Joeschwab Posted April 7, 2016 Author Report Share Posted April 7, 2016 Yes pulled the reed they look good no cracks or breaks Quote Link to comment Share on other sites More sharing options...
Bennett131 Posted April 7, 2016 Report Share Posted April 7, 2016 Yes pulled the reed they look good no cracks or breaksCan you see gaps through them? Did you screw the plug boots off and cut 1/4 inch off of them? Quote Link to comment Share on other sites More sharing options...
Joeschwab Posted April 7, 2016 Author Report Share Posted April 7, 2016 No gaps and no I did not because if it was a spark plug wire issue it would flip if I swapped the wired Quote Link to comment Share on other sites More sharing options...
sleeper06 Posted April 7, 2016 Report Share Posted April 7, 2016 #1 pressure test on brand new motor #2 another compression test listing both cylinders A few things that pop rite out at it me is ported on 300 mains and 16cc domes. Are you running race fuel? What does the plugs look like? Who ported the cylinders? Have you tried swapping carbs? I have a cpl theories but would like above test results. I've had a bad flywheel cause similar shit once Quote Link to comment Share on other sites More sharing options...
Joeschwab Posted April 7, 2016 Author Report Share Posted April 7, 2016 Did pressure test it is good compression in both cylinders is 150 porting was done buy Duncan racing I'm running race fuel haven't been able to do a plug chop hasn't ran long enough to I haven't tied swapping the carbs Quote Link to comment Share on other sites More sharing options...
sleeper06 Posted April 7, 2016 Report Share Posted April 7, 2016 So it held 6lbs for 6 minutes? Quote Link to comment Share on other sites More sharing options...
Joeschwab Posted April 7, 2016 Author Report Share Posted April 7, 2016 Yes it did Quote Link to comment Share on other sites More sharing options...
sleeper06 Posted April 7, 2016 Report Share Posted April 7, 2016 300 main sounds lean for a Duncan motor. Quote Link to comment Share on other sites More sharing options...
Joeschwab Posted April 7, 2016 Author Report Share Posted April 7, 2016 I am in colorado but if it was lean wouldn't that affect both cylinders Quote Link to comment Share on other sites More sharing options...
sleeper06 Posted April 7, 2016 Report Share Posted April 7, 2016 What's ur elevation Quote Link to comment Share on other sites More sharing options...
Joeschwab Posted April 7, 2016 Author Report Share Posted April 7, 2016 5000 ft Quote Link to comment Share on other sites More sharing options...
sleeper06 Posted April 7, 2016 Report Share Posted April 7, 2016 That's high jetting isn't thag off , well you covered everything mechanically , see if you can try s diffrent flywheel and try swapping carbs to rule out fuel Quote Link to comment Share on other sites More sharing options...
Joeschwab Posted April 7, 2016 Author Report Share Posted April 7, 2016 Okay I have another banshee that I know runs I'll try the flywheel and if that dosent work I'll swap carbs Quote Link to comment Share on other sites More sharing options...
Joeschwab Posted April 11, 2016 Author Report Share Posted April 11, 2016 Okay so I found a air leak on one if the intakes I got that fixed no it run good up high and when review really quick but when I hole it at about 1/2 throttle the left side stops running Quote Link to comment Share on other sites More sharing options...
Joeschwab Posted April 11, 2016 Author Report Share Posted April 11, 2016 Also when just review from idle it puffs smoke out left pipe and not right 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.