surging

Anyone know anything about small engines here? :) This mower sat for 5+ years. New battery, fresh gas, carb kit from OldMiniBikes, new plug. Starts but will only run at 3/4 choke or if I hold my hand over the carb throat, blocking most of the air. BUT.... it runs ok if I manually open/close the...

after getting my bike modded enough for gratuitous high rpm pulls, im noticing a surging at high rpm. Even cut out altogether once. Im running arc rod, arc FW, mamba jr cam, 26lb springs, and a .038 jet in the carb. Im wondering if ive outgrown the carb and its time to upgrade? seems to do fine...

Hi guys. My Doodlebug, (equipped with a '50's vintage Briggs and Stratton 2 hp L-head) has recently developed a surging problem. The problem started when I let the neighbor kids borrow it last night, they suggested it might be from a bad tank of gas. Today, I dumped the gas, tightened and...

So I just got my latest bike running sort-of Pretty sure its a homebuilt but someone did a nice job on it. It has a 4HP POWR-KRAFT Briggs motor and it came free with some 20 Year old gas/sludge anyone pulled the tank de-rusted it, pulled the carb cleaned all the jets and holes I could...

Hi just got my first 6.5 my question is at full throttle it would surge did some adjusting now at from dead stop it will pull hard at full throttle till full speed then stop pulling then cruise right on but. Is this normal thanks

I have a 5.5 Intek on a tiller a friend gave me because it wouldn't start. A quick clean of the carb and I got it started. However the governor is constantly surging the engine at low speed, full throttle or anywhere in between. It's the worst when the choke is wide open. If I choke it way...

I am new to your forum and am looking for help.Not related to minibikes,but using HF 11 hp engine on a log splitter.My issue is right out the box my rpms fluctuate,with no load,constantly surges.I can watch governor rod constantly moving.I s there some adjustment i could make.possible fuel...

I have been messing with it all day. It has the Tecumseh 5HP motor with adjustment screws also. Any ideas on what I can do to fix this? Also, is it a complex procedure to remove the governor? What are your thoughts on removing it on this motor?