Briggs & stratton 2Hp with a few mods

[shoprat17]

it will run without the shroud for quite awhile, i often would do it if i had a govenor that wasnt working right until i fixed it

[ratbike2000]

that thing runs like shit

[twostrokeornill1]

As a kid, I hooked up this strobe device onto my 2hp brigs which read actual rpm's and it spun to 6750 rpms. I'll never forget it. Even 25 years later.

[honeybunchickens]

Lol  WTF

[SuperKONR]

is that an automotive coil you're using?

[kiarra00IsAwesome]

Three people fail at life. That is freaking awesome!!!! Must have a shitload of power with that coil!

[mudpuppy4life]

how did you put a msd coil on there???.....im a small engine tech my self and that has my wheels turning so fuckin bad lol

[camarolover1982]

howd u rig up that coil?

[7yearoldRCF]

hahah flywheel almost destoyed hi foot

[Camunderscorezero]

Hey, ive got a kawasaki engine with a broken coil, it has points but they aren't like briggs and stratton points, they work the opposite way, always having contact then separating when needed to spark, does that mean you have to reverse the wiring? thanks.

[lukeyj15]

i've got a feeling that the tacometer doesn't work because it was designed for a 4 or 6 cylinder car, so running it on a 1 cylinder engine will show 1/4 or 1/6 of the engine speed

[emmx85]

wow your dumb... never run a small engine w/out the shroud... it will overheat

[kiarra00]

@emmx85 Calling me dumb is just childish, just shows who is really the dumb one.

And I think I know a bit more about smallengines than you do, I have over 50 Briggs engines, and I've had over 100, and I have never overheated one! It won't overheat in the cold weater it was running in, under no load and only for a short time

[emmx85]

@kiarra00 wow calm your shit dude i was just pointing out something

[kiarra00]

@emmx85 you dont' have to call me dumb when pointing out something!

[XXziomeqXX]

@kiarra00 Can you show how you put a coil on it?? I have(maybe) the same 2hp Briggs, but it has no spark. (Sorry for my english. I'm Polish)

[seasonedtoker]

@kiarra00 so how come you have 50 of them but you don't know that ALU flywheels aren't meant to be run without the load (e.g. blade or some balast)? clever kid, I must say. you probably think that those kickbacks are just a design feature :D

[kiarra00]

@seasonedtoker Why do you say I dont' know that the engines with alu flywheel needs the blade to run properly?, of course I know this, why are you saying I don't? Clever kid I must say!

[mrprofile101]

@kiarra00 best argument ever!

[motorboy171]

@mrprofile101 yeah

[angrygunsmith]

@kiarra00 so without that 1kg blade on the other end you can cause some engine damage right, well would that mean if i were to put a clutch on the propshaft connected to the back wheel of my bike, would that act as a load, would this mean that when the clutch isnt activated i am causing engine damage?

[kiarra00]

@angrygunsmith You won't cause engine damage if you remove the blade from an engine with a lightweight flywheel, but it won't run properly on idle and it will kick back when you're starting it. The weight of a clutch and wheel might help a little, but not much. If you're engine is a horizontal shaft it has a heavy flywheel and you won't need to worry about it.

[angrygunsmith]

@kiarra00 its a vertical shaft that im converting into horizontal, which brings me to ask, do i need to change the orientation of just the carb, or the carb and the intake port aswell? the intake port is aN S shapeed kinda thing, Also i started my engine without the exhaust yesterday and it was idling really high, infact pushing the throttle owuldnt make a difference, will putting the exhaust back on make it run as normal or is there soemthin else wroong?

[kiarra00]

@angrygunsmith The carb needs to be the right way, it doesen't matter what way the intake is. It's not a good idea to run you're engine without the exhaust, it will burn the exhaust valve if you run it to long. It probably revved up because of different backpressure, and it will most likely run normal when you put the exhaust back on. Also if you're converting it you need to use an oil slinger from a horizontal engine, orelse it might sieze up.

[angrygunsmith]

@kiarra00 i forgot to mention that it is a two stroke engine, so theres no exhaust valve to speak of, or oil slinger. but otherwise you say that the carb is important not so much the port???? if i can move the port though should I?

[kiarra00]

@angrygunsmith If it's a 2 stroke you just need to turn the carb, so it's the right way. You shouldn't run the 2 stroke without exhaust, it can sieze up because the piston will get very hot.

[angrygunsmith]

@kiarra00 ok cool, the exhaust is gonna be a bit of a bitch coz its one of those old push in clip mufflers and thats turned to shit, ill have to weld a plate to some pipe and drill and tap new holes for the exhaust flange

[156TYSON]

@seasonedtoker you do know that that flywheel is cast iron right? and that looks more like a tiller engine, not a push mower. also you can run push mowers without the blade..of course there not desighned for it because you cant mow your lawn without a blade.

[highdeserthater]

@seasonedtoker lol look at that flywheel and tell me that its alum. alum doesnt rust you stupid know it all. or in your case: no wit at all.....

[XXziomeqXX]

@seasonedtoker Idiot... Horizontal shaft Briggs have a heavier flywheel. Because they were not designed to work with blade!! That's why you can run them like this.

[mechanicalfriend]

@emmx85 you got own

[theAngelofhevn]

woow it runs smooth!

[62chevrolet]

Your going to cook that coil. I didn't see a ballast resistor. The coil you have there are only supposed to get about 6.9 volts max. 12 volts is too hot!

[colbycous01]

i would rather have points, they last the lifetime of the engine if you have a match book. when a magnatron goes bad,,, its over $30 for a new one. a match book is a nickle.

try your set up with a 9volt and see what happens.

[colbycous01]

why is this so hard for people to believe?

[walkingfreak]

@colbycous01 cause people can be jackasses and not realize that these engines are points and condensors and can work well with this type of thing

[playtimel]

I wish you could help me on the Briggs I build for garden tractor pullers I learn so much from u ---u amaze me - have not even seen things u do before - Time how do u do it?

[RFTAEC100]

Good idea when you have all those spare parts... still, a new magneto is just 35 bucks >.>

[walkingfreak]

i wish i was smart enough to use a car coil with a engine like this thatd be awesome!

[basedrum1000]

you made a lots of things on the engine why can't you make something to sit the engine on???

[spanermantim]

done the same thing when my original coil went bad but had to carry a battery on board the mower

[superfunnyman123]

I just bought a 2 hp off ebay and it burns oil really bad...

[brandon50394]

change the rings

[superfunnyman123]

I took it apart a little while ago and found out a valve was jamed open. dont think i am going to fix it.

[anthacdc]

it is easy to fix that

[UncleBubbles94]

if a valve was staying open it would not run or turn over all the way

[highdeserthater]

if its a flathead it will, but if its ohv chances are it will smack the piston.

[pivotboy63]

@superfunnyman123 it needs new piston rings then

[joshstep1]

how did you rig up the tachometer

[pivotboy63]

@joshstep1 it probably has a wire that coils around the spark plug wire, but i might be wrong i didnt see that closely

[halopersin]

awesome man

[sellboy33]

yo mine kick ass. its a 2 hp like that but its blue and i put lots of money into it and its really loud. i built it from the block. but i like yours cool man.

[MRkallek91]

changing the ignition goil makes little difference. a spark is just for igniting the gas, not too much for improved performance.

[GrandpaTD]

belive it or not some people upgrade their ignition coils for a "hotter" spark and better preformence

[MRkallek91]

You can adjust the heat of the spark plug just by changing the type. For instance, RCJ9, or RCJ6 (typical lawnmower plugs) have a difference in how hot the tip is. I´d still say he wasted his time totally when changing the whole coil.

[kiarra00]

I was just showing people it can be done! and it revs up much easier, because the original coil has some drag on the flywheel!

[MRkallek91]

OOOOO fuck! dont tell me you didnt know the coil´s distance from the flywheel can be adjusted just by loosening two little screws, you DUMMY! it is totally wrong for the coil to be rubbing against it.

[kiarra00]

Of course I know it can be adjusted, I have over 50 B&S engines and I work as a small engine mechanic for a company! What I meant was that the magnets in the flywheel make electricity for the spark, which has some drag on the flywheel. And you shouldn't call me a dummy!

[bullit131]

hey turn that crew with the spring on the carb out a little to get a good running idle

[dustingroat]

could u please tell me how u hooked up the coil and tach and all that stuff im very intersted, i think it would be sweet on my riding mower or my go cart lol :)

[c0c0asauce]

were those gauges from a 300zx(z32)?

[kiarra00]

No, they are from an 80s BMW 5 - series.

[fangus503]

take that goofy muffler pipe off there, reduce the backpressure, and run more efficiently, therefore, more balls.

[mitteey]

how did u wire in the rpm meter

[KartRacer695]

nice, i got a 1972 2HP briggs, check it out

[jack9102]

cool! and, uh, speaking of "cool"-ing, unless you want extensive dammage to your cylinder and piston, keep the damn shroud on!!! nobody cares about the stupid flywheel spinning!!!!

[kiarra00]

And nobody cares about your stupid comments!!

[skapunk83011]

Regardless of the rude manner in which he posted his suggestion, he is right. That is an air cooled engine, and without the shroud, it will not get enough airflow over its cooling fins, and overheat very quickly.

[kiarra00]

Yes, it's true that it can overheat without that, but not as easy as you say, remember the engine is under no load. I have seen these run on lawn mowers without shroud for many sesons without breaking, because they are very solid built.

[BOBKB3NZX]

it probably is showing the proper RPM, they dont run that fast

[zippypinhead11]

i do

[DRNEGOLICIS]

hay the fly wheel spinning was the best part of the vid its more entertaining watching it go round and round

[highdeserthater]

i wouldnt take it of myself because i would touch it while it spun around and around and around.

[ChevelleSSLS6]

bigger cam to feed a larger engine, perhaps?

Also might lose since the tree nazis are demanding what the small engine makers build. Kinda like the auto industry.

[mikeycomputer]

That is awesome. I want to know how you added the tach.

[30GB]

you might of made it few more hp's since the spark is stronger and flywheel has no drag so it might be 3hp now

[g8078572]

could u post a vid on how u hooked up the coil???

[Cchange4us]

how did you time the coil

[pivotboy63]

@Cchange4us its hooked up through the points

[zimone89]

hi!!!!!does it charge the battery???how it's possible????i want to install on my 3,5hp an electronic ignition from a Fire engine and if it's possible a 5,5 Ah battery...but i don't know how charge it....

[kiarra00]

It doesent charge the battery. The car coil is hooked up to the original points on the engine, works like in a car. If your engine has electrnic ignition, it doesent work, it needs to have points. Briggs engines before 1982 had points.

[zimone89]

i don't know the engine's year...look at my video....and tell me please...xDD

[kiarra00]

The 3,5hp engine in your video is newer than 82, so it soesent have points, and you cant put a coil on it. I think its a 1984-87, but to find out, you can check the serial number, located on the shroud, it says model:, type and code. First to didgets in the code is the year it was built, so if it says 86, its made in 1986. You can find out a lot about your engine with those numbers.

Also cool job, making it run horizontaly, i have converted one from vertical to horizontal to, very cool!!

[zimone89]

thank you!!!!!so i think that i take it like original...i want to change cams...it's possible to mount the 5hp's??

[kiarra00]

A 5hp cam could maybe fit, but it want give you any more horse power, because the 5hp has more hp because it has more cubic. The 3,5hp is 148cc and the 5hp is 206cc.

[zimone89]

yes i know this....and if i want anymore horses????i want to try a 28's carb and....????other???

[kiarra00]

you could supercharge it using an emission air pump from a car like i did. check out my video called "briggs & stratton 3hp with supercharger"

Takes the engine from 3hp to around 15-20hp.

[zimone89]

what's an emission air pump???

[kiarra00]

Its an air pump fitted on many modern cars, that blow air into the exhaust steam, to burn up unburned fuel, to reduce emissions. The one i used is from a 1988 Chevy van with a 350 V8 in it.

[zimone89]

mmmmm.....i don't know if i find this in Italy.....

[martygram17]

dude fer one thats a 3.5 hp and how the hell doesnt it have a coil?

[kiarra00]

what are you saying? This engine is a 2hp briggs & stratton, like the text says! And if you read the description, you see why its not got the original coil, because its running with a car coil!

[pre67]

lukes you not no much if you think car coil will over heat it all it will do is mack a bigger spark and a sparking spark pug dose not get hot may be worm

god knows where you got the idear if it over heating

[kiarra00]

He probably means it will overheat, because i took the shroud of, but ofcourse it wont in this short time!

[lukes1212]

it will over heat

[rfsimoes]

I did the exact same thing to my 3hp 1980 briggs and now it doesn't rev up.

I changed the oil, cleaned the carb and still does not rev up and sometimes it backfires thru carburettor.

Can anyone help me?

[WeSellYouTractors]

check the flywheel key and the valves that should do it

[kiarra00]

most likely its running to rich or to lean, or could be the spark plug!

[BasementBen]

My B&S engine did that too. I am guessing that I need to bolt it down, and play with it a little, and maybe that would work out a kink. The carborator seemed to not work after I took it apart to clean it..

[golfcarttractor]

runs great!

[manstock2]

Hi, I have an old old Brigg & Stratton that fires when the points open. Will a car coil work on it. I don't think a Model T buzz coil will. Thanks Ken from Indiana

[kiarra00]

The briggs & stratton 2hp in this video also fires when the points open, like yours, so im pretty sure that a car coil will work on it, if you wire it up correctly. ( i have explained it before, as a replay to another comment on this video) Good luck with your briggs modifications!

[briggsnclones]

How'd you put the coil on? What vechicle? I'm interested in doing this, but have no idea how. Thanks.

[kiarra00]

The coil doesen^t have to be bolted on to the engine, you can put it anywere. The coil can come frome any car, as long as the car has old style points, instead of modern electronic ignition. Al you do to wire it up, is take a bettery, and you put the - on the block, and the + on the coil, then take a wire from the pointhousing on the briggs engine to the other conection on the coil, wuich is -

[amfan12]

How many cylinders was the vehicle that dashboard came out of?

The tach is configured for how many cylinders the vehicle has by how many spark pulses there are.

The way the briggs point system is setup it should appear to the tach as a 2 cylinder "car" engine. So if it came out of an 8 cylinder car, you would have to multiply whatever RPM it shows by 4, if it came out of a 6, then by 3, etc..

[kiarra00]

I didn`t know this. Thanks man!

I think it came from a 4 cylinder car, so that means i have to multiply the RPM it shows by 2, right?

That means the Briggs was running at over 5ooo rpms at full trottle, because the tach showed 2600, or something, when i gave full trottle.

[amfan12]

5200 RPM sounds about right

[reffup]

take the muffler off and make a straite pipe

put some pantihose over the intake instead of the filtre...and fuck with the governor linkage... see how many rpm's you can get out of it

[1skiinIan]

how did you hook up that tach? can you make a video of that? I think a lot of people would want to see that... you should be able to safely rev that to 3600 rpm

[kiarra00]

Maybe i can make a video of that later, because right now i have taken of the coil and tach.

The tachmeter is acctually showing the wrong rpms to, bacause, when i gave max throttle, it showed 2000 rpm, and when it idled it showed 250rpm, so something is wrong.

[dangeroustoys56]

That motor uses points right? Ive herd about using a coil to bypass a magneto/points setup.

[kiarra00]

Yeah, it uses points, and the coil is used to bypass the magneto like you say.

[dangeroustoys56]

My 69 wheelhorse is setup like that- im thinking of using a coil to get it going- has compression but no spark- the magneto is $135....

[fordwillkillyou]

wow cool dude! can you show us how you made that? real cool!

[kiarra00]

Yeah, guess i can make another video, were i explain how to do it.