How do i clean valves on my 8hp briggs engine?
Q. How do i clean valves on my 8hp briggs engine?
Asked by dom - Fri Mar 13 16:27:43 2009 - - 3 Answers - 0 Comments

A. Start mixing a valve cleaner in with your fuel. You can get it at any auto parts store. Remember that it's formulated for a car's tank size so use only a fraction with each tank. Use premium gas only. It will take a while but it will slowly burn the crud off the valves.
Answered by Eddie P - Fri Mar 13 17:09:05 2009

Can I add compression to a small horizontal 8hp briggs?
Q. So I started taking apart this old (but hardly used) generator engine today when I realized that the crank lost some of its "kick-back". Did I lose compression in the engine? And if I did, how can I get it back? This is a learning project I've undertaken and I don't want to give up on the motor just yet.
Asked by David G - Sat Dec 29 01:15:58 2007 - - 2 Answers - 0 Comments

A. Those motors are tough as can be... you should not have to worry about it not turning over as hard anymore and even if it lost a little compression, I bet it has many many more hours on it. If you want more compression you could: - replace the piston with a slightly domed one. - Maching the head down a few thousanths of an inch. -Replace the piston rings and hone the cylinder smooth and scratchless. If oyu raise the compession you might need to run higher octane fuel to prevent pre-ignition and engien damage. I think your best bet is to keep that motor stock for best reliability.
Answered by iamthebadboydamnit - Sat Dec 29 01:29:29 2007

Problem with an 8HP Briggs and Stratton Engine?
Q. Our riding lawn mower has been out of service for a few years. I recently took apart the engine and found the head gasket was broken and pieces were missing, so i assumed this was the problem. I replaced the head gasket, spark plug, changed the oil. When i try to start it, it wont turn over than it gets a winding out noise without the enging turning. And then it starts rapidly clicking. Could this be a starter issue? Any Ideas?
Asked by blueyedwakeboarder - Mon Apr 28 12:11:07 2008 - - 4 Answers - 0 Comments

A. Sounds like a low battery.. You can use jumper cables directly to the starter if your careful. Or to the weak battery. Also check the pinion gear on top of the starter, they are plastic and get worn. They are easy to replace and cost about $5.00
Answered by renpen - Mon Apr 28 12:19:03 2008

I have a 8HP Briggs and Stratton engine on a generator. Less than 5 hrs use. Gas is filling up the crankcase.?
Q. The generator runs fine under full load until the gas/oil mix starts to come back through the breather port into the carb, then it sputters. The float and needle valve in the carb looks good, how is the gas getting into the base?
Asked by NFLD - Sat Jan 17 17:08:43 2009 - - 5 Answers - 0 Comments

A. Its hard to believe the thing runs well under full load when there are issues in the carb. I have seen fuel in the crankcase, but this is normally caused by the tank fuel valve left open when not in use. I would drain the oil completely and fill with fresh oil. Start the generator and load to full load, use an amp-probe to verify your not overloading. With a voltmeter verify voltage. With a frequency meter verify engine speed is producing a frequency between 60 to 62.5 hz. If machine is running too fast it could possibly cause this problem. If all else fails try a new carb, depending on your particular model carbs can cost as low as 30 dollars to as high as 150 dollars.
Answered by Power Pro - Sun Jan 18 12:34:41 2009

how much should the compression be on a 8hp, 15hp, and 5hp briggs and stratton engine?
Q. i have a compression tester but i dont know how much compression my engines should have
Asked by charlie c - Sun Jun 15 19:59:35 2008 - - 2 Answers - 0 Comments

A. Okay, These engines likely has a little compression release thing on the cam shaft that doesn't allow then to have full compression until the engine is spinning faster. Don't worry about compression, worry about leaks. Hook your air compressor up to the spark plug hole at top dead center. You may need to block the flywheel from turning. Turn the air on and get an extra piece of hose. Put one end of the hose to your ear and the other to the intake. If you hear air here you have a leaky intake valve, now listen to the exhaust pipe. Air flow here is a bad exhaust valve. You can also listen around the head for a leaky head gasket.
Answered by ruhtah6 - Sun Jun 15 23:32:27 2008

I have an 8hp Briggs and Stratton Motor which blows a large puff of blue smoke when started then its OK?
Q. A few seconds after startup there is no more smoke and the motor runs great. I know this means Im getting oil on my piston but I can't see how. the motor has good compresson its not overfull with oil. Hope someone can help please.
Asked by pecky - Sat May 6 02:22:31 2006 - - 5 Answers - 0 Comments

A. It sounds like you take care of your mower. Have you inspected your air filter and spark plug?
Answered by NEWBEE1 - Sat May 6 02:29:37 2006

8hp 1978 Briggs and Stratton engine troubleshoot?
Q. I have an 8hp briggs on a snowblower. It has a flo jet carb. I have put a rebuild kit into the carb. There is some play in the throttle shaft (may be bushings or shaft have not gone that far). It floods easy which I understand is common. If I put the choke on full, and hold the throttle shaft forward it will start (little coaxing), once it starts it runs smooth as silk, throttles up and down. I thought I would have solved the problem with the carb rebuild but it still does not run. If there is someone with an idea of how to further trouble shoot this it would make me really happy. Thanks
Asked by Kelli O - Thu Nov 19 19:46:05 2009 - - 2 Answers - 0 Comments
what is the setting on the points on a briggs and stratton 8hp motor?
Q. what is the setting on the points on a briggs and stratton 8hp motor?
Asked by lowvane - Wed Sep 26 07:40:30 2007 - - 1 Answers - 0 Comments

A. .020" should work ok. I forget if it's Briggs or Tecumseh that has the aluminum cover over the points which is also designed with a little tab for setting the points.
Answered by doane_nut - Wed Sep 26 07:46:26 2007

How do I take out a briggs crankshaft?
Q. I need to remove the crankshaft from a 8hp briggs engine so that my friend can add a keyway for me (the engine was made for a generator - no clutch). I can't find anything online so far, and I'm afraid that if I start hacking away I'll compromise the engine's integrity somehow. Any tips would be appreciated.
Asked by David G - Fri Dec 28 14:05:39 2007 - - 5 Answers - 0 Comments

A. First, you will need to remove the engine shroud with the pull rope attached and remove the flywheel. You will need a puller to get the flywheel off. Then, if you look at the output side of the engine, you should be able to see where the crankcase separates. Remove the screws that hold the crankcase together and split the crankcase (of course remember to drain the oil first.) You can use a couple of screwdrivers to separate the case, keeping in mind that it is probably aluminum and will scratch easily. You will have to file the scratches at reassembly. Now you should be able to see the connecting rod for the piston. Mark the bearing cap (which holds the rod on from the bottom) so you know it goes back in the same way. Then remove… [cont.]
Answered by roadrocker2000 - Fri Dec 28 14:24:01 2007

8HP briggs vs 8HP tecumseh?
Q. im building a racing mower and wanted to know what you guys like better, or which one has more power
Asked by Shelton E - Mon Feb 16 14:10:51 2009 - - 3 Answers - 0 Comments

A. more parts available for the briggs, both have the same power
Answered by bayareart1 - Mon Feb 16 15:55:39 2009

small engine (briggs and stratton) help?
Q. when i turn the flywheel counterclockwise i get a spark but when i turn it clockwise i dont get a spark. the problem is that the engine is supposed to spin clockwise. does anyone know what the problem is? its a 7/8hp briggs and stratton motor. more info at:
Asked by ChearLeader - Sun Jul 26 20:27:31 2009 - - 3 Answers - 0 Comments

A. ok chear i'll give you a probability thats that the brushes are worn badly and when you reverse the spinning the brusshes are dragging enough to spark. this is the only possible answer to me
Answered by CARL G H - Sun Jul 26 20:37:54 2009

Throttle install on an old briggs and stratton 8 hp?
Q. I have an old (1977 i believe) 8hp briggs and stratton engine on my Snapper mower. The engine seems to run fine but the trouble is the linkage from the throttle to the carb and governor (i believe is what it is) has came disconnected. I am not sure how to hook it back up, the spring and all. I am not much on fixing motors all though I am trying to learn, and also I am not stupid but it does not make sense to me by looking at it. Not sure if anyone can help without a pic bought thought I would try. I have been searching the internes with no luck. Thanks
Asked by stickmanstewy - Mon Apr 13 08:51:05 2009 - - 3 Answers - 0 Comments
Do I need lead substitute for an old Briggs and Stratton Engine?
Q. I parked my dad's old 1971 Homelite Beast of a Snowblower with 8hp Briggs and Stratton in the barn back in 1993. My nephew and I drug it out last month. We aired the tires, changed the oil, cleaned the carb, and put in new points & condenser. We set the choke, one pull and can you believe it? It took right off just the way it did when dad brought it home 38 years ago! Seriously, this thing runs really strong just like new. Only thing, all fuel was leaded in 1971. I am wondering if we should be using a lead additive? Maybe just burn premium?
Asked by Johnny D - Sun Nov 1 18:28:16 2009 - - 9 Answers - 0 Comments

A. Try it without the lead substitute and see how it runs. Plenty of old cars around that were built in the leaded gas era run fine with unleaded gas.
Answered by Troy - Sun Nov 1 18:54:57 2009

Riding lawn mower will start but if I put it in drive or take it out of idle it will die any ideas?
Q. I have a IH cub cadet 282 with a Briggs and Stratton 8hp motor. I rode it around for a little and it ran great, then it ran out of gas so i filled it up then this happened. I can start it but if i put it in drive, reverse, or increase the speed it will die, any ideas?
Asked by Rocky - Mon Aug 10 18:27:25 2009 - - 1 Answers - 0 Comments

A. these things have all kind of safety switches now,, so if any of these goes bad or is activated it will die.. there is one under the seat and if you get up it will kill the engine,, there is one on the lever that you use to get the pulleys to the blades started,, etc etc,, all these need to be working right...
Answered by fuzzykjun - Mon Aug 10 19:34:21 2009

What is the best thing to use to remove spray paint from a small engine on a go kart?
Q. I have a Briggs & Stratton L-Head 8HP engine that I am putting on a go kart, and the paint on it is really bad looking, what is the best solvent/liquid to remove paint on something like this?
Asked by LWC Football 06 - Sat May 13 21:31:49 2006 - - 7 Answers - 0 Comments

A. spray paint remover, it comes in a can like spray paint
Answered by MrKnowItAll - Sat May 13 21:33:24 2006

how much should i sell a gocart for?
Q. its a 1 seater... straight frame... 8hp briggs and stratton... runs... a little rusty... all it needs is a clutch... and new tire... i was wondering about how much i should ask for it...
Asked by coolclown2000 - Tue Apr 1 07:06:50 2008 - - 3 Answers - 0 Comments
stronger rod for 8 hp Briggs & Stratton?
Q. I've been looking for a stronger rod for my 8hp B&S horizontal shaft so i can can run higher rpm without it breaking. if anybody could refer me to a website or information it would be much appreciated.
Asked by James M - Mon May 4 17:01:54 2009 - - 1 Answers - 0 Comments

A. i think if you have the ohv engine there might be a company that makes one but i don't remember for sure. you can try www.apskarting.com they have some billet machined rods and such for some briggs. you might try searching all over google too. whichever engine you have flat head or ohv you can usually run some decent rpm provided you have excellent oil and no internal damage. the ohv briggs 8 hp floats the valves way before the rod is ready to go. unless you modded the valve springs i wouldn't even bother. shouldn't go above about 4000 rpm with stock parts no matter what. use good oil though like 30 weight heavy duty made for engines like that. i use synthetics.
Answered by adiabaticfire - Tue May 5 22:19:51 2009

Older Snapper riding mower - any good ?
Q. Question for people with lots of riding mower knowledge/experience - I just was given an old red Snapper rear engine riding mower model 30085S with 8hp Briggs motor, electric start, looks like maybe about a 30" cut, not sure. I don't know what year this is. Can anyone tell me some things about these riding mowers- Are they good, reliable, junky? Quirks, things to watch out, go wrong? Are they better or worse than say a Murray (MTD) or Craftsman front-engine riding mower? How reliable are these little snappers? Any idea what year this might have been made based on 8hp and model 30085S? (SN is 53070437). One odd thing - the oil filler cap is just that, a cap only. Where/how do you "measure" the oil fill level - how can you tell if you need… [cont.]
Asked by rjp3526 - Sat Jun 6 09:18:14 2009 - - 2 Answers - 0 Comments

A. go to www.snapper.com/manuals and you can print or download manuals parts list and other info free.that old it hard to say if it's worth repairing without seeing it.but craftsman and mtd cannot compare to a snapper.it is a 30" deck 30085s 5s is the 5 series .the oil cap is where you check oil level it should only be a 1/4 to 1/2 below the cap up in the tube.briggs & stratton is a good motor.hope this helps.
Answered by Discover More - Mon Jun 8 20:56:54 2009

Why wont my lawn mower start?
Q. I have an 8hp briggs and stratton engine that was put on to a craftsman 20hp v-twin mower after the engine blew. At first it would start almost everytime, until the battery started to die, and i started to charge the 6 volt battery with a 12v charger. It would work almost every time, unitl today and the starter wont turn at all. I do need a new battery, but even when i try to jump the starter it will not turn. I think it is the solonoid because it makes this pop noise in it, but can anyone else help me?
Asked by pwobig92 - Sun May 18 19:43:40 2008 - - 1 Answers - 0 Comments

A. The solenoid is supposed to make a "clicking" noise when it is activated. It sounds like the starter is seized or burned up. If you "jump started" a six volt system with twelve volts very many times you can probably plan on a new battery, starter and solenoid.
Answered by Hondu - Mon May 19 08:42:23 2008

What kind of battery???
Q. hi, i have a 1974 Briggs & Stratton 8hp lawntractor. click the link below to watch the video of it.. by the way im 14 so thats why my voice in the video sound kinda weird... WHat SIZE battery does it use??? i now a 12volt.. but what SIZE of battery... my dad wants to know so that we can buy one... And where can we buy one.. im thinking walmart or autozone... i saw good ones at walmart. i dont have the old battery!!
Asked by Nick P. - Fri Aug 1 21:27:07 2008 - - 2 Answers - 0 Comments

A. You just take the old battery and measure it. Any lead acid battery that fits will work.
Answered by Nomadd - Fri Aug 1 21:33:56 2008

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