shee1992 Posted October 9, 2014 Report Posted October 9, 2014 My bike started cutting up or breaking up about a month ago. I was pretty sure its electrical so i have replaced coil, wires, caps, stator, cdi, flywheel, compression is good and its still doing it. Any help would be greatly appreciated. Quote
Larry's Shee Posted October 9, 2014 Report Posted October 9, 2014 (edited) That ^^^ is a good start. New plugs? Clean carbs? Set pick-up gap? Ohm pick-up coil? What brand stator did you have, and brand of new? New plug boots with new coil? Does it happen at certain rpms/throttle pos, or all through the range? Edited October 9, 2014 by Larry's Shee Quote
sheerider1026 Posted October 9, 2014 Report Posted October 9, 2014 The air has gotten a lot cooler here. May want to rule out a jetting issue. Also maybe a broken reed? Quote
shee1992 Posted October 10, 2014 Author Report Posted October 10, 2014 Not jetting guys, it does it at every rpm when a load is on it. In nutreal it revs as it should. It had a ricky stator and i replaced it with oem. I replaced coil, wires and cdi from dyna, caps are oem. But i have swapped all these parts from my other bike that runs and no change. Only part i could not swap was the cdi cuz this bike is the newer plug and my other are not. Also air leak test was perfect. Quote
bluebanshee98 Posted October 10, 2014 Report Posted October 10, 2014 caps are oem.. are they used oem caps? In my experience when I had a high end miss after chasing jetting Ect new plug caps fixed the problem. Couldn't hurt to replace them. Not expensive and will just help if anything. Don't get the junk ngk ones. Get new oem or fast has some good caps you can buy Quote
oregonsandsports Posted October 10, 2014 Report Posted October 10, 2014 i agree with ^this guy i had the same exsperiance.. def do a leakdown, and if ur runnin a cool head i had an o ring leak before and it poped on top just slightly with no visable coolant los fyi.,,and if ur elect. parts are used u cant rool that shit out... Quote
shee1992 Posted October 10, 2014 Author Report Posted October 10, 2014 Leakdown done no leaks and caps are oem new and i have even swapped the entire coil setup off another bike and no luck. Maybe i got a bad cdi right out the box Quote
sleeper06 Posted October 10, 2014 Report Posted October 10, 2014 Do u own a digital ohm meter? If so stop part swapping and start testing. I have also had a motor that held a leakdown test cold But once it ran it would blow coolant by orings in head I found a crimped oring Quote
sleeper06 Posted October 10, 2014 Report Posted October 10, 2014 Remember just because you put new caps on doesn't mean they will ohm out correctly , I think every bike I work on has bad wires or caps. When you did pressure test how did you do it Quote
oregonsandsports Posted October 11, 2014 Report Posted October 11, 2014 sleeper is spot on man, my oring didnt leak till bike got hot not only that i couldnt se a damaged o ring.. test her warm.. Quote
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