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8HP Kohler magnum mystery

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Walker View Drop Down
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Joined: 12 Sep 2009
Location: oh
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Walker Quote  Post ReplyReply Direct Link To This Post Posted: 14 May 2020 at 6:39pm
Don't underestimate the 6hp 99 buck Predator for price, quality and buildability. Some of them 6 hp Predators you see at the go kart tracks are actually putting out 25. They got a hemi version too if ya can find one.

Edited by Walker - 14 May 2020 at 6:42pm
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steve(ill) View Drop Down
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Joined: 11 Sep 2009
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Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 14 May 2020 at 3:39pm
I see a lot of them $99. Predators being put on go carts and there is a version with a 3 speed to repower old HONDA 70 mini Bikes from the 1970s.

Edited by steve(ill) - 14 May 2020 at 3:40pm
Like them all, but love the "B"s.
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Dusty MI View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dusty MI Quote  Post ReplyReply Direct Link To This Post Posted: 14 May 2020 at 1:50pm
I have a repowered 720. It had been repowered before I bought it. It's working very well.

Dusty
917 H, '48 G, '65 D-10 series III "Allis Express"
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ac fleet Quote  Post ReplyReply Direct Link To This Post Posted: 14 May 2020 at 1:04pm
repower is a royal pain!--the replacements never fit and the el-cheepos are a joke!
http://machinebuildersnetwork.com/
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chaskaduo View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote chaskaduo Quote  Post ReplyReply Direct Link To This Post Posted: 14 May 2020 at 11:04am
Them $99 6hp Predators are a pig in a poke. Gotta get em up and running right away to see if any good after a week of use. I call em the Good, the Bad, and the Fugly. Been there, but good one's seem to last well.
1938 B, 79 Dynamark 11/36 6spd, 95 Weed-Eater 16hp, 2010 Bolens 14hp
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Coke-in-MN Quote  Post ReplyReply Direct Link To This Post Posted: 14 May 2020 at 10:08am
Had Techumsa on my tiller and no spark as well as carb was bad from water in carb that froze - found it cheaper to go to Harbor Freight and get new engine for under $100 and repower it . 
Life lesson: If you’re being chased by a lion, you’re on a horse, to the left of you is a giraffe and on the right is a unicorn, what do you do? You stop drinking and get off the carousel.
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steve(ill) View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 14 May 2020 at 8:32am
I had one similar several years ago... Got low on oil and the aluminum bushing/ bearing on end of the crank "stuck".... Not bad, so i broke it free and filled with oil and rotated 100 times till it felt "better"... tried to start and it only had 40 psi compression... Rings got hot and distorted.... had to hone and new rings.
Like them all, but love the "B"s.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote baverwolf Quote  Post ReplyReply Direct Link To This Post Posted: 14 May 2020 at 8:19am
Could it have maybe partially sheared the flywheel key causing timing to be off and it fights against itself???
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jaybmiller View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jaybmiller Quote  Post ReplyReply Direct Link To This Post Posted: 14 May 2020 at 5:30am
sigh, gettin too old for this..
neighbour's Horse rototiller,engine kinda slowed down, stumble, died. He replaces sparkplug and air filter. Won't start. has good blue spark,plug .025, gas, compression,kinda hard to spin over,won't even cough or bark with gas into carb or cylinder. was low on oil, now full. hard(for me) to pull over with plug, easy without. I was thinking 'kinda siezed' but she spins and valves open/close. Not ONE bang.
Anyone work on them before ?? ANY ideas what's wrong ??
I though about timing but he was in the garden, NO rocks, it just slowly died..
sure wish it had electric start....
thanks for any insight.
Jay


Edited by jaybmiller - 14 May 2020 at 5:33am
3 D-14s,A-C forklift, B-112
Kubota BX23S lil' TOOT( The Other Orange Tractor)

Never burn your bridges, unless you can walk on water
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