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Forum: Engines & Clutches Yesterday, 02:36 PM
Replies: 8
Views: 125
Posted By KartFab
If I was having this issue I would 1) replace...

If I was having this issue I would
1) replace spark plug
2) remove carb and pull start at wot with starter fluid

Do this and check back
Forum: Go Kart Discussion 02-16-2020, 07:08 AM
Replies: 11
Views: 149
Posted By KartFab
I’d try the old axle first. What issues are you...

I’d try the old axle first. What issues are you having? Some sprockets on Manco karts have an Allen head bolt that you need to back out, position sprocket, then tighten down,
Forum: Engines & Clutches 02-15-2020, 03:40 PM
Replies: 20
Views: 341
Posted By KartFab
Looks good. I got some advice from a legit engine...

Looks good. I got some advice from a legit engine builder. Take the long side radius out about 50 thousandths up to the bowl.

Also the short side “corners” can have a bit more material taken out...
Forum: Photo Gallery & Project Log 02-11-2020, 07:44 PM
Replies: 27
Views: 480
Posted By KartFab
I’ve done 64mm stroke and 70mm stroke and it...

I’ve done 64mm stroke and 70mm stroke and it doesn’t affect the engines ability to rev higher. Bigger stroke just makes more torque, especially down low. Seems like the cam and springs determine max...
Forum: Engines & Clutches 02-07-2020, 10:51 AM
Replies: 6
Views: 105
Posted By KartFab
Never had this issue, but then again, I torque to...

Never had this issue, but then again, I torque to spec with a torque wrench.

If i were you, i would clean up the threads with brake cleaner or something to get rid of the oil, the put on more...
Forum: Engines & Clutches 02-06-2020, 07:30 PM
Replies: 18
Views: 316
Posted By KartFab
On my dyno: 6.5 hp stock 7.5 - 8 hp stage 1 ...

On my dyno:
6.5 hp stock
7.5 - 8 hp stage 1
13.2+ hp camAnd slide carb no port work.

Huge gains with cam and carb with no port work. Iirc it was a mod 2 w/22mm China mikuni

With compression...
Forum: Engines & Clutches 02-03-2020, 06:26 PM
Replies: 4
Views: 115
Posted By KartFab
Stage 1 mods will give you a nice boost in...

Stage 1 mods will give you a nice boost in performance from 6.5 hp to 7.5-8 hp with a predator or tillotson 212.

The engine is basically a hemi-predator 212 with stiffer valve springs, slight...
Forum: Go Kart Discussion 02-03-2020, 06:21 PM
Replies: 2
Views: 120
Posted By KartFab
valve float, jetting, timing, and gearing all...

valve float, jetting, timing, and gearing all come to mind. Test each one to see.
Forum: Using Tools and Welding 01-30-2020, 09:50 AM
Replies: 15
Views: 438
Posted By KartFab
get one of these maybe...

get one of these maybe https://www.facebook.com/marketplace/item/2787612981306386/
Forum: Engines & Clutches 01-26-2020, 09:47 AM
Replies: 21
Views: 493
Posted By KartFab
16 stock carb flows 41-42 Slide carbs: 22...

16 stock carb flows 41-42

Slide carbs:
22 flows 88 CFM,
24 flows 97
26 flows 110

So prbably less than 88, but more than 42 hehe
Forum: Using Tools and Welding 01-23-2020, 11:31 AM
Replies: 15
Views: 438
Posted By KartFab
METROPLEX WELDING SUPPLY is where i get all my...

METROPLEX WELDING SUPPLY is where i get all my stuff. I bought a used tank (expired with the hydrotest with the wrong valve on it) on craigstlist and they hydrotested it and put a new valve on it....
Forum: Engines & Clutches 01-22-2020, 06:41 AM
Replies: 8
Views: 228
Posted By KartFab
hemis had always had flat tops? At least all the...

hemis had always had flat tops? At least all the hemi's I have messed with. Also, i would contact customers service about the cam that has that rough line through the lobe, edges dont matter. A lot...
Forum: Engines & Clutches 01-15-2020, 08:01 PM
Replies: 2
Views: 157
Posted By KartFab
here ya go ...

here ya go
https://www.gokartsupply.com/tcbelts.htm
...
Forum: Engines & Clutches 01-13-2020, 03:27 PM
Replies: 21
Views: 493
Posted By KartFab
the $18 one that you posted is the exact one i...

the $18 one that you posted is the exact one i used for my tecumseh. Only had to drill the main out to .033"

The $10 one that you posted is the exact one i used on my briggs flathead. I did not...
Forum: Engines & Clutches 01-12-2020, 08:10 AM
Replies: 28
Views: 713
Posted By KartFab
depends on how fast you want it. Keep it stock...

depends on how fast you want it. Keep it stock and do a stage 1. If you remove governor, you should do flywheel rod, springs, and throw a decent cam in there for good fun.
Forum: Engines & Clutches 01-08-2020, 05:24 PM
Replies: 21
Views: 493
Posted By KartFab
I got a China carb and had to drill the main to...

I got a China carb and had to drill the main to .033” to work on a tecumseh. Start with idle, then needle position, then main jet. FYI you will need to find or make some sort of intake adaptor.

Ps...
Forum: Engines & Clutches 01-07-2020, 09:24 PM
Replies: 18
Views: 862
Posted By KartFab
Karl, are you saying the 20 series will handle...

Karl, are you saying the 20 series will handle very high rpms? I’ve only messed with two of the
Before, and that was when I was flipping go karts.

Regardless, I’m not going to convince you one...
Forum: Engines & Clutches 01-07-2020, 04:49 PM
Replies: 18
Views: 862
Posted By KartFab
I have always been a fan of the 20 series. The 30...

I have always been a fan of the 20 series. The 30 and 20 series can only handle 8 hp. Anything above that and you’re basically left with a polar pro jr dragster $500+ torque converter, or regear and...
Forum: Photo Gallery & Project Log 01-04-2020, 03:39 PM
Replies: 5
Views: 251
Posted By KartFab
this is what i did to mine to get it to work with...

this is what i did to mine to get it to work with the predator. Notice where the chain is. I had the tecumseh and was really really dissapointed in how poorly it performed. The predator 212 was night...
Forum: Go Kart Discussion 12-31-2019, 09:08 PM
Replies: 0
Views: 138
Posted By KartFab
Last chance

Last chance to win this mini bike by midnight tonight!!! https://teenlife.rallyup.com/minibike
Forum: Go Kart Discussion 12-28-2019, 03:01 PM
Replies: 1
Views: 114
Posted By KartFab
See if you can get a guy to weld it.

See if you can get a guy to weld it.
Forum: Go Kart Discussion 12-20-2019, 05:58 PM
Replies: 10
Views: 276
Posted By KartFab
Judging by the rust on all those parts, i would...

Judging by the rust on all those parts, i would say that's a hard no. The carb could be a knock off, and i got a new one on eBay for $13, that included the air filter. It has an adapter though, so...
Forum: Mini Bikes, Trikes, and Choppers 12-19-2019, 02:30 PM
Replies: 12
Views: 341
Posted By KartFab
MDB is always calling people out. That would be...

MDB is always calling people out. That would be cool to see someone eat humble pie haha.
Forum: Go Kart Discussion 12-16-2019, 01:14 PM
Replies: 24
Views: 651
Posted By KartFab
nice!!! cant wait to see it in the daylight....

nice!!! cant wait to see it in the daylight. Sounds mean.
Forum: Go Kart Discussion 12-15-2019, 10:17 PM
Replies: 6
Views: 199
Posted By KartFab
most manco karts that i have seen just use nuts...

most manco karts that i have seen just use nuts on the bolt between teh sprocket and the rim. Holds it securely. Works great.
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