new2the'shees Posted September 19, 2015 Author Report Share Posted September 19, 2015 Good testers aren't cheap. I'd recommend a name brand one. Harbor freight is not name brand. Doesn't need to be snap on but at least a craftsman or one from a napa. Any leak down will work as long as it seals. But if it runs fine like you say you may not have a leak. Think you were right sir about the leaks...Carb may have been the culprit. Quote Link to comment Share on other sites More sharing options...
new2the'shees Posted September 19, 2015 Author Report Share Posted September 19, 2015 Hey guys, I rebuilt this thing. Bought it in pieces. P.O. said it had no compression to the point where he could push over easily with hand. Still ran though...Rebuilt top end to find it was 66mm. Bought Namura 66 mm bore piston kit. Started up fine. Carbs were overflowing. Cleaned carbs, Assembled and it wouldnt start easily. Intake leak in right boot...replaced...quad wouldnt start without starting fluid at first then started fine. Today, I poured a lil premix directly in cylinder and she fired right up. Left cylinder was backfiring and missing. Tried to run compression test but was probably doing it wrong, Anyhow, both looked in the same ballpark. Took carb off in last ditch effort. Turn bowl upside down, voila, a jet falls out of the bowl, 1.4 it says. I cannot find where she resides though...Could this jet be the core of my issues? Left Carb* Quote Link to comment Share on other sites More sharing options...
J-Madd Posted September 19, 2015 Report Share Posted September 19, 2015 Did it have cast Pistons before? And did you hone it before installing new ones? Quote Link to comment Share on other sites More sharing options...
new2the'shees Posted September 19, 2015 Author Report Share Posted September 19, 2015 honed yes. Idk no pistons with it... Quote Link to comment Share on other sites More sharing options...
new2the'shees Posted September 19, 2015 Author Report Share Posted September 19, 2015 Quote Link to comment Share on other sites More sharing options...
new2the'shees Posted September 19, 2015 Author Report Share Posted September 19, 2015 Quote Link to comment Share on other sites More sharing options...
new2the'shees Posted September 19, 2015 Author Report Share Posted September 19, 2015 Aside from that, any input on the jet? Quote Link to comment Share on other sites More sharing options...
new2the'shees Posted September 19, 2015 Author Report Share Posted September 19, 2015 I rebuilt Go-Peds when I was younger, LOL, these Banshees are making me learnnn now. More advanced when you go from 29cc. to 350 twin...LOL Quote Link to comment Share on other sites More sharing options...
new2the'shees Posted September 19, 2015 Author Report Share Posted September 19, 2015 Choke jet....? Would it cause misfire as well? 1 Quote Link to comment Share on other sites More sharing options...
new2the'shees Posted September 20, 2015 Author Report Share Posted September 20, 2015 Compression test at 124...Passed leakdown. I think it has to do with starter jet that fell out of bowl....any input. It wont thread into bowl either...??Thanks for the help. I just don't understand how this choke jet would not allow my banshee to start and I totally needed to do those tests...sarcasm... Quote Link to comment Share on other sites More sharing options...
oldskool Posted September 20, 2015 Report Share Posted September 20, 2015 There's no choke jet. 1.4 makes no sense. The stock pilot in a banshee is 25. Put your needle in middle position, make sure you have pilot and main jets in both carbs. Set floats properly. Make sure choke tube is connected to both carbs. Sync carbs. At least sync carbs by eye. Quote Link to comment Share on other sites More sharing options...
new2the'shees Posted September 20, 2015 Author Report Share Posted September 20, 2015 There's no choke jet. 1.4 makes no sense. The stock pilot in a banshee is 25. Put your needle in middle position, make sure you have pilot and main jets in both carbs. Set floats properly. Make sure choke tube is connected to both carbs. Sync carbs. At least sync carbs by eye. Can anyone verify this? I am pretty sure there is a hidden choke/starter jet nestled/hidden to the ordinary individual in choke side bowl... Quote Link to comment Share on other sites More sharing options...
new2the'shees Posted September 20, 2015 Author Report Share Posted September 20, 2015 it has a O with a line through it and 1.4 on it. 1 Quote Link to comment Share on other sites More sharing options...
new2the'shees Posted September 20, 2015 Author Report Share Posted September 20, 2015 Can anyone verify this? I am pretty sure there is a hidden choke/starter jet nestled/hidden to the ordinary individual in choke side bowl... Quote Link to comment Share on other sites More sharing options...
new2the'shees Posted September 20, 2015 Author Report Share Posted September 20, 2015 Will not thread in though...? Wonder if the threads inside are stripped out or if there is something else in there (looks silver but could be stripped threads. So tiny and far down it is VERY hard to tell.) Or is this even the left side bowl...? Quote Link to comment Share on other sites More sharing options...
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