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How do I reattach the throttle spring on my model 90000 , 300 series. 405 HP, 148 cc Briggs & Stratton lawn mower engine ? I would like a diagram please.

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6ya6ya
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Posted on Jan 02, 2017

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  • 48 Answers

SOURCE: lawn mower

i dont understand the pulling the button - do you mean push the primer button - if you mean primer button it sounds like the high speed jet in the carb is dirty and needs service- you can attempt to start and once engine fires have someone continually push primer to keep running it ma clear the blockage - did You check the fuel tank for any water ?

Posted on Oct 21, 2008

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SOURCE: My lawn mower briggs & stratton engine 650 series will not start

check the fly wheel and coil it may have rust on it if so sand it off

Posted on Jun 26, 2009

nobby63
  • 10 Answers

SOURCE: lawn mower stalls when engine is hot

first thing is to check that plug is not fowling up when hot due to motor burning to much oil.

Posted on Jul 26, 2009

mowerman1857
  • 389 Answers

SOURCE: Poulan lawn mower, Briggs Stratton engine, revving problem

Most likely problem is dirt?moisture in the carburetor float bowl. You would have to remove the bowl, clean it out and also clean the main jet up in the center of the carburetor. Another problem could be that the governor is out of adjustment but this is not something a novice could or should do

Posted on Sep 14, 2009

  • 4 Answers

SOURCE: Briggs & Stratton Quattro lawn mower

computerscot is right. This engine is not designed to run slower than a few hundred RPM below maximum. The carb has a built-in fuel pump that only operates properly at relatively high speed. Your motor probably has either missing or weak throttle springs which will lower the RPM. Replace them and adjust the tension so that the speed is up. For a diagram of the carb and springs, check the Briggs & Stratton online user manual maintenence section. Look for file "briggsandstrattonMS5373-GB.pdf".

Posted on Oct 30, 2009

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1 Answer

Need a throttle linkage diagram for a briggs & stratton engine model 9S502 type 0620-B1


David, This is what I found in google search for B&S carb. linkage diagram, you can also do a search because there are lots more.
Check the attached links,instruction and guides, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
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1 Answer

The spring fell off the throttle and I dont know how it is supposed to be reattached


Go to any Briggs and Stratton dealer and they will print you off a schematic to show you where and how it attaches.

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How do I remove the carburetor of a Briggs & Stratton model 287707?


remove the air cleaner assembly,then unscrew the 2 threaded bolts, should be 8mm head visable once air cleaner removed. disconnect fuel pipe,choke and throttle linkeges and backlash spring

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My Briggs and Stratton 300 148 cc lawn mower surges up and down while running. Seems to run best when almost out fuel


You most likely have a partially clogged carb (main jet) and it isn't allowing enough fuel for the engine to run smoothly. This is fairly common. The carb needs to come off, get disassembled, and cleaned paying close attention to the small opening in the main jet.

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1 Answer

I have a Briggs & Stratton Sprint 3.75 hp lawnmower and it seems the cord is pulled almost all the way out and won't retract. How will i know if it is broken? or should I be able to wind it back up...


You should be able to Fix this yourself if your a fair garage tinkering mechanic. However...I need the engine and type number off of the engine to get you parts information. The spring is broken in your recoil. It is a matter of removing the air shroud, taking off the pulley / spool and changing the spring.
http://www.ehow.com/video_2328977_how-install-lawn-mower-starter.html

and how to tension the spring:
http://www.ehow.com/video_2328961_how-tension-lawn-mower-starter.html

There are 2 different types of springs used so having your engine model / type number is important so that you can get the right spring. One of the 2 part numbers is: 390066

Thanks for choosing FixYa,
Kelly

May 22, 2011 | Briggs & Stratton Briggs Stratton...

1 Answer

Briggs and stratton 35 classic. Need piccy of arrangement of carb/choke links and springs as think someone has changed them and mower no work. Model 9D902. Lever which may be choke, does not stay in place...


check youtube,guy on there has pics of spring set up,and still pics to follow the video.
check this name on youtube:4 HP Briggs & Stratton Quatro Motor Spring & Linkage Close Up Detail

Apr 25, 2011 | Briggs & Stratton Briggs Stratton...

1 Answer

Hello, I am using the Craftsman 675 Brigs & Station 190 cc lawnmower, and I'm trying to turn up the throttle. It apparently does not have a throttle adjuster, and I was wondering if there is any way...


After researching the engine application, I see that this 675 is NOT an OHV engine. It appears it is the L (flathead) engine with the standard features. The 775-875 Platinum series mowers have OHV engine applications. That being said, many mowers have the carburetors with the governed throttles set to run at the the OEM mandated maximum speed. Some (like the Briggs Quantum series engines) have the throttle plate still attatched. You would need to bend it back up and install an aftermarket throttle cable assembley (like Murray makes). You would connect the carburetor end of the throttle cable to the hole in the plate assembly that has the governor spring attatched. Some even remove the governor entirely (internal governor has to stay in) and connect a throttle cable on the plate controlling the butterfly in the carb. Your unit may have this feature with the plate having a few different holes in it in which you could install the end of an add on throttle cable.

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Want a repair manual for a 17 hp briggs & stratton engine


A range of strip-down manuals for all Briggs & Stratton engines is avalable - I got mine from Amazon, but you can get them directly from Briggs & Stratton via their web site. They have a look-up system by model series, which ensures you end up with the manual that covers your engine.

Oct 01, 2009 | Garden

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