where to get bigger spark plugs and clutch for my crankshaft?

[horror_fan]

i have a briggs raptor. looking to get a clutch and bigger spark plug.


i need a 14mm thread with a 1/2" reach, spark plug.

and i need a clutch that works with a crank shaft , my shaft has NO key stock slot ... so i don't know what kind i need.

 

[ericmuhlbauer]

what size is the motor? the comet 40 series is rated for up to 18hp motors and the 30 series for smaller engines

 

[ML-TOYS]

I doubt that a raptor came without a keyway. Post pics of this engine and ahaft

 

[Bbqjoe]

I doubt that a raptor came without a keyway. Post pics of this engine and ahaft

And the shaft as well.

 

[Poboy kartman]

And the shaft as well.

You Shashole!

 

[horror_fan]

I doubt that a raptor came without a keyway. Post pics of this engine and ahaft

...well I can clearly see that theres no keyway
but I guess it's so you can tell me what to buy ... so heres the photos as requested.

FYI the previous owner was using a clutch with a set screw and it was just digging into the clutch and thats how it rotated the crankshaft, NOT ideal IMO.

Also does this mean the engine is not a raptor ?
and just a plain briggs 5hp flat head utility thing ?

 

[horror_fan]

what size is the motor? the comet 40 series is rated for up to 18hp motors and the 30 series for smaller engines

i'm not sure what the size is.. I can only guess its a raptor or a briggs 5hp.

now are you asking because this will help you figure out how to get a clutch onto my crankshaft or this info will help you tell me where to buy a spark plug?

 

[horror_fan]

bump !


i need a solution ! how do i install a clutch on the my crankshaft ? I have all thse plans ready to work on my go kart but wont be able to drive if i don't have clutch !

 

[tinamcjittles]

bump !


i need a solution ! how do i install a clutch on the my crankshaft ? I have all thse plans ready to work on my go kart but wont be able to drive if i don't have clutch !

Short of buying a new crank, your best option is to use the set screws, but use two instead of one because most clutches have two set screws.
.
Also, since your clutch wont need a bolt to hold it in place any more you could put a bolt with a matching thread half way through the shaft!

Here's the spark plug btw..

 

[Tom Knight]

Could well be simpler to get a 212 predator and go from there, 120 bucks sometimes on sale for 95......If it blows--and they seem pretty tough not a catastrophe.. just a thought....old dog

 

[B.M.800]

Pretty sure Doc Sprocket did a write up about cutting your own keyway. Title was something like "No keyway? No problem!"

{EDIT} Google foo to the rescue...

Here it is.

 

[OzFab]

FYI the previous owner was using a clutch with a set screw and it was just digging into the clutch and thats how it rotated the crankshaft, NOT ideal IMO.

Here's a simple trick to locking the clutch to the shaft without a keyway...

Also does this mean the engine is not a raptor ?
and just a plain briggs 5hp flat head utility thing ?

More than likely; A Raptor is a racing engine, specifically designed for karts so, one would think they would all have a keyway shaft...

It's very simple to put raptor stickers or even the shroud on a standard 5hp engine...

 

[horror_fan]

Could well be simpler to get a 212 predator and go from there, 120 bucks sometimes on sale for 95......If it blows--and they seem pretty tough not a catastrophe.. just a thought....old dog

yeah... i was sitting in the garage thinking about what to do all after noon ..

predator 212 went through my head but the things i dont like about it is everyone has one, and that dont sound as hot roddy as my flat head..(i know you can mod it but idk...)

also thought of trying to do a shifter cart with a dirt bike motor, even though it doesnt sound aggressive it will be fast

---------- Post added at 11:42 PM ---------- Previous post was at 11:41 PM ----------

Short of buying a new crank, your best option is to use the set screws, but use two instead of one because most clutches have two set screws.
.
Also, since your clutch wont need a bolt to hold it in place any more you could put a bolt with a matching thread half way through the shaft!

Here's the spark plug btw..

the set screws aren't "setting" any more they slip then the crankshaft starts to spin freely... my plan was maybe to drill holes a little deeper into the shaft so they set screws can go into the holes ... since i dont care about the motor anymore .

 

[Tom Knight]

I like the sound of a briggs too. Drill hole all way thru & use a grade #8 bolt. Got a steady hand ? cut a key way with a 4" grinder and a 1/16" cut off wheel....OR take crank to machine shop they'll cut one on a vertical mill.....old dog

 

[Poboy kartman]

yeah... i was sitting in the garage thinking about what to do all after noon ..

predator 212 went through my head but the things i dont like about it is everyone has one, and that dont sound as hot roddy as my flat head..(i know you can mod it but idk...)

also thought of trying to do a shifter cart with a dirt bike motor, even though it doesnt sound aggressive it will be fast

---------- Post added at 11:42 PM ---------- Previous post was at 11:41 PM ----------



the set screws aren't "setting" any more they slip then the crankshaft starts to spin freely... my plan was maybe to drill holes a little deeper into the shaft so they set screws can go into the holes ... since i dont care about the motor anymore .

NO WAY!!! Drill shallow holes and blue Loctite the set- screws, and NOTHING is going anywhere!!!

TAKE IT TO THE BANK!

Ummmm.....( Of course, that's ALSO what I do with a sinking boat.)

 

[horror_fan]

I like the sound of a briggs too. Drill hole all way thru & use a grade #8 bolt. Got a steady hand ? cut a key way with a 4" grinder and a 1/16" cut off wheel....OR take crank to machine shop they'll cut one on a vertical mill.....old dog

thanks ol dog

 

[OzFab]

Drill hole all way thru & use a grade #8 bolt.

I don't suggest that, too big of a hole will weaken the entire shaft...

NO WAY!!! Drill shallow holes and blue Loctite the set- screws, and NOTHING is going anywhere!!!

TAKE IT TO THE BANK!

Which is what I directed you to in post #12...