Burns363R Posted September 19, 2020 Report Share Posted September 19, 2020 I have a Banshee that I aquired, put new top end in and have been through the carbs 4 times. Bike will not start without a spray of either, then i can keep it running, but it wont idle no matter how hard i try to adjust it. partial throttle keeps it running. The left cylinder runs all the time, the right cylinder only seems to pick up and run at higher RPM. Spark is good on both cylinders as is compression. A twisted crank could explain why the right cylinder isnt seeming to fire, and also very hard to start. My jetting is all stock. Actually the entire bike is stock besides decking the head .020". Compression is around 150psi in the right cylinder, and 145 in the left. Im going to try to see if one cylinder is at TDC, if the other is at BDC, but I wanted to ask would a twisted crank cause these issues? Quote Link to comment Share on other sites More sharing options...
375hp banshees Posted September 19, 2020 Report Share Posted September 19, 2020 Not getting fuel @idol...Check Sync, pilot, idol rpm n go from thereSent from my SM-A505U using Tapatalk Quote Link to comment Share on other sites More sharing options...
n2otoofast4u Posted September 19, 2020 Report Share Posted September 19, 2020 Vibrates like CS with twisted crank. Quote Link to comment Share on other sites More sharing options...
375hp banshees Posted September 19, 2020 Report Share Posted September 19, 2020 ^ knows his CS Sent from my SM-A505U using Tapatalk Quote Link to comment Share on other sites More sharing options...
Burns363R Posted September 21, 2020 Author Report Share Posted September 21, 2020 Im not sure how it cant be getting any fuel. I have check/cleaned it several times. Always clear passages. This isnt my first 2 stroke. But for clarification, i blow air from the back of the carb, and have air coming out the pilot jet. If i plug the pilot jet, the air will come out the port on the front side of the carb in the bore. So its clear. Stock jets. I believe they are 25's. Wouldnt a slightly twisted crank throw the timing of the spark off on the right cylinder? Isnt each crank lobe balanced to the piston/rod assembly. so individually they would still be balanced. The only imbalance may be in the forward/back direction of the throws? I havent gotten a chance to verify TDC vs BDC on the two cylinders. What is CS? Quote Link to comment Share on other sites More sharing options...
375hp banshees Posted September 21, 2020 Report Share Posted September 21, 2020 Because it Has compression and it starts when you Ether itSent from my SM-A505U using Tapatalk Quote Link to comment Share on other sites More sharing options...
375hp banshees Posted September 21, 2020 Report Share Posted September 21, 2020 5 hours ago, Burns363R said: What is CS? SKEETER to the repair forum...SKEETER to the repair forum Quote Link to comment Share on other sites More sharing options...
SKEETER Posted September 22, 2020 Report Share Posted September 22, 2020 COCKSUCKER.....ya big dummy Quote Link to comment Share on other sites More sharing options...
fixitrod Posted October 11, 2020 Report Share Posted October 11, 2020 Have you tried swapping left and right spark wires to see if the other cylinder fires better? They both fire on the the "on and off" stroke. Verify no air leaks by spraying starter fluid around carbs and reeds. Verify no broken reeds. Verify choke tube is between carbs. Verify slides are synced Veify main and pilot jets are tight Just trying to think of simple things first. 1 Quote Link to comment Share on other sites More sharing options...
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