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Non starter when pulling to start to much compression can not pull it ,

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SOURCE: Why is my Tecumseh 6.5 hp engine hard to start after taking blade off.?

When you tilt the mower too much oil will mix with gas. Try taking out the spark plug and cleaning it good in case some oil got on it. If this don't solve it, drain the gas and refill with fresh gas in case oil mixed with it when you tilted the mower.

Posted on Aug 04, 2012

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Pull Cord Stops...

could be valve needs set. if it isn't opening at the right time it wont release compression for it to start. it may be the shear key in the flywheel has sheared if you have hit something like a big rock or log or something causing it to die suddenly.

May 17, 2016 | Craftsman Garden

2 Answers

I have a inteck briggs motor on a snapper 30inch mower it has a battery start and a pull rope start it has startd with 2 pulls as the battery is over a year old thts why i have been using the pull start....

test the battery
if it is under 12v as normal change it; 10v is one dead cell. 8v is two dead cells etc.
if it is not able to hold a charge the engine wont start even with the pull start due to electronics not firing at under 12v
that is probably why it starts with the charger hitting it with 14-18v

Oct 10, 2013 | Garden

1 Answer

Starter cord won't pull all the way to start engine. Engine 300 series 4.50 Lawn mower

Remove spark plug pull cord. This will release compression blow out cylinder. Replace spark plug try cord.

Aug 03, 2013 | Garden

1 Answer

Swisher 60" pull behind mower with 14.5 briggs engine. good spark and the starter will crank just fine. If I prime the carb with a little gas it will start imediately but wont continue. Any ideas..

Hi Andy, the carby will need to be removed and all jets cleaned out with compressed air. Basically its not getting enough fuel through the carby to keep running. Regards Phil.

Nov 28, 2012 | Swisher T14560 T - 60" Trailmower with 14...

1 Answer

Toro zero turn mower does not want to start

i think that engine has a compression release arm on the camshaft f its not releasing it will be hard to crank over

Sep 27, 2012 | Toro Power Lawn Mower

1 Answer

My toro lawn mozer will not start. I have replaced the spark plug, it has gas and oil in it, but it still will not start. What other things can I check myself without having to take it in?

You can check compression,either with a gauge or by spinning the flywheel counter clockwise,if it rebounds sharply then the compression is good. By this I mean just pull the rope slowly and let go,if it sucks up kinda fast you are good.
Check the gap in the new plug.Should be 0.25
Have some one else pull the starter rope and watch for spark coming from the plug wire,if you see that replace the plug wire.
\Check the fuel filters,one in the tank and one in line.Also you can take the carb apart and clean it.Check the air filter.Inspect the fuel line for breaks,or if it came apart somewhere.

Jun 11, 2011 | Toro Power Lawn Mower

2 Answers

What makes the mower hard to pull at start

Don't take my word for the hard pull start , but you probably should have a mechanic dissemble
the pull start assembly. I am only guessing it needs to be cleaned and lubricated.

Jun 11, 2011 | Cub Cadet Garden

1 Answer

It wont start. does it have a compression valve

They have an Automatic Compression Release but not a compression valve as such. All the ACR is for is to make it iasier to spin at low RPM's as when pulling the rope or using the electric starter and as soon as the engine reaches approximately 300 rpm's it automatically releases itself. It is inside the engine and not accessible from the outside.

Sep 25, 2009 | Troy Garden

2 Answers

Engine is jammed. pull cord won't give. briggs and straton gas generator 5500 watts No product category listed.

Before you start ordering parts, take out the spark plug and try to pull the cord; If it comes out and turns the engine the cylinder was full of some type of fluid that can't compress(probably came flying out of plug hole). If it still won't budge then take the shroud(piece that has starter on it) off,usally two bolts at both ends, and try to pull the cord now that it is off the engine. If it spins, check and see if you can turn the engine by hand. If the cord comes out and in like it should then you need to take it to someone who can work on it to fix the engine, if it does not work then you know that You need a new starter.

Aug 19, 2009 | Garden

1 Answer

Suddenly no compression on Toro walk behind

yes the shear pin will throw the timing off.check it anyway it might be ok but then again you ever know.check for fire coil should be at 010.from frywheel it might slip check compresstion anyway with gauge then valve gap need manual for this if ohv check pushrods this could make bad compresstion if one is bent.let me know want you find out ok

Jul 24, 2009 | Garden

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