is this sweet or what/predator 99 ok?

[classic karter]

got a old go kart the other day for $100us.
i found a sticker under the seat, looks like its a KEN-BAR streaker S-911.
came with a Tecumseh 9hp paper weight.
after tearing into it a bit it looks like the break caliper is shot, and the break caliper arm was bent,the kept using after it bent and ruined the caliper. i beat it straight and ordered a new caliper.
ordered a new chain(420) and clutch while i was at it. my biggest issue now is the set screws on the axle. one on the break disk and both on the sprocket are stuck. i wish i had better tools.
also i need to figure out some kind of seat. and thinking about repainting it but thats alot of work.

i have a brand new predator 99 3hp motor. Think that'll be big enough? my gearing now is a 10T clutch and 60t sprocket

 

[landuse]

Welcome to the forum.

I would say the 3HP predator is not hoing to be enough with 6:1 gearing and tyres that tall. Even with small tyres you will struggle. The 3HP is only going to get you moving if you gear it REAL low, and at that stage people will be able to walk/run faster than your top speed.

If you get smaller tyres, gear at 12:1 (maybe) and you don't weigh much, then maybe you will be fine

I would suggest selling the 3HP and buying the 212 Predator

 

[OzFab]

my biggest issue now is the set screws on the axle. one on the break disk and both on the sprocket are stuck.

In that situation, PB Blaster & patience are your best friends; spray all the set screws & let them sit overnight.

Oh, while you're out picking up the PB Blaster, get yourself a set of hex keys (or allen keys); you should be able to pick them up for a couple of dollars... &, maybe, a cheap set of combination wrenches...

I have a brand new predator 99 3hp motor. Think that'll be big enough? my gearing now is a 10T clutch and 60t sprocket

OK, you currently have a 9hp engine & you want to replace it with a 3hp; do the math... LITERALLY!

 

[firemanjim]

In that situation, PB Blaster & patience are your best friends; spray all the set screws & let them sit overnight.

Oh, while you're out picking up the PB Blaster, get yourself a set of hex keys (or allen keys); you should be able to pick them up for a couple of dollars... &, maybe, a cheap set of combination wrenches...



OK, you currently have a 9hp engine & you want to replace it with a 3hp; do the math... LITERALLY!

Tony, he said in the first post that it's a 9hp paper weight, in other words, a Tecumseh engine....
I think I'd see if I could get the tec running,and I HATE Tecumseh, using a pz26 carb (or equivalent ) and hope for the best. From 9 to 3? Not gonna be a fun ride...... If nothing else, by a 212 and hop it up a little.....

 

[Moedog07]

There is a reason it had a 9hp. At minimum a Predator 6.5 with Air filter and Muffler mods.

 

[firemanjim]

There is a reason it had a 9hp. At minimum a Predator 6.5 with Air filter and Muffler mods.

If your referring to my comment, yes, I know why it had a 9hp..... And that's why I suggested fixing the 9hp he has (even though I hate them) ..... And as an option, a hopped up 212. It can be easily coaxed to push 9+ hp..... I'm no dummy.....

If your comment was directed at the OP,
My bad......

 

[Poboy kartman]

If your referring to my comment, yes, I know why it had a 9hp..... And that's why I suggested fixing the 9hp he has (even though I hate them) ..... And as an option, a hopped up 212. It can be easily coaxed to push 9+ hp..... I'm no dummy.....

If your comment was directed at the OP,
My bad......

Yes....it was directed at the OP.....you might be a dummy after all! !!!!

"Here's your sign".......

 

[MancoGX390]

I never knew Tecumseh engines were so bad! I'm kinda glad someone else got the winning bid on the dingo I was trying to win back along!

 

[OzFab]

Tony, he said in the first post that it's a 9hp paper weight, in other words, a Tecumseh engine....

I saw that, what's your point?

What I was intimating was that, even on a bad day, you can get 6-7hp from a running 9hp Tec, which is still double what a 99 Predator will deliver...

I never knew Tecumseh engines were so bad! I'm kinda glad someone else got the winning bid on the dingo I was trying to win back along!

In my experience, the engines themselves are ok, the carbs are the problem; when they run, they run well but, when they develop carb issues, they're a nightmare

One thing I discovered with the ones I've worked on (vantage 38 vert shaft), the primer doesn't work if the air filter is not bolted on; one of the bolts screws directly into the primer chamber, remove it & there's no seal &, therefore, you can't create the vacuum to make the primer work...

 

[firemanjim]

Well I assume that he means the engine is toast.... BUT I'd still see if it's fixable. I mean come on, it's still a 9horse block.... Even if it is a tec.... Put a better carb, sort out any other issues, and run the crap out of it.....
Doug..... Dohh! Could not see the sign due to the widows on my short bus are fogged up.....

 

[Moedog07]

Classic have you tried to start the Tecumseh engine?

 

[MancoGX390]

I saw that, what's your point?



In my experience, the engines themselves are ok, the carbs are the problem; when they run, they run well but, when they develop carb issues, they're a nightmare

One thing I discovered with the ones I've worked on (vantage 38 vert shaft), the primer doesn't work if the air filter is not bolted on; one of the bolts screws directly into the primer chamber, remove it & there's no seal &, therefore, you can't create the vacuum to make the primer work...

So if you were to get a aftermarket carb they would be ok? I'm a Honda or Briggs and Stratton person so i don't really deviate from the two

 

[OzFab]

More than likely although, I wouldn't really know, I've never tried it...

I try to stay away from them too; I prefer Honda & B&S myself...

 

[classic karter]

got it all done hopped in and the thing didn't move an inch. jacked up without any resistance goes real fast, 3.5 ft lbs torque isnt even enough to move the kart empty.
so the 99 is goin back on the minibike.
As for the tech 9 engine.... the carb was full of mud, it has no spark and it looks like it sat outside for a few years.
financially the predator 212 looks appealing. I'm considering something with an electric starter, but those all seem like they would be too large(kids and only 4acres)and triple the price at least.

still cant get sprocket set screws out, broken 3 allen keys now.

 

[OzFab]

got it all done hopped in and the thing didn't move an inch. jacked up without any resistance goes real fast, 3.5 ft lbs torque isnt even enough to move the kart empty.

Somehow, we all knew that would happen

still cant get sprocket set screws out, broken 3 allen keys now.

That's after you soaked them in PB Blaster/ penetrating oil? If that doesn't work, you may have to drill them out...

 

[classic karter]

see if the predator 212 will turn the wheels

so i picked up a $100 212. got a new max torque clutch. all put back together. just about ready to start it up for the first time. i just really wanna drive this thing, then I'll do a bunch of mods. but is there anything a HAVE to do before i start this virgin. please don't say something like add oil/gas.

big plans down the road...nice tail pipe, better carb/filter, jack-shaft/torque converter(came with one originally I think),box of parts that came with the kart had 2/3 of a comet torque converter.

 

[KartFab]

It originally came with the 30 series. Take a pic of your box of parts if you want to know what you need to buy? I bought a kart like that and it had a 30 series torque converter on it with a 6" driven unit.

Your clutch is going to burn up sooner or later, then it's torque converter time.

Also, about your set screws: if you have a decent screw driver with a head that accepts bits, buy a bit set that will fit the set screws. I had that same problem with some cheap Allen wrenches. The screwdriver worked so much better.

But, if you want to keep trying the Allen wrenches, you can hold pressure on the Allen wrench, then tap the end moderately hard in the direction you need to unscrew the set screw. This will give it a little bit of an impact and could break it loose.

 

[Twisted]

If you are still having trouble getting those set screws out, you need to get some of theses http://www.canadiantire.ca/en/tools-hardware/hand-tools/sockets/socket-sets/mastercraft-14-piece-3-8-in-bitset-0587373p.html?utm_campaign=bazaarvoice&utm_medium=SearchVoice&utm_source=RatingsAndReviews&utm_content=Default#.U_eF_sVdV8E

You put them on your 3/8 ratchet with an extension and they will do the trick. Although they are Mastercraft im sure you can find some down there.

 

[kart bruiser]

if you get the tec running i have a good working comet torque converter i can sell you with 5/8ths bore driven so it will bolt on 30 series jackshaft

 

[kart bruiser]

it came off this carter with 10hp tecumseh before i put a 212 and new 30 series with no mods and got 36mph out of it