Yamahafan#1 Posted June 17, 2016 Report Share Posted June 17, 2016 (edited) Hey guys my right cylinder is missfireing and is running weak, Ive made sure its not, The plugs The tors Plug caps Compressions good And ive ive tryed to swap everything to get to the problem to switch cylinders to figure it out but it bustin my balls. Must have taken this shees carbs of 20 LITERALY in the last couple days. She runs okay up in the rpms, but dont low and in mid throttle she hicups pretty bad anddosent run as strong as the left cylinder. Thanks for any help this site has helped me alot in the past. Edited June 17, 2016 by Yamahafan#1 Quote Link to comment Share on other sites More sharing options...
fastbanshee8 Posted June 17, 2016 Report Share Posted June 17, 2016 Pull the stator cover, and check the pick-up gap on both points. It should be .018-.020. Quote Link to comment Share on other sites More sharing options...
Yamahafan#1 Posted June 17, 2016 Author Report Share Posted June 17, 2016 Pull the stator cover, and check the pick-up gap on both points. It should be .018-.020. Ive swaped the plug caps though and nothing happens. Dosent that rule that out ? Quote Link to comment Share on other sites More sharing options...
Larry's Shee Posted June 17, 2016 Report Share Posted June 17, 2016 Ive swaped the plug caps though and nothing happens. Dosent that rule that out ? NOPE !! Banshee uses a wasted spark ignition. Both plugs fire at same time, twice per revolution. As mentioned check pickup gap, if more than few thousands different LIGHTLY sand high one down to make more even. Make sure both are rust free. No goop or oil on pickup coil. May have to remove flywheel and check for rust on stator poles/inside flywheel. Quote Link to comment Share on other sites More sharing options...
Yamahafan#1 Posted June 17, 2016 Author Report Share Posted June 17, 2016 Okay awsome ima try that next, thanks man Quote Link to comment Share on other sites More sharing options...
RIPPIN' IT UP Posted June 17, 2016 Report Share Posted June 17, 2016 Check the choke tube between the carbs? Sent from my Z6 using Tapatalk Quote Link to comment Share on other sites More sharing options...
Larry's Shee Posted June 18, 2016 Report Share Posted June 18, 2016 So it runs fine at mid to high RPM, misses at low to mid ?? Could be weak reeds Quote Link to comment Share on other sites More sharing options...
Yamahafan#1 Posted June 18, 2016 Author Report Share Posted June 18, 2016 So it runs fine at mid to high RPM, misses at low to mid ?? Could be weak reeds Okay sweet thanks for the help guys Quote Link to comment Share on other sites More sharing options...
Yamahafan#1 Posted June 18, 2016 Author Report Share Posted June 18, 2016 Think i figured it out its eaith the tang on the float or the slides are out of sync Quote Link to comment Share on other sites More sharing options...
Yamahafan#1 Posted June 19, 2016 Author Report Share Posted June 19, 2016 (edited) Nevermind i didnt figure it out LOL. But it did get a little better, i think i just need to keep messing with the float hieght. Edited June 19, 2016 by Yamahafan#1 Quote Link to comment Share on other sites More sharing options...
Yamahafan#1 Posted June 19, 2016 Author Report Share Posted June 19, 2016 Just so everything is clear, the right cylindrs is running weaker and it hicups a little bit on my shee. It did it awile a then it went away. And now that cylinders running werid again and its not going away, I have tryed:; Swaping plugs Plug wires Carb floats Tors and unpluged it Synced carbs with windows on the side Made sure they open at the same time Ive swaped everything from one carb to the other multiple times, This is blowin me, Thanks for any input. Quote Link to comment Share on other sites More sharing options...
RIPPIN' IT UP Posted June 19, 2016 Report Share Posted June 19, 2016 Ive swaped everything from one carb to the other multiple times, What exactly did you swap from one to the other, Jets, float & valve ok to swap. Bowls & slides swapping will make it worse. Make sure there is no leaks between the carby and cylinder. Beg, borrow, or steal a leak down kit. when you do that it will also check confirm the integrity of your crank seals. Or you could make a kit & have it for future jobs. Quote Link to comment Share on other sites More sharing options...
Yamahafan#1 Posted June 19, 2016 Author Report Share Posted June 19, 2016 (edited) What exactly did you swap from one to the other, Jets, float & valve ok to swap. Bowls & slides swapping will make it worse. Make sure there is no leaks between the carby and cylinder. Beg, borrow, or steal a leak down kit. when you do that it will also check confirm the integrity of your crank seals. Or you could make a kit & have it for future jobs. Yesi just changes jets and floats ect, I know not to swap slides,the litle shiny mark that u line up with the windows on the carbs wont match cuz there on different sides of the slide. And ive been thinking about a leak down test, ima look up how to make on and see if i can throw it togeather Ive alos check compression 117psi each cylinder. All stock shee by the way PS, what different anout float bowls. Edited June 19, 2016 by Yamahafan#1 Quote Link to comment Share on other sites More sharing options...
RIPPIN' IT UP Posted June 19, 2016 Report Share Posted June 19, 2016 The left bowl has the pick up for the choke the right does not. the right carby gets its fuel from the left via that cross over hose. (the short hose between the carbys inline with the choke knob) make sure that h0se is on properly & has no cracks or splits. Quote Link to comment Share on other sites More sharing options...
Yamahafan#1 Posted June 19, 2016 Author Report Share Posted June 19, 2016 The left bowl has the pick up for the choke the right does not. the right carby gets its fuel from the left via that cross over hose. (the short hose between the carbys inline with the choke knob) make sure that h0se is on properly & has no cracks or splits. Okay i do have the hose for the choke all good and it has no cracks but i might have the bowls mixed up fersure. I think ima try swaping thoughs Allready taken the carbs off 40 times mis well do it again lol. Thanks man Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.