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-   Mini Bikes, Trikes, and Choppers (https://www.diygokarts.com/vb/forumdisplay.php?f=5)
-   -   kick starter (https://www.diygokarts.com/vb/showthread.php?t=852)

bigkenny 01-23-2008 09:25 PM

kick starter
 
i am building a mini chopper for my grandson. iam looking fora kickstarter plans or does amy body how i can make one for a briggs and stratton motor any ideas will helpful thanks kenny

RobertD 01-23-2008 10:50 PM

welcome to the site.

I haven't seen a kick start for a briggs, but if someone can dig one up I'd like to see it. But if you think about the direction that the flywheel rotates, I think it might not work.. hmm.

Russ2251 01-23-2008 11:00 PM

I have several Briggs & Stratton engines dating back to 1936 up to about 1947 which have a "kick start" as originally designed. There are some out there that used "lever start" and "crank start". There is no practical way to adapt these to current engines that I can envision without some radical design change to recoil and/or blower housing. A couple of my starters were broken or bent at some point and re-welded/straightened. I can snap a pic and post it tomorrow so you can get an idea of what you are up against. Out of curiosity...why do you want to do this?

crazycart 01-24-2008 07:43 AM

i thought about this a bit and i think ive come up with something.

when you take the recoil off a standard flathead briggs,there is a freewheel type thing(dont know exact name)that when you turn it right the small balls inside of it shift positions and "lock" it so it turns over,and when you turn it left,they dont,this allows the engine to run with the recoil.if you could weld a kick lever onto the small freewheel and hook up a spring to it so you could kick it down and the spring would pull it back up....just an idea

bigkenny 01-25-2008 04:37 PM

kick starter
 
thanks a lot great idea thanks ken

Russ2251 01-25-2008 06:19 PM

2 Attachment(s)
Take note that there is a gear ratio. 16 teeth on driver and 12 teeth on crankshaft (pic on right). If you directly connected starter to crankshaft (via recoil ratchet) it may not produce enough rotation to actually start. Might only get about 1/2 revolution (if that). It might start if caught on compression cycle but I have my doubts.
When I kick this one over it will spin about 3 or 4 complete revolutions.
Pic on left is a 1942 Briggs washing machine engine. Model WMB.
Pic on right is a 1936 Briggs model Y. Also for a washing machine.

2or3wheels 01-25-2008 07:50 PM

There have been some ive seen that bold up to tech 5 hp for the rupp roadsters
They were an "option and the last one i saw 1 ago or so went for around 150$.

bigkenny 01-27-2008 06:45 PM

kick starter
 
thanks again ken

skid20 06-17-2009 05:16 PM

I once thought about using a rear bicycle sprocket on the engine and small length of chain leading to a partial front bike sprocket using half of the pedal/crank assembly as the start lever. This would probably give you the correct amount of revolutions per kick...and a cheap solution

freakboy 06-17-2009 05:19 PM

The last post was like a year ago i dont even think the person who first posted is even active here anymore. so keep up with the time newbie.

EagleTalons 06-17-2009 05:40 PM

Hey now! I'm still interested in kick starters. :p

skid20 06-17-2009 06:00 PM

Quote:

Originally Posted by freakboy (Post 48764)
The last post was like a year ago i dont even think the person who first posted is even active here anymore. so keep up with the time newbie.

I apologize, I just thought that last post, even being a year ago, is still information that is up for topic.....

Maybe you already had this idea and you needed to comment out of jealosy.... Understand that forums are for the exchange of information old or new it still helps those who are in need of similar information. So don't allow me to step on your toes freakboy.

Raywelder 06-17-2009 06:03 PM

I have a kickstart Briggs and stratton Washing machine engine from 1945-55! :wai:

I've pondered this Idea.

I had a fairly simple Idea a few months ago.
cant remember it though!

Kenny_McCormic 06-17-2009 06:28 PM

Quote:

Originally Posted by 2or3wheels (Post 5698)
There have been some ive seen that bold up to tech 5 hp for the rupp roadsters
They were an "option and the last one i saw 1 ago or so went for around 150$.

My dad has one of those tec kick starters and a never ran tec 5hp(new short block old everything else) from the same time period. Didn't know they were worth so much!

porsche930dude 06-17-2009 07:25 PM

yes they made them in the 60's and they come up on ebay fromt ime to time. Hegar made them and a couple other brands. first pic is an old motor with a factory one. second is a homemade one notice no gear reduction from what i recall he said it didnt work too well. Third pic is what im going to try and make one out of when i get the time. Its a steering gear from an old ride on lawn tractor. I dont have any pics of the old aftermarket ones. Check out oldminibikes.com theres a few discussions on them.
http://i721.photobucket.com/albums/w...ZQBKG0Dt27.jpg
http://i721.photobucket.com/albums/w...20DSC00534.jpg
http://i721.photobucket.com/albums/w...r6kkkfg037.jpg

skid20 06-18-2009 02:19 PM

steering gear..... Hey I have one of those! Thats a great idea!

are you using it with the briggs ratchet starter thingy?

I'd have to figure out a way to disengage it on a honda motor.

Good start (hopefully...Ha) post some pics if you try it soon!

Raywelder 06-18-2009 10:15 PM

http://i721.photobucket.com/albums/w...20DSC00534.jpg
I've been wondering if you could do it that way.
That would be the easiest way,
bad part is you cant keep the rope.

EagleTalons 06-18-2009 10:27 PM

Bad part is you only get half a turn in...

Raywelder 06-19-2009 05:47 AM

Quote:

Originally Posted by EagleTalons (Post 49016)
Bad part is you only get half a turn in...

True.

skid20 06-19-2009 05:54 AM

I would bet adapting that steering gear idea or something like it would give at least 2 turns or more.... I'm gonna try that when I get some time.


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