bluebanshee98 Posted May 1, 2012 Report Share Posted May 1, 2012 (edited) i am having a rev limiter type effect ( high end miss) going on right towards redline on the higher rpms. set up is as follows, 4 mil hjr dune port, stock carbs, 340 mains, 27.5 pilots, k&n pods, vforce3 reeds, tors and parking brake removed, noss head, +4 timing. stator/flywheel pickup is gapped at .018 and plugs are gapped at .022. i did a leak down test and tried all different types of jetting from 320-370 mains. elevation is around 300 ft above sea level. i beleive it is an electrical issue. starts up fine, idles fine, everything is good up to a higher rpm. wide open throttle is fine up to a certain rpm ( higher powerband rpms and redline) i did some researching and it seems stators seem to go. could be coil, plug wires,caps,cdi box. i tried new plugs with the correct gap for my set up and no luck. air filters and reeds are new. here is a video on youtube that basically sounds the same problem as mine right now. (28-32 seconds in video . thats not my bike but its basically doing the same thing... mine revs out a lil farther then does that) there is no backfire youtube.com/watch?v=8n0vmQzjZ1U im not really sure how to test the electrical stuff. i have a multimeter but cant get a reading out of the coil at all. i could be doing it wrong though. its on ohmn 2k setting and i touch the negative and postive part of the coil with the negative and postive part of the meter and no reading on the meter. im def a noob when it comes to electrical. i have read thatr you can test coils and they can still be bad? there was actually a thread on this forum about the same problem ( and it turned out to be the stator. before i go buying new parts i thought i would get your hq's thoughts or advice first. im thinking its the coil or stator starting to fail. i had this "rev limiter issue" before but it was a air leak/jetting problem. fixed that and it ran good ( no rev limiter) then out of no where it started to happen again. possibly a electircal issue caused by the power of the port. the porting will not cause that issue... its gotta be electrical Edited May 1, 2012 by bluebanshee98 Quote Link to comment Share on other sites More sharing options...
Surfrjag Posted May 1, 2012 Report Share Posted May 1, 2012 Try and find someone local that will let you try out there stator. Also check your grounds and plug wire ends where they attatch to the boot. When you have hour flywheel off see if it rattles. Quote Link to comment Share on other sites More sharing options...
252wheelieking Posted May 1, 2012 Report Share Posted May 1, 2012 Try and find someone local that will let you try out there stator. Also check your grounds and plug wire ends where they attatch to the boot. When you have hour flywheel off see if it rattles. Jeff's bike is doing the very exact same thing. So this info would be great. Quote Link to comment Share on other sites More sharing options...
SonOfSand Posted May 1, 2012 Report Share Posted May 1, 2012 You do have solid tip spark plugs right? Not the kind that the tip screws on to threads. Quote Link to comment Share on other sites More sharing options...
bluebanshee98 Posted May 1, 2012 Author Report Share Posted May 1, 2012 Try and find someone local that will let you try out there stator. Also check your grounds and plug wire ends where they attatch to the boot. When you have hour flywheel off see if it rattles. gonna buy a flywheel puller tomorrow. it shouldnt make any noise while shaking it correct? all bolts that hold on cdi, coil are nice and tight. stators are easy correct? just take off flywheel, then screws that hold on stator and unplug stator correct? reverse steps to install? Jeff's bike is doing the very exact same thing. So this info would be great. same issue as my bike? should be getting a go pro hero 2 camera in soon and ill make a video of it with my bike You do have solid tip spark plugs right? Not the kind that the tip screws on to threads. i had them before, currently just have br8es plugs with tip screws, the tips on the plugs are very tight though and have not vibrated off at all. its not fuel related i still have a good amount of gas in the carbs left after doing this. Quote Link to comment Share on other sites More sharing options...
SonOfSand Posted May 1, 2012 Report Share Posted May 1, 2012 try going .016 on the pickup gap, and go back to solid tip plugs. Quote Link to comment Share on other sites More sharing options...
bluebanshee98 Posted May 2, 2012 Author Report Share Posted May 2, 2012 try going .016 on the pickup gap, and go back to solid tip plugs. illl do that tomorrow and see if that fixes the problem. would the solid tips make that much of a difference? i can understand if the tips were coming off but they are staying on nice and tight. any other thoughts people reading this thread? Quote Link to comment Share on other sites More sharing options...
Surfrjag Posted May 2, 2012 Report Share Posted May 2, 2012 If the flywheel rattles you probobly found the problem. The stator is pretty easy just those 3 bolts and pull the wires theough. You gotta bring the rubber gromet out with the wires when you pull it through the cases Quote Link to comment Share on other sites More sharing options...
bluebanshee98 Posted May 2, 2012 Author Report Share Posted May 2, 2012 (edited) If the flywheel rattles you probobly found the problem. The stator is pretty easy just those 3 bolts and pull the wires theough. You gotta bring the rubber gromet out with the wires when you pull it through the cases thanks bro. gotta grab the tools first and ill see how the flywheel is and let you guys know. hey hows the nology coil? better then oem? Edited May 2, 2012 by bluebanshee98 Quote Link to comment Share on other sites More sharing options...
zachass9 Posted May 2, 2012 Report Share Posted May 2, 2012 My money is on plug wires and or plug wire ends Quote Link to comment Share on other sites More sharing options...
RadarRacing Posted May 2, 2012 Report Share Posted May 2, 2012 I agree with Zachass unless you pull your flywheel off and see red colored windings. Thats a Ricky Stator , then my money is on stator. Quote Link to comment Share on other sites More sharing options...
bluebanshee98 Posted May 2, 2012 Author Report Share Posted May 2, 2012 I agree with Zachass unless you pull your flywheel off and see red colored windings. Thats a Ricky Stator , then my money is on stator. ill let you guys know and thankyou. yea i have read and heard that ricky stators are crap! Quote Link to comment Share on other sites More sharing options...
dlnoss Posted May 3, 2012 Report Share Posted May 3, 2012 What domes and fuel? Quote Link to comment Share on other sites More sharing options...
bluebanshee98 Posted May 3, 2012 Author Report Share Posted May 3, 2012 (edited) i beleive they are 22 or 21? cant remember. it runs on 93 pump gas. ok i think i solved my problem! for the heck of it i took the coil to the shop to make sure it was working correctly and it is. the problem was the cap! i put some new ngk ones on and it seems to have fixed the problem. 6 bucks. the plug caps are nice and tight on the plugs now and no more rev limiter effecr. revs very clean. heres pics of the stock 98 caps thank god i didnt start buying parts! lesson leanred. always start with the least expensive stuff first. could be something as simple as that. i took it down the street for a lil ride and seems to be fine. i will def report back soon with a update to make sure it has cured the problem. 252wheelieking- tell your friend jeff to try new plug caps if he is having a high end miss like mine was. i got the ngk ones. you have to unscrew the lil top on the spark plug to make it fit into the new caps i got. zachass9- good call bro! seems that was exactly the problem. thankyou everyone for your support! much appreciated!! give me a lil time so i can report back and let you guys know. gotta take it for a good long ride and see if it holds up which i beleive it should. ahhh i feel like a lil kid on christmas! having my 4 mil dune port finally run right. Edited May 3, 2012 by bluebanshee98 Quote Link to comment Share on other sites More sharing options...
bluebanshee98 Posted May 3, 2012 Author Report Share Posted May 3, 2012 sonofsand- im actually using the standard br8es plugs wit the lil cap off so it fits into the new plug caps. i cant fit solid tip plugs in or a regular plug with the small cap on top for that matter. gap is still at .018 and i didnt even gap the spark pllug at all. is it possible yours was having that same issue awhile back due to the cap? i remember i pmed you about my prob awhile ago. just food for thought. surfrjag- thanks for the flyhweel tip i didnt know about that. i love this forum there is so much to learn and good people here Quote Link to comment Share on other sites More sharing options...
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