5hp Briggs Problems !

[jimmypadua]

I picked up a 5hp briggs today for 25$ that looks like it came off a roto tiller or something, and the crankshaft is less than 3" long. The carb is bolted on all weird and uses allen wrenches instead of socket wrenches and all got stuck so i couldnt take the carb off to clean it so i just unbolted the diaphram cover and blasted some carb cleaner, then took off the head and scrapped off the tons of gunk and got it together now, and it still isnt running well. Oil changed and fresh gas, what should i do ? BTW, what could i do about the extra short shaft ?

 

[DZLBIKE]

The short shaft can be swapped out with another 5hp crankshaft fairly economically. Or you could run a simple sprocket and chain drive to a jackshaft and mount your centrifugal clutch on the jackshaft.

 

[jimmypadua]

Yeah, i was thinking about swapping the shaft, but i dont want to mess w/jack shafts.

 

[metal man]

http://www.oldminibikes.com/forum/engines-modifications/46326-how-change-crank.html
this shows what is involved in the crank swap . not to bad takes a little bit of time .
on the carb you will need to clean it better to get all the crap out of it . the pick up tube may be pluged causing the running problems

 

[Richard Trotter]

A 2 1/2" shaft should work OK with most clutches.

 

[mmisterbungl]

just how much shorter than 3" is it?

 

[jimmypadua]

The shaft is only 1" long. But thanks for that "how to"

But see, the problem is that i cant undo the screws holding the carb to the gas tank. Their like weird allen wrench heads. And they alost are stripped out. :hammer:

 

[5 Horse Fan]

Sound like your gonna need a damaged screw removal kit.
Craftsman part# 952154

I own one of these and I don't recommend using a drill to speed things up.:doah:

 

[DustyW]

i agree cause if you snap one of those easy-outs in there youll never be able to drill it out again

 

[Bluethunder3320]

sometimes i weld bolts onto stripped out alan wrench bolts. but if its so small use an EZ out.

is it possible to grab it with a vice grip?

 

[jimmypadua]

I would not weld bolts the allen wrenches... Its in atoo tight spot to muscle it out w/ a vice grip. I didnt that with the other screw. I might just sell the engine all together. But its a 1" shaft ?

 

[funky ole]

add pics, we can then see what the trouble is and help further. you may have one of the newer engines with torx head bits.