seven 202 #1 Posted November 29, 2020 I've got a k321 here and it runs awesome lots of power etc. I had the head off awhile back and all i really did was lap the valves set the valves new head gasket and put back together. The piston and sidewalks looked good and there wasn't any side to side play . It smokes a lot when you go to start it up but then goes away . Maybe I should have gone farther on it I'm not sure rings bore job etc money ? Share this post Link to post Share on other sites
Pullstart 65,006 #2 Posted November 29, 2020 It could be valve guides or rings possibly, but once temperatures rise things expand enough to seal it up. You could try some sea foam in the oil to do a hefty innards cleaning before an oil change, then run Lucas oil additive. 1 Share this post Link to post Share on other sites
JohnD 145 #3 Posted November 29, 2020 Is it blue smoke or black smoke when you start it up? Share this post Link to post Share on other sites
seven 202 #4 Posted November 29, 2020 It's blue as can be ? Share this post Link to post Share on other sites
WHNJ701 4,165 #5 Posted November 29, 2020 Marvel mystery oil Share this post Link to post Share on other sites
peter lena 9,126 #6 Posted November 29, 2020 SEVEN , have had very good results with RISLONE PRODUCTS , https://rislone.com/product/ring-seal-smoke-repair-4416/ the best thing about rislone is that it , CUTS ENGINE VARNISH AND CLEANES OUT OIL FLOW PASSAGES , most important is to put some time on the oil , so it can get hot and break down and flush varnish out. works best with fresh oil so you can see the color change starting , the longer it stays in , till liquid black , is really showing you the crud removal. then do it again , for a more thorough varnish clean , the hotter and longer it runs the more it cleans . this is only my own experience , but the rislone products I have used have transformed the smoothness and running in my kohlers , pete 2 Share this post Link to post Share on other sites
953 nut 58,448 #7 Posted November 29, 2020 6 hours ago, seven said: It smokes a lot when you go to start it up but then goes away I had one that was doing that about fifteen years ago, now it smokes a bit more but is still strong. As long as you have good power I wouldn't mess with it. 6 hours ago, seven said: piston and sidewalks looked good Glad your sidewalks look good. 1 1 Share this post Link to post Share on other sites
Pullstart 65,006 #8 Posted November 30, 2020 11 minutes ago, 953 nut said: Glad your sidewalks look good. saw that too! Share this post Link to post Share on other sites
pfrederi 18,410 #9 Posted November 30, 2020 Older Kohlers with lots of hours smoke on start up the still work... 1 Share this post Link to post Share on other sites
WHNJ701 4,165 #10 Posted November 30, 2020 I had briggs that would smoke like crazy on start up with the engine running strong. Being the tractor is such limited use I didn't see a need to tear it down. I added lucas and it cleared it up. Still running fine Share this post Link to post Share on other sites
seven 202 #11 Posted November 30, 2020 19 minutes ago, pullstart said: saw that too! Good eye Share this post Link to post Share on other sites
seven 202 #12 Posted November 30, 2020 59 minutes ago, peter lena said: SEVEN , have had very good results with RISLONE PRODUCTS , https://rislone.com/product/ring-seal-smoke-repair-4416/ the best thing about rislone is that it , CUTS ENGINE VARNISH AND CLEANES OUT OIL FLOW PASSAGES , most important is to put some time on the oil , so it can get hot and break down and flush varnish out. works best with fresh oil so you can see the color change starting , the longer it stays in , till liquid black , is really showing you the crud removal. then do it again , for a more thorough varnish clean , the hotter and longer it runs the more it cleans . this is only my own experience , but the rislone products I have used have transformed the smoothness and running in my kohlers , pete I will try that for sure 1 Share this post Link to post Share on other sites
