B&S 3.5 hp, throttle spring

[laker_42]

Need help with B&S 3.5 hp, throttle spring setup

I just picked up another go kart with an older briggs & stratton 3.5 hp engine. I can't figure out where to hook the spring from the throttle to. I attached a picture of the spring and the direction I think it is supposed to go but don't see anything to hook to.

ANy ideas?

Thanks,
john

 

[r97]

drill another hole in that throttel plate next to the throttel linkage and hook the spring to wherever that other spring is

 

[laker_42]

So you are saying to have it go back across the top of the throttle to hook back in where the other spring is? Wouldn't having the spring go that way cause it to pull the throttle out of the idle position?

Sorry if I am asking an obvious question. I am still a newbie at this stuff.

Thanks,
John

 

[Russ2251]

This may sound too obvious to some...but,
GET THE ENGINE MANUAL
No guess work, No BS... and no drilling.

 

[laker_42]

That would be way too easy Russ! I am thinking about ordering one but it wouldn't get here until next week or later so i thought someone may have an idea so I could get it up and running sooner.

 

[Russ2251]

As Ian Andersen once said "Nothing is easy".
Patience gets it right.
I am a perfectionist in what I do...
Without the factory manuals, one can only guess.

 

[laker_42]

Can you recommend a good place to purchase repair manual from online?

 

[r97]

just drill a hole next to the linkage on the throttel and put one end of the spring in there, then hook the other end of the sping some where in the top end of the pic. and it should pull the throttel bak to idle asuming the way you were thinking of setting it up would bring it back to idle

 

[Russ2251]

Can you recommend a good place to purchase repair manual from online?

http://www.briggsandstratton.com/

 

[r97]

http://www.briggsandstratton.com/maint_repair/buy/details.aspx?pid=270962choose what you think is best but i still dont see the need for $20 and waiting one week for it to get to you. of cousre thats just what i think, like i said choose what you want

 

[anderkart]

ANy ideas?

Your engine may not have originally had its throttle return spring connected directly to the carbs bellcrank like the one your trying to install. The original return spring may have been attached to the Governor linkage instead. Take a look at these Briggs carb diagrams for an example: http://www.small-engines.com/bsgovernors.html

I cant tell for sure from your pic, but It looks like your original throttle and Governor arrangement is still all in place. Does your engine Idle too fast now?

 

[laker_42]

It won't idle at all right now. It will only stay running with the throttle wide open.

I didn't realize it had a governor. I wondered but didn't know where it was. I think figure 49 from the link you gave looks like my setup. I will have to take the laptop out to the barn to see for sure.

Thanks,
John