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Showing results for tags 'surging at wot'.
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@PeacemakerJack @WHX24 @Achto @953 nut @ebinmaine and anybody else who wants to take a stab at this as I am sure a Kohler is a Kohler no matter what color/brand tractor it sets in ... Back story I bought a group of IHCC just to get the 1 I wanted (126 3rd lowest production) then my son wanted a 1200 like my dad's so I let him have the best 1 of 2 to tinker and learn on, found the original engine had a broken rod so I found him another "running" at idle (I seen and heard in person before buying) K301 out of another CC and let him pull the blown engine and install the new 1 on his own, after installation he couldn't get it to run past idle missing and spattering plus carb leaking, smoking a little bit, then I bring back home and start working on it fixing other mechanical issues then jumped into the engine issues. As follows, wrong coil and a weak spark so all new components set points ran but would NOT really rev up smoked but not to terribly when reviving up but popped and sputtered, off came the head one small spot on the gasket near the exhaust valve looked to be leaking and upon further inspection the exhaust valve was pitted bad (burnt?) so I removed and tried to hand lap didn't work so had the blown engine on hand and stole the good exhaust valve and lapped it and the intake in decently, new head gasket after after cleaning and "planing" the head's gasket surface put it all back together, got it running and warmed up, retorque bolts button that up move onto the carb issues after 2 brand new "China" replicas and cleaned the original other than leaking fuel bowls no matter how I adjust the mixture screws it will idle damn near "perfectly" but getting it rev to WOT without missing popping and sputtering was damn near impossible, so here I am I got it to rev up to WOT without to much much fanfare but now it it will surge (governor moving back and forth ever so slightly unlike idle no movement at all) then will calm down then sputtering like starving for fuel (all 3 carbs, new tank petcock and fuel line , it is gravity fed) sitting still or driving around. After its warm it starts on the first bump of the key idles like new and revs up to WOT but misses/sputters/ surged there... So what else should I do, more/less point gap (now .020", can't pull the blower housing without removing engine "that ain't happening again such a PITA on these wide frame CC to find and paint the timing marks that I tried looking for through a 3/4" peep hole for an hour today)? I set checked and rechecked valve lash 3 times .009" In and .018" Ex... A couple videos to help as well. Sorry for the long post but I'm trying to give as much info the first time to help solve this debacle. And as most of you know I can build and tune a tight SBC this should be a piece of cake. 20201018_144036.mp4 20201129_150743.mp4
