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Forum: Go Kart Discussion 09-11-2019, 02:42 AM
Replies: 0
Views: 63
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: 224
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: 180
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: 180
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: 180
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: 401
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: 258
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: 258
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: 360
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: 234
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: 234
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: 475
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: 890
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: 486
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: 890
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: 890
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: 1,117
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: 453
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: 453
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...
Forum: Engines & Clutches 06-17-2019, 11:42 PM
Replies: 42
Views: 1,117
Posted By KartFab
Gear for 40 mph at 3600 rpm, then put a dynocams...

Gear for 40 mph at 3600 rpm, then put a dynocams 275 cam in it, 4-6 degree advance key, 50 lb hd springs, and it will rev to 6500 rpm and get you where you want to be speed wise.

Iíve been 65 mph...
Forum: Go Kart Discussion 06-10-2019, 09:24 AM
Replies: 51
Views: 948
Posted By KartFab
no fab work. Just spacers put in different...

no fab work. Just spacers put in different locations and had to remove the axle sprocket and flip it 180- degrees.
Forum: Go Kart Discussion 06-10-2019, 08:51 AM
Replies: 51
Views: 948
Posted By KartFab
You can do what I did here. Notice where the...

You can do what I did here. Notice where the sprocket and chain are now? This is the same go kart too by the way.
Forum: Photo Gallery & Project Log 06-10-2019, 08:49 AM
Replies: 87
Views: 6,264
Posted By KartFab
Cant wait to see that thing rip on the go kart

Cant wait to see that thing rip on the go kart
Forum: Engines & Clutches 05-30-2019, 02:26 PM
Replies: 10
Views: 490
Posted By KartFab
the crankcase seals dont typically leak unless...

the crankcase seals dont typically leak unless you have the engine mounted on an uneven surface, that is bad news, or if a bolt is coming loose on the crankcase cover. You can get a new seal pretty...
Forum: Engines & Clutches 05-30-2019, 02:05 PM
Replies: 21
Views: 675
Posted By KartFab
1) stock muffler will be good haha 2) open pipe...

1) stock muffler will be good haha
2) open pipe is loud yes
3) ebay muffler for pit bike is just like running and open header anyway. I honestly believe they are made to make a 125cc pit bike sound...
Showing results 1 to 25 of 500

 

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