Engine Problem

[JROY82]

I have an older 5 hp briggs flatty. It runs great at idle and if I throttle it at the carb however if I throttle it throught the governor it randomly dies like I hit the kill switch. Could it be something with the governor? I have pulled the kill switch wire to make sure it wasnt shorting and nothing changes. Any ideas are greatly appreciated.

 

[STreetKArt]

i have no idea it could be the governor
but then it could be the carb

 

[Russ2251]

Is carb adjustable? If so, try to richen mixture.

 

[STreetKArt]

yea it is adjustable but i dont know if that would be the problem

 

[Kenny_McCormic]

Its a flatty, dont need the gov.

 

[Russ2251]

yea it is adjustable but i dont know if that would be the problem

You said "Ideas would be greatly appreciated".
Only one way to find out. Just make a mental note of where they are set so that if you do change adjustment you can change it back to original setting.

 

[JROY82]

I have tried to adjust the carb yes but nothing changes. Right now it is on a pocket rocket frame and sometimes I can throttle it up with the drive wheel up and it will run fine but as soon as I try to ride it, it will die. Its not like a sputter and die either, it just dies literally like I flipped the switch. Someone told me maybe a sticking valve but I pulled the head and everything was relatively clean. I'm lost. I will also add that it is a magnetron ignition no points.

 

[Russ2251]

Try to bring throttle up slowly to maximum to see if if it still craps out. Do this while under a load. Also, when it dies, if you back off on throttle does it continue to run? Or does it completely stall?
Sounds like a restriction in fuel supply.

 

[oscaryu1]

If adjusting your carburetor screw does nothing, something's wrong. It should die (too lean), or start chugging/stall (too rich).

If nothing... ehh... check it out. I've had that screw point break on me before. Noticed that before I started it though.

 

[JROY82]

When I said carb adjusting did nothing I meant it didnt change the stalling. If I try to back off the throttle it still stalls as well. I havent cleaned the tank out, maybe the screen on the carb feed is getting blocked?

 

[Russ2251]

maybe the screen on the carb feed is getting blocked?

Sounds likely.

 

[JROY82]

I am removing carb and tank and cleaning them tonite hopefully this works.

 

[BradenM]

Good luck!

 

[JROY82]

Well my made in china chain broke so now I am waiting on new chain so I can put a load on the engine to test. This project is going to be my demise.

 

[Russ2251]

Second or 3rd time I've read posts about chain breakage.
What's going on here?

 

[r_chez_08]

are some chains just crap!

 

[JROY82]

Well I will take some blame on this one it was rusted pretty bad so I soaked it for a week and loosened it up but I think the rust did its damage. Plus its #25. The one size that the tractor stores dont carry.

 

[Leem1994]

try a motorcycle shop.

 

[r_chez_08]

ebay???

 

[r_chez_08]

http://cgi.ebay.co.uk/25-1-4-Pitch-...14&_trkparms=72:1683|66:2|65:12|39:1|240:1318

http://cgi.ebay.com/ebaymotors/Mini...itemZ170270252082QQptZOtherQ5fVehicleQ5fParts