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Briggs 18 1/2 hp v-twin model 42a707 type 1238-01 set valves

Posted by Anonymous on

4 Suggested Answers

6ya6ya
  • 2 Answers

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

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Posted on Jan 02, 2017

cmcduncand
  • 714 Answers

SOURCE: my Briggs 18 hp v-twin is starved for fuel. It

A more likely cause is a clogged jet in the carb.

Remove disassemble and clean Carb, the High speed idle jet is clogged.

If you had a fuel pump problem it would not run even in the Choke mode.

This tends to happen when an engine sets for long periods of time with out a fuel inhibitor id is even more likely to happen if you use fuel with ethanol.

Hope this tip helps.

r/David

Posted on Jan 23, 2010

  • 250 Answers

SOURCE: does a briggs 18 hp

Most likely yes. It will look like a car oil filter. It looks like a round can that is screwed to the engine.

Posted on Mar 17, 2011

  • 52 Answers

SOURCE: 18 hp twin 2 modle#

Typically it is dirty passages inside the carburetor. Basically fuel flow is slightly restricted so the carb is working outside of its normal calibration - the governor is not controlling well outside the normal calibration. This is most common after long winter of no use.
I use carburetor cleaner. I carefully disassemble things like the fuel bowl (preserving the gaskets) and spray cleaner down the jets, through every air passage etc. (there are small air bleed holes in the carb venturi). Wear eye protection because it will squirt back at you sometimes!
Mixture screws... Screw them all the way in, counting how many turns until they bottom out. Then screw them all the way out and remove them. Spray cleaner down there as well. Re-assemble screws by bottoming them out and backing out the number of turns you counted.
Never use drills or wires to clean out passages on a carburetor. Hard metals will wear on soft brass fittings. Carburetors are calibrated! Carb cleaner in a spray can is relatively safe.

It will run 100% better (and start better as well).

Next time use fuel stabilizer (I put it in every tank because I can never predict when the 'last' time I will use it will be).

Posted on Jul 12, 2011

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1 Answer

What is the compression lbs for a 18 hp brigg/stratton intek engine


Not sure where to get compression pounds for this, but let me refer you to the Briggs website for detailed product specs and power curves.
Intek can be twin or single sylinder.

For Twin....
http://www.briggsandstratton.com/us/en/engines/rider-mower-engines/intek-series-v-twin

For single....the are in 1/2 HP ratings but the link is below....
http://www.briggsandstratton.com/us/en/engines/rider-mower-engines/intek-with-xrd-single-cylinder

If further detail is required, I will need the model type and trim found on the valve cover.

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1 Answer

I have 18 h,p briggs and stratton very hard to crank


First check state of the battery under a load must have 12.5 or greater if battery is good check the valve setting the can cause an engine to be hard to start the valves should be approx 6mm

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1 Answer

My briggs and stratton 18 hp vanguard model 356447 will not start just back fires through the carb. I have good comprssion and spark at both plugs. I replaced the flywheel key as thought the backfireing...


check intake valves for proper seating. If the valves do not close completely it will allow the engine to backfire thru the carb. Another possibility is internal timing caused by the misalignment of the timing gears between the crankshaft and cam gears.

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1 Answer

18 hp twin 2 modle# 42a707 type 2238e1 rpm revs up & down


Typically it is dirty passages inside the carburetor. Basically fuel flow is slightly restricted so the carb is working outside of its normal calibration - the governor is not controlling well outside the normal calibration. This is most common after long winter of no use.
I use carburetor cleaner. I carefully disassemble things like the fuel bowl (preserving the gaskets) and spray cleaner down the jets, through every air passage etc. (there are small air bleed holes in the carb venturi). Wear eye protection because it will squirt back at you sometimes!
Mixture screws... Screw them all the way in, counting how many turns until they bottom out. Then screw them all the way out and remove them. Spray cleaner down there as well. Re-assemble screws by bottoming them out and backing out the number of turns you counted.
Never use drills or wires to clean out passages on a carburetor. Hard metals will wear on soft brass fittings. Carburetors are calibrated! Carb cleaner in a spray can is relatively safe.

It will run 100% better (and start better as well).

Next time use fuel stabilizer (I put it in every tank because I can never predict when the 'last' time I will use it will be).

Jul 12, 2011 | Briggs & Stratton Briggs Stratton Intek V...

1 Answer

I have a 18.5 Briggs Model #42A707. I am continuously breaking the starter sprocket. The last sprocket was a Briggs sprocket


If you are talking about the sprocket on the starter there is no cheap way to fix it that I know of. I've had the same problem on my 18 H.P. B&S motor on my craftsmen mower. The sprocket is a composit material and the flywheel is aluminum. I was replacing the sprocket about three times a year.I finally had a friend of mine who has a machine shop make me one out of aluminum and that fixed it.
I think this is just another case of planned obsolesence as a lot of people won't realize that the sprockket can be changed andwill buy a complete starter ***'y or take it to repair shop..
The only thing I can suggest is that you keep it tuned on a regular basis and not run the starter any longer then is absolutly needed.One other thing I have done for years on all my equipment is to run a small amount of Sea Foam in the gas at every fill.I use4-6 ounces and it really helps keep the motor clean and starting easier. Thankyou You can purchase sea foam at most auto parts stores and it can be used in the oil also. Good luck.

Mar 22, 2011 | Briggs & Stratton Briggs Stratton Intek V...

1 Answer

Does a briggs 18 hp twin 2 have a oil filter its a late 90's model mtd riding mower


Most likely yes. It will look like a car oil filter. It looks like a round can that is screwed to the engine.

Mar 17, 2011 | Briggs & Stratton Briggs Stratton Intek V...

1 Answer

18 hp vanguard 165lbs and 180 lbs compression have to hand turn engine past compression or starter wont turn engine over


if its hard to get the engine to turn past the compression release then pull your valve coversand try setting your valve lash
.006 on intake
.008 on exhaust

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1 Answer

I have a 23 hp Briggs vanguard engine-V Twin Model 380447/type 76-E1 code 4241. The engine is less than two mowing seasons. The engine will not turn over properly and I have used another start I have and...


It will probally be your valve setting might be off so pull the valve covers off and try setting your valve lash
Heres the factory settings
.006 on Intake
.008 on Exhaust

Sep 05, 2010 | Briggs & Stratton Briggs Stratton Vanguard...

1 Answer

Trying to find starter for 12.5 vangard v twin motor. my model number is 9108304 on starter but can't find anything the same.


anytime you deal with small engine parts you MUST be armed with the engine model number, code and type. on late briggs these are on one of the valve covers.

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2 Answers

Briggs & Stratton 18 hp v-twin engine surges while running.


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