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Forum: Engines & Clutches 10-13-2019, 10:16 AM
Replies: 13
Views: 170
Posted By KartFab
try the 140 main and 20 pilot Thats what I use,...

try the 140 main and 20 pilot Thats what I use, everything else stock. If it is stalling when cracking throttle, you might just need to adjust needle height. Also, i like to get my idle a bit rich,...
Forum: Engines & Clutches 10-11-2019, 06:34 PM
Replies: 13
Views: 170
Posted By KartFab
If you are going to spend enough money to need a...

If you are going to spend enough money to need a welded block, you would get more bang for your buck from this https://www.jrracecar.com/jr-billet-animal-block-1-tall-deck/

Unless you are a...
Forum: Go Kart Discussion 10-05-2019, 03:47 PM
Replies: 1
Views: 76
Posted By KartFab
I only do a basic yard kart style for now found...

I only do a basic yard kart style for now found here:

https://kartfab.com/live-axle-go-kart-plans
Forum: Go Kart Discussion 10-01-2019, 07:13 PM
Replies: 17
Views: 445
Posted By KartFab
this might be helpful when choosing jet sizes...

this might be helpful when choosing jet sizes (see end of manual)
www.briggsandstratton.com/engines-racing/~/media/Racing/carbtuningguide.pdf
Forum: Go Kart Discussion 09-28-2019, 03:20 PM
Replies: 17
Views: 445
Posted By KartFab
ok please listen here. I tuned an engine to run...

ok please listen here. I tuned an engine to run perfect on a $13 carb. You wont have the same tools here but this is the KEY

The carb controls how much air and fuel comes in (also know as air fuel...
Forum: Go Kart Discussion 09-26-2019, 08:54 PM
Replies: 17
Views: 445
Posted By KartFab
loss of power at WOT is typically a lean...

loss of power at WOT is typically a lean condition FYI.
Forum: Go Kart Discussion 09-11-2019, 02:42 AM
Replies: 0
Views: 117
Posted By KartFab
How To Race Mini Bikes

It has been a while since my last upload. For those that want to get into mini bike racing, this is the official "how to race mini bikes" video I put together. It has a few race tips, and a few...
Forum: Engines & Clutches 08-26-2019, 09:45 AM
Replies: 16
Views: 311
Posted By KartFab
1st choice: ARC ROD 2nd choice: rod with the...

1st choice: ARC ROD
2nd choice: rod with the dipper built into it
3rd choice: rod with the bolt on dipper

3rd choice will fatigue the oil dipper and it can snap off
2nd choice will not have...
Forum: More Builds 08-15-2019, 07:34 AM
Replies: 8
Views: 231
Posted By KartFab
i was worried about the concrete support working...

i was worried about the concrete support working loose over time (e.g. rocking back and forth) its just over-engineered. The idea was to have a lower point to "anchor" the winch down as it pokes out...
Forum: More Builds 08-13-2019, 03:22 PM
Replies: 8
Views: 231
Posted By KartFab
And there it is. Frame hasnt bent, winch hasnt...

And there it is. Frame hasnt bent, winch hasnt popped off, and we can steer this little guy into the side yard without running over the precious grass, or our fence (again). :cheers2:
Forum: More Builds 08-13-2019, 03:20 PM
Replies: 8
Views: 231
Posted By KartFab
Winch in Ground

So i may have ran over our neighbors grass a time or two, and my wife may have taken out our fencepost.

This leads me to exhibit A. Winching the trailer up our weird, steep, and wonky driveway. ...
Forum: Mini Bikes, Trikes, and Choppers 08-01-2019, 11:02 PM
Replies: 19
Views: 521
Posted By KartFab
Cam $40, carb $100, flywheel $100, $rod 60....

Cam $40, carb $100, flywheel $100, $rod 60. Springs $10

Basically get a stage 2 kit and add on the carb.
Forum: Go Kart Discussion 07-24-2019, 04:43 PM
Replies: 9
Views: 282
Posted By KartFab
to be clear, this has nothing to do with personal...

to be clear, this has nothing to do with personal experience. Some people are just into weird stuff, and I am talking about small engines here aren't I? If you leave the choke on after they warm up,...
Forum: Go Kart Discussion 07-24-2019, 12:10 PM
Replies: 9
Views: 282
Posted By KartFab
i had an epiphany - some people are like small engines.

Some people are like small engines. They like to be choked to turn them on. If you keep choking them, they will die.
Forum: Go Kart Discussion 07-24-2019, 11:40 AM
Replies: 14
Views: 394
Posted By KartFab
hands down, predator 212 will give you the best...

hands down, predator 212 will give you the best bang for your buck. change my mind.
Forum: Mini Bikes, Trikes, and Choppers 07-23-2019, 09:29 AM
Replies: 10
Views: 310
Posted By KartFab
i have ran 6 hp, 13 hp and 30+ hp on an 8t...

i have ran 6 hp, 13 hp and 30+ hp on an 8t sprocket, and have never had an issue. No chain tensioner either. Just keep everything lined up, lube, and tension the chain right and you will be okay.
Forum: Mini Bikes, Trikes, and Choppers 07-15-2019, 08:21 PM
Replies: 10
Views: 310
Posted By KartFab
gear for 25-40 mph at 3600 rpm. Do the...

gear for 25-40 mph at 3600 rpm. Do the calculation assuming the engine shaft is the jackshaft.

You can go as low as 8 tooth on the 30 series jackshaft with 40/41/420 chain.
Forum: Engines & Clutches 07-15-2019, 08:15 PM
Replies: 13
Views: 579
Posted By KartFab
My hemi had about 2.5- 3 thousandths on it fresh...

My hemi had about 2.5- 3 thousandths on it fresh out of the store. Valve lash is 100% manufacturer recommended on stock cam, and 100% camshaft card recommended if you get a different cam.

You...
Forum: Go Kart Discussion 07-01-2019, 10:10 PM
Replies: 55
Views: 1,086
Posted By KartFab
it has happened to me, start the video here at 19...

it has happened to me, start the video here at 19 mins 08 seconds https://youtu.be/mBMhE9j1m4Q?t=1148
Forum: Go Kart Discussion 07-01-2019, 02:43 PM
Replies: 21
Views: 535
Posted By KartFab
one wheel peel yeeeet! ...

one wheel peel yeeeet!

https://www.youtube.com/watch?v=iYfoFGpRBY0
Forum: Go Kart Discussion 07-01-2019, 02:34 PM
Replies: 55
Views: 1,086
Posted By KartFab
you are usually good with 20-50 thousandths on...

you are usually good with 20-50 thousandths on the shortblock, not sure about head/piston.

As far as lifters go, it doesnt matter if they are stock. They go as high as the cam lobe will push them,...
Forum: Go Kart Discussion 07-01-2019, 11:01 AM
Replies: 55
Views: 1,086
Posted By KartFab
I havent read through all of the posts here but...

I havent read through all of the posts here but here is my two cents on the matter, having built a few engines.

Clearance is a big deal, and lots of people like to be able to just drop a cam in...
Forum: Engines & Clutches 06-20-2019, 09:25 PM
Replies: 42
Views: 1,398
Posted By KartFab
no comment haha. I'm sitting here wondering if...

no comment haha. I'm sitting here wondering if you even have legitimate bearings in the front rims right now, and thinking to myself, is it just me or is that front fork where it attaches to the...
Forum: Engines & Clutches 06-20-2019, 08:44 PM
Replies: 12
Views: 510
Posted By KartFab
In my experience RLV mufflers rob about 0.5 hp...

In my experience RLV mufflers rob about 0.5 hp from a 212cc predator with stage 1 mods. Results may vary depending on what cam profile you choose. I don’t want to get into why and what but some cam...
Forum: Engines & Clutches 06-20-2019, 10:41 AM
Replies: 12
Views: 510
Posted By KartFab
the ebay slip on dirt bike mufflers are almost as...

the ebay slip on dirt bike mufflers are almost as loud as no muffler at all.

honda grom muffler is too small for a 420.

Any sort of stock bullet bike muffler you can find good deals on. I want...
Showing results 1 to 25 of 500

 

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