Go Back   DIY Go Kart Forum > Other Stuff > More Builds

Notices

Closed Thread
 
Thread Tools Display Modes
  #1  
Old 10-27-2016, 06:39 AM
MilesGC1999's Avatar
MilesGC1999 MilesGC1999 is offline
rebmeM roinuJ
 
Join Date: Oct 2016
Location: Yorktown, Virginia
Posts: 99
Thanks: 69
Thanked 8 Times in 8 Posts
Default Electric to gas scooter conversion

I will be converting my ezip electric scooter to a gas scooter using a 212 cc predator engine and either a torque converter or a centrifugal clutch.

I will post pictures and videos on here updating as I go along.

Any tips or advice is welcome and appreciated.
  #2  
Old 10-27-2016, 07:06 AM
ezcome-ezgo's Avatar
ezcome-ezgo ezcome-ezgo is offline
G'me sumthin to write on
 
Join Date: Aug 2015
Location: Atlanta, GA
Posts: 2,805
Thanks: 2,304
Thanked 922 Times in 736 Posts
Default

Lets start here:
Drivetrain: What size is the chain on that scoot right now? I'd venture a guess that it can not handle the leverage laid down by a 6.5 hp gas engine. Also the rear wheel needs the sprocket on the other side (just turn it around). You'll need some kind of jackshaft to get the power off the engine down into that narrow frame.
Frame: Mega reinforcement is needed here, to handle the torque and HP, and weight of the engine. also, you'll have to try to keep the engine as close to the ground as possible to keep the CoG where you can actually balance this thing.

This is an ambitious project. I want see you try though, so get after it.
__________________
My name is Sylvester McMonkey McBean. I will make a decontamination.
The Following User Says Thank You to ezcome-ezgo For This Useful Post:
MilesGC1999 (10-27-2016)
  #3  
Old 10-27-2016, 08:31 AM
MilesGC1999's Avatar
MilesGC1999 MilesGC1999 is offline
rebmeM roinuJ
 
Join Date: Oct 2016
Location: Yorktown, Virginia
Posts: 99
Thanks: 69
Thanked 8 Times in 8 Posts
Default Electric to gas scooter conversion

Quote:
Originally Posted by ezcome-ezgo View Post
Lets start here:
Drivetrain: What size is the chain on that scoot right now? I'd venture a guess that it can not handle the leverage laid down by a 6.5 hp gas engine. Also the rear wheel needs the sprocket on the other side (just turn it around). You'll need some kind of jackshaft to get the power off the engine down into that narrow frame.
Frame: Mega reinforcement is needed here, to handle the torque and HP, and weight of the engine. also, you'll have to try to keep the engine as close to the ground as possible to keep the CoG where you can actually balance this thing.

This is an ambitious project. I want see you try though, so get after it.


Would it be safe to say that a welder is a good investment?

The chain is extremely thin. I plan to replace it. What type of reinforcement do you speak of?
Where would you recommend the engine be put.

Is this a good jackshaft? http://www.bmikarts.com/Used-Clutch-...ft_p_5348.html
  #4  
Old 10-27-2016, 09:59 AM
ezcome-ezgo's Avatar
ezcome-ezgo ezcome-ezgo is offline
G'me sumthin to write on
 
Join Date: Aug 2015
Location: Atlanta, GA
Posts: 2,805
Thanks: 2,304
Thanked 922 Times in 736 Posts
Default

You will not succeed without welding significant triangulation into this frame, IMO. Illustration below would be my 1st draft:
Attached Thumbnails
scoot conv.jpg  
__________________
My name is Sylvester McMonkey McBean. I will make a decontamination.
The Following User Says Thank You to ezcome-ezgo For This Useful Post:
MilesGC1999 (10-28-2016)
  #5  
Old 10-27-2016, 12:50 PM
MilesGC1999's Avatar
MilesGC1999 MilesGC1999 is offline
rebmeM roinuJ
 
Join Date: Oct 2016
Location: Yorktown, Virginia
Posts: 99
Thanks: 69
Thanked 8 Times in 8 Posts
Default Electric to gas scooter conversion

Quote:
Originally Posted by ezcome-ezgo View Post
You will not succeed without welding significant triangulation into this frame, IMO. Illustration below would be my 1st draft:


Thank you for the illustration. What welder would you recommend for a high schooler that makes like 50 a week(budget options)
  #6  
Old 10-27-2016, 03:04 PM
pRoFiT's Avatar
pRoFiT pRoFiT is offline
Can't buy it?, build it!
 
Join Date: May 2016
Location: California
Posts: 1,026
Thanks: 160
Thanked 253 Times in 215 Posts
Default

Lots of cheap options

couple car batteries and some stick rod!

dumpster dive for some microwaves and pull the transformers out. build arc welder. Need some 8 gage wire or bigger.

Build at friends house with welder?

Oh wait high schooler? Join welding shop!!! Take ROP welding!

Um bug parents for a welder? parents should encourage this kind of things.
__________________
2016 diygokart Contestant http://www.diygokarts.com/vb/showthread.php?t=33422.
The Following User Says Thank You to pRoFiT For This Useful Post:
MilesGC1999 (10-28-2016)
  #7  
Old 10-27-2016, 03:57 PM
MilesGC1999's Avatar
MilesGC1999 MilesGC1999 is offline
rebmeM roinuJ
 
Join Date: Oct 2016
Location: Yorktown, Virginia
Posts: 99
Thanks: 69
Thanked 8 Times in 8 Posts
Default

Quote:
Originally Posted by pRoFiT View Post
Lots of cheap options

couple car batteries and some stick rod!

dumpster dive for some microwaves and pull the transformers out. build arc welder. Need some 8 gage wire or bigger.

Build at friends house with welder?

Oh wait high schooler? Join welding shop!!! Take ROP welding!

Um bug parents for a welder? parents should encourage this kind of things.


I might ask the welding class at my school if I can get stuff welded. Where is a good place to get old car batteries?
  #8  
Old 10-27-2016, 04:14 PM
Functional Artist's Avatar
Functional Artist Functional Artist is offline
Senior Member
 
Join Date: Jul 2016
Location: Toledo, Ohio
Posts: 1,253
Thanks: 514
Thanked 413 Times in 334 Posts
Default

Don't get stuff welded

Learn to weld.

Don't wait on others!

Control your own destiny.

It's NOT hard.

I read a couple of books from the library & taught myself.

or you can take a class @ school.

Just a thought:

Maybe a weed wacker motor may be a better fit for your scooter.

Powerful but, smaller, lighter & most already have a cent clutch.

May be able to mount sprocket off elec motor so chain will work too.
The Following User Says Thank You to Functional Artist For This Useful Post:
MilesGC1999 (10-28-2016)
  #9  
Old 10-27-2016, 04:47 PM
MilesGC1999's Avatar
MilesGC1999 MilesGC1999 is offline
rebmeM roinuJ
 
Join Date: Oct 2016
Location: Yorktown, Virginia
Posts: 99
Thanks: 69
Thanked 8 Times in 8 Posts
Default

Where could I get metal that I wouldn't have to pay for? I am thinking changing to a steering wheel and going to a caryard near me and getting a supra wheel.

---------- Post added at 06:47 PM ---------- Previous post was at 06:15 PM ----------

Quote:
Originally Posted by Functional Artist View Post
Don't get stuff welded



Learn to weld.



Don't wait on others!



Control your own destiny.



It's NOT hard.



I read a couple of books from the library & taught myself.



or you can take a class @ school.



Just a thought:



Maybe a weed wacker motor may be a better fit for your scooter.



Powerful but, smaller, lighter & most already have a cent clutch.



May be able to mount sprocket off elec motor so chain will work too.


I will ask. Might be able to stay after school. My plan was to be able to haul a wagon as a trailer and go around the woods near my house. I will look into weedwackers a bit more
  #10  
Old 10-27-2016, 08:36 PM
OzFab's Avatar
OzFab OzFab is offline
Senior Member
 
Join Date: Nov 2011
Location: Warwick Qld, Australia
Posts: 15,617
Thanks: 1,133
Thanked 3,393 Times in 2,675 Posts
Default

Quote:
Originally Posted by Functional Artist View Post
Don't get stuff welded
Learn to weld.
Don't wait on others!
Control your own destiny.
It's NOT hard.
I read a couple of books from the library & taught myself.
or you can take a class @ school.
Why pay someone to do something you can do yourself? Welding is a very useful skill to have...

Quote:
Originally Posted by Functional Artist View Post
Just a thought:
a weed wacker motor may be a better fit for your scooter.
but, smaller, lighter & most already have a cent clutch.
be able to mount sprocket off elec motor so chain will work too.
Again, A 212 Predator will, most likely, weigh more than the scooter, even a 79cc Predator would be a better choice...

The thing is, you don't need a lot of hp to haul weight, all you need is the correct gearing; yes, you will sacrifice speed for torque but, running it through the woods, you won't want to be moving very fast anyway...

Quote:
Originally Posted by MilesGC1999 View Post
Where could I get metal that I wouldn't have to pay for?
Your best option? On the sidewalk

Seriously, people throw away all kinds of "junk";

"one mans trash is another mans treasure"

Option #2, junkyard; you'd pay for it but, not much & you have a broader choice of material...

Quote:
Originally Posted by MilesGC1999 View Post
I am thinking changing to a steering wheel and going to a caryard near me and getting a supra wheel.
That's up to you; you will need to make an adapter of some description...

My personal opinion, why spend time & money you don't need to?
__________________
2013 Build-off Winner - http://www.diygokarts.com/vb/showthread.php?t=21076
The Following 3 Users Say Thank You to OzFab For This Useful Post:
bob58o (10-28-2016), Functional Artist (10-28-2016), MilesGC1999 (10-28-2016)
  #11  
Old 10-28-2016, 04:16 AM
MilesGC1999's Avatar
MilesGC1999 MilesGC1999 is offline
rebmeM roinuJ
 
Join Date: Oct 2016
Location: Yorktown, Virginia
Posts: 99
Thanks: 69
Thanked 8 Times in 8 Posts
Default

Quote:
Originally Posted by OzFab View Post
Why pay someone to do something you can do yourself? Welding is a very useful skill to have...







Again, A 212 Predator will, most likely, weigh more than the scooter, even a 79cc Predator would be a better choice...



The thing is, you don't need a lot of hp to haul weight, all you need is the correct gearing; yes, you will sacrifice speed for torque but, running it through the woods, you won't want to be moving very fast anyway...







Your best option? On the sidewalk



Seriously, people throw away all kinds of "junk";



"one mans trash is another mans treasure"



Option #2, junkyard; you'd pay for it but, not much & you have a broader choice of material...







That's up to you; you will need to make an adapter of some description...



My personal opinion, why spend time & money you don't need to?


Thank you for the advice and info. Do you think I will need a torque converter or will I be fine with a cent clutch?
  #12  
Old 10-28-2016, 12:46 PM
bob58o's Avatar
bob58o bob58o is offline
Sick, Tired, and in Debt
 
Join Date: Jan 2016
Location: Under the Rothschild Whip
Posts: 7,248
Thanks: 3,165
Thanked 2,065 Times in 1,625 Posts
Default

Everybody is probably right about 212 being too large for this.
A clutch will be fine.

---------- Post added at 01:46 PM ---------- Previous post was at 01:42 PM ----------

In two short weeks (if you can save)...
You can own this.
http://www.harborfreight.com/welding...der-61849.html

They are often on sale for less than $100.
Just replace the wire with some decent Lincoln flux core wire.
__________________
We do not inherit the Earth from our Ancestors, we borrow it from our children
The Following User Says Thank You to bob58o For This Useful Post:
MilesGC1999 (10-28-2016)
  #13  
Old 10-28-2016, 02:45 PM
MilesGC1999's Avatar
MilesGC1999 MilesGC1999 is offline
rebmeM roinuJ
 
Join Date: Oct 2016
Location: Yorktown, Virginia
Posts: 99
Thanks: 69
Thanked 8 Times in 8 Posts
Default

Quote:
Originally Posted by bob58o View Post
Everybody is probably right about 212 being too large for this.
A clutch will be fine.

---------- Post added at 01:46 PM ---------- Previous post was at 01:42 PM ----------

In two short weeks (if you can save)...
You can own this.
http://www.harborfreight.com/welding...der-61849.html

They are often on sale for less than $100.
Just replace the wire with some decent Lincoln flux core wire.


I will do that then. Now to hunt for free metal!
  #14  
Old 10-28-2016, 04:39 PM
Jfive Jfive is offline
Senior Member
 
Join Date: Jun 2012
Location: Great falls Montana
Posts: 646
Thanks: 20
Thanked 160 Times in 130 Posts
Default

Maybe an engine like this would be better. http://m.ebay.com/itm/49CC-2-STROKE-...922?nav=SEARCH
The Following User Says Thank You to Jfive For This Useful Post:
MilesGC1999 (10-28-2016)
  #15  
Old 10-28-2016, 05:41 PM
MilesGC1999's Avatar
MilesGC1999 MilesGC1999 is offline
rebmeM roinuJ
 
Join Date: Oct 2016
Location: Yorktown, Virginia
Posts: 99
Thanks: 69
Thanked 8 Times in 8 Posts
Default

Quote:
Originally Posted by Jfive View Post
Maybe an engine like this would be better. http://m.ebay.com/itm/49CC-2-STROKE-...922?nav=SEARCH


That was one of my ideas, but I decided I'd rather have a 4 stroke
  #16  
Old 10-28-2016, 07:43 PM
Jfive Jfive is offline
Senior Member
 
Join Date: Jun 2012
Location: Great falls Montana
Posts: 646
Thanks: 20
Thanked 160 Times in 130 Posts
Default

They have 4 stroke versions too.
The Following User Says Thank You to Jfive For This Useful Post:
MilesGC1999 (10-28-2016)
  #17  
Old 10-28-2016, 07:44 PM
MilesGC1999's Avatar
MilesGC1999 MilesGC1999 is offline
rebmeM roinuJ
 
Join Date: Oct 2016
Location: Yorktown, Virginia
Posts: 99
Thanks: 69
Thanked 8 Times in 8 Posts
Default

Quote:
Originally Posted by Jfive View Post
They have 4 stroke versions too.


I can't seem to find any. I will look some more. I also might go for a weedwacker.
  #18  
Old 10-28-2016, 08:02 PM
Jfive Jfive is offline
Senior Member
 
Join Date: Jun 2012
Location: Great falls Montana
Posts: 646
Thanks: 20
Thanked 160 Times in 130 Posts
Default

http://www.bikeberry.com/gas-engine-...mYsxoCdY7w_wcB
The Following User Says Thank You to Jfive For This Useful Post:
MilesGC1999 (10-28-2016)
  #19  
Old 10-28-2016, 08:31 PM
OzFab's Avatar
OzFab OzFab is offline
Senior Member
 
Join Date: Nov 2011
Location: Warwick Qld, Australia
Posts: 15,617
Thanks: 1,133
Thanked 3,393 Times in 2,675 Posts
Default

Hmm, half the engine at more than twice the price but, I see your point...
__________________
2013 Build-off Winner - http://www.diygokarts.com/vb/showthread.php?t=21076
The Following User Says Thank You to OzFab For This Useful Post:
MilesGC1999 (10-28-2016)
  #20  
Old 10-28-2016, 08:52 PM
Jfive Jfive is offline
Senior Member
 
Join Date: Jun 2012
Location: Great falls Montana
Posts: 646
Thanks: 20
Thanked 160 Times in 130 Posts
Default

Kinda like a 79cc for the price of a 212cc. Lol. The weight and integrated clutch and less weight and the fact that the wheel and sprocket can be left alone have some factor right?
The Following User Says Thank You to Jfive For This Useful Post:
MilesGC1999 (10-28-2016)
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 09:11 PM.