Go Back   DIY Go Kart Forum > Building Plans And Advice > Mini Bikes, Trikes, and Choppers


Closed Thread
Thread Tools Display Modes
Old 03-23-2009, 01:18 PM
andriksen andriksen is offline
Join Date: Feb 2009
Posts: 52
Thanks: 5
Thanked 0 Times in 0 Posts
Default Mini bike project

Im going to build a minibike, and I want nice sound on the engine.
Some thing like a harley engine or somthing. What should i use? a honda 8 hp engine? or a pocketbike engine?

Stay tuned for new pictures.
My day:
Old 03-23-2009, 07:32 PM
thebest.07 thebest.07 is offline
Join Date: Dec 2008
Location: brisbane
Posts: 7
Thanks: 1
Thanked 0 Times in 0 Posts

I Would Use 8 Hp With Costom Pipe From Manafold
Old 03-23-2009, 08:20 PM
jr dragster T's Avatar
jr dragster T jr dragster T is offline
Senior Member
Join Date: Jul 2007
Location: Cold place
Posts: 3,966
Thanks: 18
Thanked 170 Times in 153 Posts

A nice header will make it sound nice. And as he stated above you could use the stock flange.
Old 03-27-2009, 04:53 PM
Raywelder's Avatar
Raywelder Raywelder is offline
Not an Admínistrator
Join Date: Mar 2009
Posts: 760
Thanks: 5
Thanked 36 Times in 35 Posts

On the minibike we built, A 8hp honda, with just a long straight pipe, sounds absolutley awesome.
Heres the pipe on it,

Something like that will give you the sound you are looking for.
The pipe was the upright pipe that went up to the handle bars on an electric scooter, it worked out well.

And you will notice, like someone mentioned before, its welded to the stock flange.
Old 05-15-2009, 05:20 AM
BradenM BradenM is offline
Etre Et Durer.
Join Date: Dec 2008
Location: In a big jar of Nutella, nom nom nom
Posts: 604
Thanks: 17
Thanked 31 Times in 30 Posts

Because of the RPM crazy nature of 2 stroke pocketbike engines (some can tap 12.5k), and because a lot of a 2-strokes power is in exhausts, I would suggest you stay away from pocketbike motors if it's a deep sounds your looking for.
Originally Posted by gokartcrazy View Post
omg i almost poopied my man thong i didnt know my brother wore thongs too
Old 05-15-2009, 09:46 PM
ZnsaneRyder's Avatar
ZnsaneRyder ZnsaneRyder is offline
Crazy Guy on a Bicycle
Join Date: Dec 2008
Location: FL
Posts: 278
Thanks: 47
Thanked 11 Times in 11 Posts

Agree. A 2-stroke would not have that deep sound.

A nice Honda GX or GX clone would sound like a motorcycle with a nice pipe.
New Kart Blue & Purple ThunderKart Frame 1-Wheel Peel, 7HP Predator 212cc Engine, 10T Hilliard Clutch, 54T Sprocket, 15x6x6 Rear Tires, 10x4.10x3.50 Front Tires
Old 05-21-2009, 01:17 PM
SpyGuy's Avatar
SpyGuy SpyGuy is offline
Join Date: Jan 2009
Location: Tucson, Arizona
Posts: 406
Thanks: 1
Thanked 24 Times in 24 Posts

There's only so much you can do to a pb pipe to change the engine tone. Mine has a spray-can muffler that lowered the high-pitched whine down to a lower rumble. I'd go for a long pipe with a muffler on the end for a good rumble.
The Rat: 47cc NF Cag/Daytona. Altoids can air cleaner. DuPont spraycan muffler. Brass knuckle fender. Wrench chain guard. Ask me about it if you want to know more ...
Closed Thread

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

All times are GMT -6. The time now is 06:35 AM.