How do I Hook a Throttle Cable to a 3.5 HP Briggs?? HELP!

#1
Another rookie posting! I bought a go kart kit from Go Kart Galaxy. I bought a 3.5 HP Briggs, 3/4" horizontal shaft from Small Engine Warehouse, but have been told (after the purchase) that it isn't made for go karts! How do I go about connecting a bullet throttle cable to this engine?? Is it possible? If so can I do it (a rookie) or should someone local be able to? Please help--it will cost a fortune to trade it in for a different engine. Thanks.
 
#2
Who ever said you can't use that engine on a go kart doesn't know what they're talking about.

Do a search on here for hooking up the throttle. There are many ways to do it.
 

Motra

Active Member
#3
Briggs has a kit that comes with the brackets, return spring, cable mount, etc. It's cheap, easy to install and has everything you need. If you want, I'll dig up the part number for you.
 
#12
NO, you need to hook your cable to side of the carburetor.. Clamp the sheeth down firm in place, where the designated cable clamp mount thing is...

The cable itself attaches to the throttle linkage thing like shown in the 3.5 horse power thread.. You'll have to take the air filter off to see what you're doing.. If it's the newer style engine it looks and works differently...

But it all works on the same principle...

You just gotta figure out where the throttle is pulling back on the governor stuff, and hook your cable to that... A lot of the newer throttles are a black plastic slider knob.. You'd have to unhook that thing where the linkages are hooked to the governor stuff....

clamp the rigid outer sheath of your cable to the side of the carb, then attach the soft wiggly cable itself to where you UN-hooked the original throttle....

Rig a throttle cable return spring somewhere to pull the cable and twister back to zero when you let off of fall off from the bike...
 
#13
Restore Kid...thanks for all the words of wisdom! I'll give that a shot, but reserve the right to ask more detailed questions. I might need to post a photo with the air filter and muffler removed for clarity so you can show me exactly what to do, but this is a great start. By the way, this is a go kart so there's no twist, but concept is same I believe.
 

Motra

Active Member
#14
If yours has the bracket under the tank that has a square plastic piece that moves back and forth in a groove, then this kit will work. I've used the kit on both 3.5 and 5 HP engines.
 
#17
Ohhhhhhhhhhhhhh

Restore Kid...thanks for all the words of wisdom! I'll give that a shot, but reserve the right to ask more detailed questions. I might need to post a photo with the air filter and muffler removed for clarity so you can show me exactly what to do, but this is a great start. By the way, this is a go kart so there's no twist, but concept is same I believe.
You've got one of the super modern bowl carb engines.. Those things run like a bitch.. :drool: I had to put a Tecumseh carb on one for a buddy because the carbs aren't that great.. But the Tec carbs bolt right on and damn near just work with very little doing... It made his Industrial Plus 5 horse a friggin NIGHTMARE on that little 4 inch wheeled Manco.. His 50 pound kid rips trenches as long as the yard... I took it down the road and pushed it wide open beyond the governor and scared myself to death.. Stock motor.. :laugh:

Yeah your's is different.. You have to rotate that big huge plate, (we'll call the wiggle plate) with the wing nut on it... If that big huge plate won't move, you gotta loosen the wing nut a 1/2 turn or whatever it takes so it will move freely... Right now it is pictured throttled wide open, then the wing nut screwed tight, to KEEP IT AT wide open...

Your second picture, of the engine sideways...

In that pic you can see a limiter screw that only allows you to throttle it up so far, then it stops when it hits the screw... Right now the tab on your wiggle plate is jammed tight to the end of the screw...

As you look at the engine bolted to the Kart, that limiter screw is running parallel to the earth and engine plate and stuff....

If you look at that screw, JUST ABOVE IT like an inch or so, is the big squared off bracket thing you're looking for... Your cable is going to bolt down on that thing, VIA the cable clamp and little screw they didn't give you :glare:

Then, it runs parallel to the screw and engine plate and earth.... Runs inwards towards the rear of the engine, and attaches to your big huge wiggle plate.....

I WANT TO SAY there is a tab on the big huge wiggle plate, with a per-drilled hole, where your cable attaches and pulls on, but is shaded out in the picture.....

Right now your engine is locked tight at wide open governed 3,600 rpms.....

You need to, unscrew the wing nut 1/2 turn so you can move your great big huge wiggle plate back down to idle.... Clamp your cable down (after finding a clamper :glare:)

Figure out how long your exposed cable needs to be (pretty long) then attach that end to the hole in the wiggle plate.... That will allow you to pull on the cable, and throttle the engine up....

THEN you need to attach a return spring, to pull it back to zero idle when you let off...

In your LAST picture, you can see the two little bent over tabs, with a groove that keeps a spring from popping off... You nee to ad a return spring between THESE TWO tabs, and it will pull back to zero....

When all assembled, I'm pretty sure the return spring is running vertically to the world, right up front of the whole system, where you can read turtle rabbit...

But basically you just need a spring anywhere, that pulls your wiggle plate back to zero, and WILL NOT!!!! pop off, bouncing around the yard....

If yours has the bracket under the tank that has a square plastic piece that moves back and forth in a groove, then this kit will work. I've used the kit on both 3.5 and 5 HP engines.
Ohhhhhhhhhh YEAH I see what you're saying.. 3.5 with the slider knob.. I had not considered that, as that's an odball that ya don't see much.....

Yeah, that will work if ya had a slider on your gastank..
 
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#20
Been searching all day for a fix. I just found that 692316 Kit and had a question. Does that kit attach to the square plastic piece or does it get removed? This is currently the situation i have. Just stuck this 5hp Briggs into a Kart. Thanks for the help. Joe Governor (2).JPG
 
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