=580727101&sid=SPDxGPROD&gclid=CMe2x--V-8YCFUeRHwod_1cFyw
Ask Your Own Small Engine Question
Ask Vince O. Your Own Question
Vince O.
Vince O.
Vince O., Small Engine Technician
Category: Small Engine
Satisfied Customers: 2,861
2,861 Satisfied Customers
Experience: Over 30 years experience repairing lawn and garden equipment. Chainsaws, mowers,blowers and trimmers

Vince O. is online now

A new question is answered every 9 seconds

How JustAnswer works:

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

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.

JimmyBagley, 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!!!!

AlexLos 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.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, 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.

EstherWoodstock, 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.

RobinElkton, Maryland

< Previous | Next >

Meet the Experts:

Curtis B.

Curtis B.

Technician

14,377 satisfied customers

have worked on and around most engine models for 35 yrs./Polaris ATV expert

Rick

Rick

Factory Authorized Trainer

4,218 satisfied customers

Outdoor Power Equipment technical trainer since 1990, covering eight states.

Jon K.

Jon K.

Small Engine Diagnostic Expert

2,995 satisfied customers

Gold certified Stihl tech, Service Manager for a rental/repair shop.Certified in most small engines

James W

James W

Small Engine Troubleshooting Expert

2,986 satisfied customers

7 years as Mechanic & Parts Manager for Brother who has Owned Lawn & Garden Repair shop for 35 years

Vince O.

Vince O.

Small Engine Technician

2,861 satisfied customers

Over 30 years experience repairing lawn and garden equipment. Chainsaws, mowers,blowers and trimmers

RUSS

RUSS

SERVICE TECHNICIAN

1,723 satisfied customers

28 YEAR SERVICE TECHNICIAN

Wayne

Wayne

Engine Rebuilder

1,607 satisfied customers

many years on egine rebuilding, lawn mower,roto tiller,Truck,and small engines

< Previous | Next >

Related Small Engine Questions
Engine 375 gap to flywheel. 10years ihad removed the coil
10years ihad removed the coil for cleaning and did not take a measurement of the gap … read more
Donald
Donald
Owner / Technician
High School
2,231 satisfied customers
I have a generac generator and I accidentally added
hi I have a generac generator and I accidentally added 4cylinder small engine oil (briggs and stratton) … read more
Hank F.
Hank F.
Service Technician
High School or GED
5,363 satisfied customers
How do I replace the track on my Cub Cadet 3x30 420 cc snow
How do I replace the track on my Cub Cadet 3x30 420 cc snow blower … read more
Curtis B.
Curtis B.
Technician
Associate Degree
14,377 satisfied customers
I have a lt1000 craftsman tractor with a 17hp kohler motor
I have a lt1000 craftsman tractor with a 17hp kohler motor that I replaced the fuel filter on and now it is low on power, starts fine and runs, but when I put it in gear and engage the mower or snow b… read more
Curtis B.
Curtis B.
Technician
Associate Degree
14,377 satisfied customers
Someone asked the same question I'm asking but I did not see
Hi Pearl. Someone asked the same question I'm asking but I did not see an answer. I've got to fix my snowblower because the auger gear case is busted. Where can I get a repair manual for a Troy-Bilt s… read more
Vince O.
Vince O.
Small Engine Technician
2,861 satisfied customers
I am baffeled I got a model 221lhp and I it down in my truck
I am baffeled I got a model 221lhp and I laid it down in my truck and now I can not get the starting rope to move and the electric wont turn the motor … read more
JON
JON
Master Service Tech
MASTER SERVICE TECHNICIAN
1,508 satisfied customers
My 7KW went to start in its weekly test mode. Didn't
My 7KW went to start in its weekly test mode. Didn't crank...showed RPM Sensor Loss...what do I look for or replace … read more
Hank F.
Hank F.
Service Technician
High School or GED
5,363 satisfied customers
Dremmel for pets 3.0v DC I do not have the charger anymore
Dremmel for pets 3.0v DC I do not have the charger anymore Is there any other way to charger it. Do headphone jacks work ? Can I only use D.C. Power? I have a 5v and pretty much ever charger but this … read more
Wayne
Wayne
Engine Rebuilder
Vocational, Technical or Trade Scho
1,607 satisfied customers
I am having a problem with my Rialta generator seems it
I am having a problem with my Rialta generator seems it doesn't get power all the time … read more
don
don
fleet superintendent
Vocational, Technical or Trade Scho
12 satisfied customers
Cant get my freedom z sfz48-600fs to start. It makes a click
cant get my scag freedom z sfz48-600fs to start. It makes a click and wont turn over, first thought the battery was dead. Put on charger and its good … read more
Wayne
Wayne
Engine Rebuilder
Vocational, Technical or Trade Scho
1,607 satisfied customers
My Lawn Boy snow blower will start up but won't hold a
My Lawn Boy snow blower will start up but won't hold a constant idle. It revves up, then dies down, eventually stalling. I've had the carburetor cleaned and spark plug changed, but it still won't stay… read more
Curtis B.
Curtis B.
Technician
Associate Degree
14,377 satisfied customers
My 2007 16kw model general generator will not switch off
my 2007 16kw model general generator will not switch off after power is restored … read more
Hank F.
Hank F.
Service Technician
High School or GED
5,363 satisfied customers
My powersmart snow blower auger won't spin .. belts are good
Hi my powersmart snow blower auger won't spin .. belts are good and pins are good … read more
Curtis B.
Curtis B.
Technician
Associate Degree
14,377 satisfied customers
MY Troy Bilt is 8 HP 24" My neighbor used it and put it in
My neighbor used it and put it in my garage. When I attempted to use it, it was "locked" in a forward gear and the ignition was on. I forced it into first gear, used starting fluid and press the ruber choke 8 times. The gear shift is difficult to move. I can not get it to start or do anything I am used to doing. Your help will be aoppreciated … read more
Curtis B.
Curtis B.
Technician
Associate Degree
14,377 satisfied customers
I have A 30 inch snowblower model 536.881114, looking for a
I have A 30 inch snowblower model###-##-#### looking for a manual plus battery location or connection to electric start. … read more
Wayne
Wayne
Engine Rebuilder
Vocational, Technical or Trade Scho
1,607 satisfied customers
Hank, I have followed this thread and performed the step you
Hi Hank, I have followed this thread and performed the step you have suggested and I still get an under voltage alarm the model of my generator is 58731 and the serial is(###) ###-#### Wonder if you h… read more
Hank F.
Hank F.
Service Technician
High School or GED
5,363 satisfied customers
I have 318 starts and run fine for 10 or 15 min then shuts
I have 318 starts and run fine for 10 or 15 min then shuts off no spark. wait 10 or 15 min then it will start and run fine for the same time. … read more
Donald
Donald
Owner / Technician
High School
2,231 satisfied customers
I have a watchdog generator that has a 7.5 amp fuse and a 15
I have a watchdog generator that has a 7.5 amp fuse and a 15 amp fuse on the control panel. the 7.5 amp fuse blows when I try to start the generator. can you suggest what I can do… read more
Wayne
Wayne
Engine Rebuilder
Vocational, Technical or Trade Scho
1,607 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x