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Old July 23rd, 2011, 03:32 PM   #1
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Default 5Hp Briggs and Stratton Governor ???

I have a 5HP B&S motor, horizontal shaft. I dont have all the linkages for the governor. Can I just run the throttle directly to the carb or do I need to remove the governor gear / shaft, etc from inside the crank case too? It looks like removing the entire assembly is pretty easy and would add some performance, but really I am just looking to get this thing running for now. I dont want to blow it up yet. Its for a minibike.

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Old July 23rd, 2011, 03:35 PM   #2
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You can run B&S motors sans governor, been doing it for years on minibikes and go-karts. When the boys were younger, everyone had their own minibike and they would rip around the yard for hours until they ran out of gas. That was my only rule- no refueling a hot motor.
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Old July 23rd, 2011, 03:53 PM   #3
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Mention removing a governor on oldminibikes.com and they will ban you..........seriously.

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Old July 23rd, 2011, 04:07 PM   #4
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You can run B&S motors sans governor,
sans??
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Old July 23rd, 2011, 04:08 PM   #5
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Removing the governor internally just allows you to rev it till it blows right? What about leaving the assmembly in place and just running the throttle cable to the carb with out the governor attached to the throttle linkage??
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Old July 23rd, 2011, 07:20 PM   #6
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OK, been doing some research. Going back out to the garage to tear the motor apart, grind down the ports, remove the governor, shave the heads and make a throttle linkage.
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Old July 23rd, 2011, 07:32 PM   #7
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I had a go kart that I didn't have the linkages for, I ran the cable right to the butterfly.

I wish I still had that motor... my dad sold it at a garage sale without me knowing. That go kart was fast.
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Old July 23rd, 2011, 10:08 PM   #8
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Just ditch all of the governor parts, they aren't needed. File the key on the crank about 1/3 of the way, so you can advance the timing, and find a tilotson or mikuni carb if you can.

P.s. you won't get banned from OldMiniBikes.com, just chastised for not searching. There are about threekazilliondibillion posts about it.
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Old July 23rd, 2011, 10:35 PM   #9
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sans??
French for 'without'.
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Old July 24th, 2011, 12:01 AM   #10
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French for 'without'.
Don't educate Mr. Green Again!!! His head will explode!!
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Old July 24th, 2011, 12:52 AM   #11
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get that thing done and come out to centerpoint dr off of opdyke behind the soccer arena tomorrow 6-8pm there will be a few of us out there racing the minibikes....yep i said racing minibikes.....
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Old July 24th, 2011, 08:56 AM   #12
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get that thing done and come out to centerpoint dr off of opdyke behind the soccer arena tomorrow 6-8pm there will be a few of us out there racing the minibikes....yep i said racing minibikes.....
shit you guys are right behind my work. when was the last time you guys were there? i thought i heard a bunch of small engines at like 8:30 awhile back.
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Old July 24th, 2011, 09:29 AM   #13
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its just been a sunday afternoon/evening thing for the last few weeks, good place to do some testing and get ready for the minibike race @ ubly.
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Old July 24th, 2011, 12:45 PM   #14
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Maybe next week I can make it!!! I tore the motor apart, removed the governor internals from the crank case, ground down the slag from the intake and exhaust ports, ground down the block near the valves and cylinder, and removed the exhaust. I am going to make a straight pipe I think. I dont see how to change the jets in this stupid little carb. They dont just turn out like most carbs. Im not sure if I will need to change them or not. ???
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Old July 24th, 2011, 12:50 PM   #15
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Lets do this!! By the way, drag racing minibikes might be worse than racing turtles and I like turtles.

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Old July 24th, 2011, 12:57 PM   #16
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LOL thats my buddys video, i thought the same way about the minibike drag racing thing also untill i checked it out i mean how fast can a lawnmower motor go? the got these things going 8.?? @ around 80-90mph in the 1/8. prety funny to check out.
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Old July 24th, 2011, 07:41 PM   #17
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LOL thats my buddys video, i thought the same way about the minibike drag racing thing also untill i checked it out i mean how fast can a lawnmower motor go? the got these things going 8.?? @ around 80-90mph in the 1/8. prety funny to check out.
jr drag racing started out as just a "What if?" idea but look where it is now. small engines can be a hell of alot of fun. hell i built a craftsman lawn tractor that goes 35 mph. gps verified. it's a scary ride though as tractor steering is sloppy as hell.
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Old July 24th, 2011, 07:47 PM   #18
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werent you told this exact same info friday
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Old July 26th, 2011, 04:29 PM   #19
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werent you told this exact same info friday
Please quote me what info I was told on Friday??. All info I see here so far reguarding this motor and its governor has been rong, including what you told me on Friday.
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Old July 26th, 2011, 07:19 PM   #20
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After reading the last minibike thread here I bought an old heathkit boonie and put a harbor freight predator engine on it. I even picked up another doodle and put one on that too. Now the wife and I can smoke weed and ride around the yard, lol.

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