Question about Troy-Bilt 4-Cycle Curve Shaft Gas String Trimmer #41ADT41C966

Open Question

Motor has compression good gas, oil, new spark plug, less than 1 season ans won't start

Posted by on


5 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

  • 2702 Answers

SOURCE: tb415cs,not getting spark.

it may just be the switch playing up on you give it a good swilling with WD40 if that dont work look at the spark plug coile

Posted on Oct 30, 2009

  • 1 Answer

SOURCE: Troybilt self-propelled mower - model 556 won't start

pipe from carb to engine broken. couldn't tell until covers & fuel tank removed. also part of deck holding engine came apart on mine. due to excessive vibration???

Posted on Mar 16, 2010

  • 332 Answers

SOURCE: Can't start my Troy Built Tuffy tiller

First pull your spark plug out reconnect to the plug wire and ground tot he engine body
Pull the starter cord and see if you have a good clean spark that goes to the electrode and not to the side of the spark plug.
If no spark check your off/on switch

Posted on Mar 31, 2010

  • 1545 Answers

SOURCE: I put new spark plug

Your mower has to have these things all working in unison to start 1. Compression (the engine has to be in good shape) 2. Clean Air (Check Air Filter) 3. Clean,fresh constant fuel supply (Maybe remove bowl of carburetor and clean/check for debris and/or water). 4.Strong Spark (Remove Plug and ground the body against the engine. Pull starter and check for nice, blue spark.
Sometimes, the problem is as simple as the brass bolt that holds the bowl on the bottom of the carburetor is clogged and needs cleaning. That's because this dual purpose bolt is ALSO the main jet. So if you remove it to clean the float bowl, clean the bolt as well. Use no metal objects on it at all. There are small holes in bottom and along the sides that get gummed up when fuel dries.
Carb/Choke areosol spray cleaner will clean the bolt. Remember, don't scrape it up.
Check all these things. To maybe "coax" the engine to run, remove the spark plug and spray a couple of shots of carb cleaner into the engine. Immediately choke it and pull start.
Some OHV lawn mowers are difficult to start because the overhead valves need adjusting periodically. The Briggs and Stratton website have instructions and specifications for doing this. It is not real complicated and allows for easier starting and much better running. Post back if needed.

Posted on Jun 05, 2011

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

2 Answers

Have A Honda ES6500, under 100 compression but leak down test was ok. Will not start. New gas plugs and new carb?

Is there a spark at the plug?
Is there good induction and fuel reaching the combustion chamber?
Is the choke, strangler or cold start working?

An engine needs compression, timing, the right amount of fuel a good spark and a decent cranking speed in order to start.

A side valve easy start engine is likely to have a low compression pressure as would an ohv engine designed to run on poor fuel. Other types of engine with low compression but a good cylinder leakage results probably has a dry or fuel-washed bore and adding a little oil into the cylinder can improve matters.

Feb 11, 2018 | Honda Motorcycles

1 Answer

Why won't my 1998 Polaris indy 500 start? It is getting fuel and has spark.

Along with fuel and need enough spark and you need enough compression. Asssuming your rings aren't broken and you can feel good compression when you are turning it over, you can spray a little ether in the carburetor chamber. If there is enough spark and compression it will at least fire up momentarily.
Sometimes the rings or cylinders get scratched up because they run incorrect gas/oil ratios for too long and then when they sit for a while the oxidation fills in those scratched surfaces. Starting with high fuel to oil ratios is easier to start ( gas burns easier with less oil in it) but the engine will wear faster with high ratios.

But if the engine won't start under pure ether, then the spark is real weak or out of time, and/or the compression is shot. Good compression makes heat and concentrates the air and fuel together. If the compression even falls from 10:1 to 8:1, that is enough to cool the charge from about 150F down to about 90F or so and you won't get ignition

Feb 23, 2015 | Winter Sports

1 Answer


Misfires are caused by one of 3 things-gas, spark, or compression-one of those is the problem. For gas, check the fuel pressure and see if it is at the right pressure for your car. Low fuel pressure will cause misfires. If pressure is good, it could still be an injector problem, like a clogged injector. If low pressure, suspect the fuel pump or the fuel filter.
For an ignition spark problem, check your spark plugs. Pull them out and inspect them for broken or cracked plugs, check the spark plug gap, check for oil fouled plugs. You may be able to isolate the misfire to a cylinder or two by the plugs condition. A misfiring plug or cylinder should show more black, sooty deposits than the other plugs. A normal firing plug will have a tan or brown colored insulator on the end with very little deposits. If the plugs are okay, clean them a bit if needed, and check for spark on the spark plug wire ends with engine cranking. Buy an inexpensive spark tester, or hold each spark plug wire metal end terminal 1/4 inch from a ground on the engine block, while cranking the engine. Wear a heavy glove to avoid getting shocked. Check that every cylinder is getting a strong blue spark to eliminate ignition as a problem. A weak, yellow or orange spark is an ignition problem, possibly a bad coil, or other ignition part.

If spark and gas is good, you may need to check engine compression. Any cylinder that has significantly lower compression than the other cylinders will cause a misfire, and set a misfire code. You should check for any trouble codes in the engine computer. A code reader or scanner would have to be connected to the diagnostic connector under the dash. What is "significantly lower" compression? About 15-20% less compression. Say you checked and had 150 psi compression in most cylinders. If one had 20% lower compression ( 150 X 20%= 30 psi, 150 -30 =120 psi, or same as saying 150 X 80%= 120 psi.), a condition like that can cause a misfire. I hope I have made sense here. Good luck, and post back what you find, or if any questions.

Apr 10, 2014 | 1998 Ford Windstar

2 Answers

Won't start has not been started in five years, has new gas,new oil and new spark plug

The carburator may be empty. Open it and fill it with fuel before starting.
Other way is to get a starter spray, open the input collector or where it is possible and spray while starting.

May 31, 2010 | Coleman Powermate Powermate 5000W...

1 Answer

My model TB46599, less than 1 year old, has no

Absolutely. What sometimes happens is that carbon will build up on the cylinder head. Then when you try and start it you get a mini backfire and it knocks the carbon loose. The carbon get mashed under one of the valves and then you end up with no compression.

Here are a couple of things you can do to try and loosen it up. (Mind you that you will have to change oil after this and probably need a new spark plug.)

1. In a well ventilated area... preferrably outside and off the grass or any vegitation area, remove the spark plug and turn the engine until the piston is all the way to the top. (TURN OFF THE FUEL SELECTOR)
2. Then dump about 3 cap fulls of oit into the cylinder head via spark plug hole. (Cap from 1 qt small mouth oil bottle)
3. Pull starter cord slowly 2 times.
4. Fill the cylinder all the way to the top of the cylinder head / spark plug hole. Keep it full for about 10 minutes. Add more gas if you have to. The goal here is to soak the overhead valve seat with raw gas for a bit.
5. After 10 minutes... YANK the starter cord with ign off knowing full well your going to make a mess.
6. Add Fresh gas to cyl head (not full this time) and YANK the cord again.
7. Keep pulling cord until vapor / gas cloud stops exiting spark plug hole.
8. Install spark plug and check compression.
Good compression... Good deal.. CHANGE THE OIL because it leaked past the pistions rings during the soaking process.

Still no compression the head will have to be removed and the vavle seats hand lapped with grinding compound.

NOTE: Before turning on the ignition switch... and attempting an engine start make sure that the unit is not soaked in gas i.e do a good clean up job.

Safety First!

Thanks for using FixYa.

Apr 02, 2010 | Troy-Bilt 4-Cycle Curve Shaft Gas String...

2 Answers

Poulan wild thing leaf blower won`t start. Has


Sep 30, 2009 | Poulan/Weed Eater #Wt200 711724 24cc Gas...

2 Answers

YZ125 won't start

yeah something you wanna check next, compression. if you can get your hands on a compression tester.

Aug 09, 2009 | Yamaha YZ 125 Motorcycles

2 Answers

Dieying of the bike

Check the compression, I dont know what the manufacture calls for the gas oil mixture ,but that sounds too lean..

Jun 10, 2009 | 2008 KTM 250 SX

Not finding what you are looking for?
Troy-Bilt 4-Cycle Curve Shaft Gas String Trimmer #41ADT41C966 Logo

Related Topics:

181 people viewed this question

Ask a Question

Usually answered in minutes!

Top Troy Garden Experts

Jim Parker
Jim Parker

Level 3 Expert

1041 Answers

Matt Olenzek
Matt Olenzek

Level 2 Expert

297 Answers


Level 3 Expert

2931 Answers

Are you a Troy Garden Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides