Help - OS FS-52 Idle Problem  
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All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Glow Engines >> Help - OS FS-52 Idle Problem
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Help - OS FS-52 Idle Problem - 6/4/2002 3:44:37 PM   
Richard L.



Posts: 8775
Joined: 7/28/2002
From: Redmond, WA, USA
Status: offline 		I broke in my OS FS-52 Surpass engine very carefully per OS instructions using 10% nitro and 20% castor/synthetic oil content. Now the engine sounds great above half throttle and has great mid range and top end power. However, I cannot get it to idle smoothly around 2000 rpm. The lowest I can get it down to is around 2500 rpm. Even at that speed, it idles roughly and wants to die. It also makes this weird knocking noise at idle. My friend has a Thunder Tiger F-54S, and his also makes a knocking noise at idle. Do all four stroke motors make that noise? I've checked the valve clearances, and they are within specs. Any ideas on how to get my OS FS-52 to idle smoothly? Thanks.
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All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Glow Engines >> Help - OS FS-52 Idle Problem
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