Intek 6.5HP surging

lego_man · 04-18-2009, 07:35 PM

Hi, Hopefully someone can give me a clue on what to try next. I have a tiller with an Intek 6.5HP engine that starts and idles fine but has a hard time at high speed or under load. If I give it full throttle it surges. The throttle opens and closes, back and forth. I've cleaned fuel/tank, new plug, changed oil and removed and clean carb. How can I tell if the governor linkage is working? What should I look at next?

Thanks, Todd.

k2skier · 04-19-2009, 12:10 AM

If you haven't "rebuilt" the card with an overhaul kit, at least a new inlet needle and seat, than that's what you have to do next. With the fuel so bad nowadays, the seat swells up and pushes the float to a lean position, and the only way to correct it is with a new seat. Float should be close to level, and if it's high when the carb is inverted, then it is too lean.

04-18-2009, 07:35 PM	#1 (permalink)
lego_man Registered User Join Date: Apr 2009 Posts: 1 OS: Vista	Intek 6.5HP surging Hi, Hopefully someone can give me a clue on what to try next. I have a tiller with an Intek 6.5HP engine that starts and idles fine but has a hard time at high speed or under load. If I give it full throttle it surges. The throttle opens and closes, back and forth. I've cleaned fuel/tank, new plug, changed oil and removed and clean carb. How can I tell if the governor linkage is working? What should I look at next? Thanks, Todd. Last edited by lego_man; 04-18-2009 at 07:36 PM. Reason: spelling

04-19-2009, 12:10 AM	#2 (permalink)
k2skier Registered User Join Date: Sep 2008 Location: Oregon Posts: 313 OS: XP Home-SP3 My System	Re: Intek 6.5HP surging If you haven't "rebuilt" the card with an overhaul kit, at least a new inlet needle and seat, than that's what you have to do next. With the fuel so bad nowadays, the seat swells up and pushes the float to a lean position, and the only way to correct it is with a new seat. Float should be close to level, and if it's high when the carb is inverted, then it is too lean.