Surging, no acceleration. B&G Fun Power 5HP

[daveofds]

Partial rebuild in progress. Replaced belt drive, primary sprocket, throttle cable, made adjustments for steering and too light front end. (Toe out front wheels, added weight to front of cart and lowered tire pressure.

Got the kart running yesterday. Started OK, died several times. Seems to run better with choke on lightest setting. Rode for 20 minutes.

Today…verry difficult to start. Shot a lot of carb cleaner in the intake to get it started. Idles rough now, surges, will not accelarate. Dies easily, fethering choke to keep running at idle. Applying throttle seems to have no effect. I did make sure the governor screw was locked all the way clockwise before riding it yesterday. With throttle wide open, just surges and low rpm. I have a video with sound but unable to attach due to restrictions.

 

[Denny]

Clean the carburetor. Sounds plugged up.

 

[Whitetrashrocker]

Or an intake leak.
Its getting too much air and not enough fuel to idle. Thats why it likes the choke on.

 

[Grizzlymi]

Yeah, clean the carb and check for air leak around the intake. Make sure gaskets are good.

 

[daveofds]

A new carb cost less than $25. But I can buy a whole new engine for less than $140.

https://www.amazon.com/gp/product/B098JLDZ3D/ref=ewc_pr_img_1?smid=A3FP93UKJYWCVU&th=1

Anyone ever put one of these on their kart? Reviews I've read say it is one step below a Predator in torque, smaller gas tank, and no idle adj on carb. Carb can be replaced.
A new predator is <$159 at Harbor Freight. I see a lot of these engines on Karts online.

6.5 HP (212cc) OHV Horizontal Shaft Gas Engine, EPA

Amazing deals on this 6.5Hp (212Cc) Horiz Shaft Gas Engine at Harbor Freight. Quality tools & low prices.

www.harborfreight.com

212 and 224 cc. 224 is $179.

 

[Whitetrashrocker]

And cleaning the carb costs pennies. A new gasket kit is a few dollars.

 

[Thepartsguy]

Predator 212cc is better more powerful and more reliable in every way.

Will actually start every time you want it to and can be hopped up for cheap and won’t kill reliability.

Briggs are crap but that won’t stop me from running them. 99% of people do not want to deal with a Briggs cause of how finicky they are just to start.