fleury_xlt Posted August 14, 2010 Report Share Posted August 14, 2010 Hi, just rebuild my engine from bottom to the top.... After every parts was back in place, then everything was cleaned, my Banshee start after 3 kicks. Then I realize that there was so much smoke and oil that was not burned. I've dropped my gas from the tank and made a new ratio oil/gas 1:40. That move dind't change anythings. My new mods from the last build up are : Head milling, timing +4 (degree key). My opinion could be that there a leak somewhere in the top end. What could it be ? Quote Link to comment Share on other sites More sharing options...
Ruko Posted August 14, 2010 Report Share Posted August 14, 2010 Could be a crank seal... did you split the cases or just do the top end? Quote Link to comment Share on other sites More sharing options...
fleury_xlt Posted August 14, 2010 Author Report Share Posted August 14, 2010 Could be a crank seal... did you split the cases or just do the top end? I Split the case, but changed every seal on this engine. Quote Link to comment Share on other sites More sharing options...
ECshee Posted August 14, 2010 Report Share Posted August 14, 2010 I Split the case, but changed every seal on this engine. that sounds rough Quote Link to comment Share on other sites More sharing options...
Larry's Shee Posted August 14, 2010 Report Share Posted August 14, 2010 Excess assembly oil or crank seal on backwards? Has trans level dropped? Leakdown test? Quote Link to comment Share on other sites More sharing options...
PACIFIC NW BANSHEE Posted August 15, 2010 Report Share Posted August 15, 2010 exhaust o-rings???????? Quote Link to comment Share on other sites More sharing options...
GNR101 Posted August 15, 2010 Report Share Posted August 15, 2010 Hi, just rebuild my engine from bottom to the top.... After every parts was back in place, then everything was cleaned, my Banshee start after 3 kicks. Then I realize that there was so much smoke and oil that was not burned. I've dropped my gas from the tank and made a new ratio oil/gas 1:40. That move dind't change anythings. My new mods from the last build up are : Head milling, timing +4 (degree key). My opinion could be that there a leak somewhere in the top end. What could it be ? mine has been like this since i put cpis on my shee.. Quote Link to comment Share on other sites More sharing options...
bansheesandrider Posted August 15, 2010 Report Share Posted August 15, 2010 (edited) exhaust o-rings???????? The lack of exhaust O rings will not make it smoke. My vote is a crank seal improperly installed or damaged during assembly. A leakdown test should show this. Edited August 15, 2010 by bansheesandrider Quote Link to comment Share on other sites More sharing options...
PACIFIC NW BANSHEE Posted August 15, 2010 Report Share Posted August 15, 2010 The lack of exhaust O rings will not make it smoke. My vote is a crank seal improperly installed or damaged during assembly. A leakdown test should show this. Oh ok well just a idea just have had this problem before just like to look at things from a different angle . Quote Link to comment Share on other sites More sharing options...
fleury_xlt Posted August 15, 2010 Author Report Share Posted August 15, 2010 Oh ok well just a idea just have had this problem before just like to look at things from a different angle . Could it be an improper jetting due the change of the combustion chamber by milling the head, because, when I turn my gas cup off, the engine begin to idle correctly ?!? I only have few mods like : Pro Circuit pipe, Boost bottle, open box with K&N, timing +4, and head milling. My main is a 280, my pilot is a 27.5 , Elevation is 78 M (256 ft.) Quote Link to comment Share on other sites More sharing options...
fleury_xlt Posted August 15, 2010 Author Report Share Posted August 15, 2010 Just arrived to the garage and change the needle clip to the top one on my both carb to get my engine more lean. I think my problem is jetting. Now, I can get more RPM, but my plug still black of oil. I'll try to change my pilot and my main. Witch jet could I put ? Quote Link to comment Share on other sites More sharing options...
fleury_xlt Posted August 15, 2010 Author Report Share Posted August 15, 2010 Anyone Please ? Quote Link to comment Share on other sites More sharing options...
fastbanshee8 Posted August 16, 2010 Report Share Posted August 16, 2010 If you've got pipes on it, leave the 27.5 pilots in the carbs, and set your air mixture screws on both carbs at 1.5-2 turns open. Make sure both are adjusted the same. It will take it about 20-30 seconds to adjust. If it's running good, and is still smoking bad, and/or dripping oil from the silencers, it's probably time to repack them. Quote Link to comment Share on other sites More sharing options...
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