new here and i need help

[jtheshowstoppper]

ok when i was younger i had bought this minibike it had a 2hp b&s engine but it was weak now i pulled it out of the storage and was wondering what i can do to get some power out of it?is there anyway i can add like a jocky shifter to will take pics tommorow

 

[my_mini_bike]

you could get more power out of it with a larger rear sprocket, but you will loose top end speed, and vice versa; smaller rear sprocket less power but more speed

 

[GoAlterBridge]

If the engine can have a torque converter, get one, with that small an engine, it will probably double the HP, and increase the speed, too.
If a torque converter wont work, build/buy a jackshaft. You can also do mods to the engine like, mill the head down, advance the flywheel, as ell as use a lawnmower flywheel, and there are still many things you can do to the engine.
As stated before, you can also change the gearing.
I hope this has helped in some way.

 

[jtheshowstoppper]

yeah just dont know what to do never really messied with one of these before just found out its a 4 cycle engine engine is hella old it says power kraft on it are these upgrade exspensive like the the torque converter

 

[GoAlterBridge]

Yeah, a torque converter can be fairly pricy. If you get a new one off of a go kart website it'll cost around $160, minimum.
If you search around Ebay or some place like that, you could probably find one for only around $100.
The other choice is much cheaper, but isn't an automatic transmission; A jackshaft could increase power, and you can find some for only $30.

 

[2or3wheels]

A new engine would probly be cheapest and maybe easiest. And when i saw new it could be used, i meant new to you.

 

[jtheshowstoppper]

 

[GoAlterBridge]

Yeah the other option would be to get another engine. A rototiller engine would be perfect!

 

[jtheshowstoppper]

thats what i was thinking my grandpa has an older one in the back witha 5hp but when i got this it had enough speed for me back then like 10 years ago but now the **** barely even moves

 

[2or3wheels]

Go with the 5 horse.

 

[jtheshowstoppper]

will try and do but i got the 2hp running its just that the pickup tube keeps falling off any sugestions?

 

[mikeandike]

is the pickup tube the tube that runs back to the carb? I'm not sure but if its the one im thinking about i used a pipe clamp on it (the ones you use on garden hoses. What does that pipe do? sry im lost.

 

[jtheshowstoppper]

yeah it goes straight from the tank up to the carb but its to lil to put a clamp on its a tiny *** lil line

 

[mikeandike]

ooooooooooooo that one. I know what you mean now the little straw thingy. I thought you were talking about something else... Use epoxy to put it back in???

 

[kibble]

Does epoxy play nice with gasoline? I've never tried it myself, but if it does then you might have just said the solution to one of my problems on one of my engines.

 

[mikeandike]

I dunno. there's different kinds of epoxy too... Trial and error i guess.

 

[jtheshowstoppper]

alright thnx

 

[2or3wheels]

I used a nail and hammer and pinched it on myine where it goes into the carb, seemed to work, dont close the passage.

 

[jtheshowstoppper]

what dont understand

 

[2or3wheels]

just where the tube goes into the carb i hammered it smaller, holding it in.