Tech Support Forum - View Single Post - john deere 445 kawasaki 22 hp backfires at full throttle

**octaneman** · 06-20-2009, 07:22 AM

Hi wannabamechanic

The dieseling effect comes from timing being to far advanced and the engine RPM is set too high. Reset the timing and lower the RPM's on the fast idle. Check the choke and see if it works properly also see if there is no vacuum leak coming from the intake gasket. Does it backfire from the intake or exhaust ? If it's coming from the exhaust you may be running too lean if it backfires through the intake it's the timing.

06-20-2009, 07:22 AM	#2 (permalink)
octaneman Mentor Home Support, Gearhead Automotive Center Join Date: May 2009 Posts: 545 OS: WINXP	Re: john deere 445 kawasaki 22 hp backfires at full throttle Hi wannabamechanic The dieseling effect comes from timing being to far advanced and the engine RPM is set too high. Reset the timing and lower the RPM's on the fast idle. Check the choke and see if it works properly also see if there is no vacuum leak coming from the intake gasket. Does it backfire from the intake or exhaust ? If it's coming from the exhaust you may be running too lean if it backfires through the intake it's the timing.