Question about Tecumseh Lawn Boy Push Mowers Insight Silver Powered Series - Sens - A - Speed Walk Behind Mower - 10685

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4.75 hp 2 cycle lawnboy smoking by the blade then

4.75 hp 2 cycle lawnboy smoking by the blade then stops running

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Posted on Jan 02, 2017

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SOURCE: what is the 2 cycle oil to gas mixture for a 2 cycle lawnboy

20:1 gas to oil is a good place to start. Some mowers thin down to 80:1. If you can tell me the model of the mower I can be more specific, but starting at 20:1 will assure you have adequate protection for the engine. If it's exhausting lots of oil smoke after it has warmed up; you can cut back a little each time until you have minor oil smoke.

at 20:1 you need to add 6.4 ounces of oil to one gallon of gas.

Here's a nifty calculator for various ratios:

http://www.csgnetwork.com/oilfuelcalc.html

Enter 1 gallon of gas, then change the ratio number and then press calculate and the number of ounces per gallon will be displayed.

Posted on Mar 29, 2009

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SOURCE: I would push the prime button 3 or 4 times it starts then quiet

I took my carburetor off and blew it out with compressed air. Runs great now. Make sure to get all of it. Little screw on bottom has a hole in it too!

Posted on May 11, 2009

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2 Answers

How do l fix an outboard motor that runs fine for about 5 minutes at full throttle and then abruptly stops and will not start until it sits for awhile?


Check that the priming bulb is fitted with the arrow pointing in the directions of flow to the engine. Make sure the vent is open on the fuel tank. Check all fuel lines for kinks or blockage. If none of that fixes it, you need a marine engineer to check the fuel pump and carbs.

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Mercury 1989 60 HP Outboard Motor manual to find gas to oil ratio


50:1 But if your doing mostly low rpm cruising (trolling) then you could reduce that a bit to 75:1 to help reduce smoke. If you do mostly mid to higher rpm cruising, then 50:1 (1 pint to 6 gallons. )
Or 200mls in 20 liters if your Canadian.

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1 Answer

Rj19lm plug gap for a 195cc 4cyl lawnboy


As a starting point in my shop i always use 0.30 in. For all my mowers

Oct 11, 2014 | Lawn-Boy lawnboy" Mower Blade 21"

4 Answers

My lawnboy 10304 runs about one minute and shuts down. Any ideas?


It sounds like it is 2 stroke.
Carefully remove the carb bowl, by undoing the brass bolt.
Examine the brass bolt for a small pin-hole in the side.
Use a piece of corn-broom NEVER anything else !!! and poke the hole(S) to make sure they are clear.
Blow out with air if available.
You can use this method to clean out all the carb orifices carefully.

Hope it helps,

Andy.

Jun 15, 2009 | Tecumseh Lawn Boy Push Mowers Insight...

1 Answer

Lawnboy F series Engine - how to remove PLATE AND COLLAR ASM


shaft is tapered plate just slides up on shaft, tap with hammer several times if want break loose,sometimes moisture has rusted it or excess heat has swelled it on tight, i had to take a drimel tool will cutting disk to remove mine,then clean up shaft with file or sandpaper to smooth,little grease an new collar ready for blade.

Apr 12, 2009 | Garden

1 Answer

What is the 2 cycle oil to gas mixture for a 2 cycle lawnboy


20:1 gas to oil is a good place to start. Some mowers thin down to 80:1. If you can tell me the model of the mower I can be more specific, but starting at 20:1 will assure you have adequate protection for the engine. If it's exhausting lots of oil smoke after it has warmed up; you can cut back a little each time until you have minor oil smoke.

at 20:1 you need to add 6.4 ounces of oil to one gallon of gas.

Here's a nifty calculator for various ratios:

http://www.csgnetwork.com/oilfuelcalc.html

Enter 1 gallon of gas, then change the ratio number and then press calculate and the number of ounces per gallon will be displayed.

Mar 29, 2009 | Tecumseh Lawn Boy Push Mowers Insight...

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