Mike'sHorseBarn 3,652 #1 Posted August 1 Picked this 312-8 up this morning! Might be the nicest original one I ever bought! Has a bagger and a plow thats just as nice. Got it running after a carb clean and new fuel lines. I was just gonna flip it, but I don't know about that now. It works pretty great! 20260801_170738.mp4 21 Share this post Link to post Share on other sites
JCM 11,345 #2 Posted August 2 Big 312-8 fan here. Have had mine for 37 years. I can mow my yard 3 times compared to once with my Kohler Twins on the MPG. Good luck with it. 4 Share this post Link to post Share on other sites
ebinmaine 80,188 #3 Posted August 2 That 12 HP is a fantastic worker. Some of em just have to stay around. 1 Share this post Link to post Share on other sites
MainelyWheelhorse 3,034 #4 Posted August 2 Nice score on that 312-8. Mine is my go to mowing machine, so I definitely agree with you, 4 1 Share this post Link to post Share on other sites
Mike'sHorseBarn 3,652 #5 Posted August 2 One thing I don't like about the carburetor on this though is that it has a fixed main jet. Didn't know they had those 40 years ago. My 314 is adjustable. 1 Share this post Link to post Share on other sites
Retired Wrencher 6,909 #6 Posted August 2 Very nice Mike. Enjoy the tractor! 1 Share this post Link to post Share on other sites
ebinmaine 80,188 #7 Posted August 2 8 hours ago, Mike'sHorseBarn said: One thing I don't like about the carburetor on this though is that it has a fixed main jet. Didn't know they had those 40 years ago. My 314 is adjustable. Check the top & bottom hole 🕳 for the throttle shaft. If it's not loose it'll rebuild and clean up well. If the shaft is loose in the bore - toss the carb and replace. I wonder what, if any, adapting needs doing to use the fully adjustable carb? Share this post Link to post Share on other sites
Bill D 3,070 #8 Posted August 2 (edited) 15 hours ago, Mike'sHorseBarn said: One thing I don't like about the carburetor on this though is that it has a fixed main jet. Didn't know they had those 40 years ago. My 314 is adjustable. I think that may be a Walbro carb. Had one on the 1988, 312-8 I sold last year. Any pictures of the carb? Tried to replace it with a Kohler carb before I sold it, but the air cleaner plate was different. Edited August 2 by Bill D 3 Share this post Link to post Share on other sites
peter lena 10,000 #9 Posted August 2 @ Mikes Horse Barn, great pick up on that ! regular for me on any pick up . is to , quickly / easily get a paint save going on ? like a penetrating oil spray down , let it soak in a few days , then wipe it down with a , soft clean cloth , next stage , rubit down with clean miner oiled cloth , that paint condition , should pop right thru , any grunge . preserving / enhancing what you have is , is vital , after that , a clean mineral oiled cloth rub down , will keep it looking fresh . those plows , really really come to life , with QUADRANT SWING ACTION , DETAILING , SQUESE LEVER START, DETAILING , very easy , luck you ! pete 2 Share this post Link to post Share on other sites
Mike'sHorseBarn 3,652 #10 Posted August 2 1 hour ago, ebinmaine said: Check the top & bottom hole 🕳 for the throttle shaft. If it's not loose it'll rebuild and clean up well. If the shaft is loose in the bore - toss the carb and replace. I wonder what, if any, adapting needs doing to use the fully adjustable carb? Its good and tight. I'll grab a pic of of it. If I was going to replace it I'd have to find a other walbro. I believe the correct one would be a walbro #52 1 Share this post Link to post Share on other sites
953 nut 68,327 #11 Posted August 2 So you bought the seat and got the rest for free. BUT< YOU MAY HAVE OVERPAID. 1 4 Share this post Link to post Share on other sites
Mike'sHorseBarn 3,652 #12 Posted August 2 13 minutes ago, 953 nut said: So you bought the seat and got the rest for free. BUT< YOU MAY HAVE OVERPAID. That spot is white paint over the red, I'd live to know what happened there lol 1 2 Share this post Link to post Share on other sites
kpinnc 18,868 #13 Posted August 2 6 hours ago, ebinmaine said: I wonder what, if any, adapting needs doing to use the fully adjustable carb? So long as the choke and throttle shaft tabs are the same it's a direct swap. I've swapped the shafts before just to make them an easy changeover. 2 Share this post Link to post Share on other sites
Beap52 2,429 #14 Posted August 2 That machine was certainly someone's pride and joy. 3 Share this post Link to post Share on other sites
Brockport Bill 2,449 #15 Posted August 3 bought the 312-8 new in '89 - with the 37 deck and bagger - plus the plow, tiller, cart, roller etc - amazing machine ! I often wonder if the 312 was model WH made the most of and sold most? Seems to be so common across the WH universe ? 1 2 Share this post Link to post Share on other sites
ebinmaine 80,188 #16 Posted August 3 4 hours ago, Brockport Bill said: sold most Seems as though the 12 HP of many year models was the bread n butter. 2 Share this post Link to post Share on other sites
Handy Don 17,260 #17 Posted August 3 12 is definitely a sweet spot for price/performance. 2 Share this post Link to post Share on other sites
sqrlgtr 3,669 #18 Posted August 3 1 hour ago, Handy Don said: 12 is definitely a sweet spot for price/performance. + fuel economy to power ratio 1 Share this post Link to post Share on other sites
