Irv 115 #1 Posted May 3, 2008 Hey Guys, can you help me with this. The rpm's on my briggs twin on my 216-5 fluctuate up and down unless I pull the choke part way out. I've tried adjusting the fuel mixture but that doesn't help. I apreciate the help. Irv Share this post Link to post Share on other sites
nylyon-(Admin) 7,882 #2 Posted May 3, 2008 Have you run any carburetor cleaner through it or cleaned the carb? It may be heloful to pick up some Seafoam and run it through. My 416 had a fluctuating idle when cold, cleaning out the carburetor bowl and running Seafoam through it, and a tune up fixed it. Share this post Link to post Share on other sites
