Paul76 Posted March 31, 2013 Report Share Posted March 31, 2013 Bike ran strong all weekend at little Sahara now it blows sparks out of the stator side and back fires y Quote Link to comment Share on other sites More sharing options...
WINDYCITYJOHN400 Posted March 31, 2013 Report Share Posted March 31, 2013 Your flywheel came loose. Happens A LOT! Inspect for damage. Take flywheel off and shake it hard. If it makes noise like a rattling than your flywheel is toast. If it beat up your stator, contact Evan at RaceTech Electric and get a new one headed your way. Then get some valve lapping compound from your local auto parts place and put it on the tapered part of your crank as well as the flywheel. By hand work that thing like a doorknob to mate the two surfaces so they take the same shape. (You can't possible spend too much time on this part of the process.) When both surfaces have a nice equally frosted look, you will know that they now match. Now using brake cleaner, clean the crank and flywheel of all lapping compound. Next get some blue or red Loctite and smear it on the crank end and the flywheel. Now (Using a proper flywheel tool) torque that flywheel bolt 10 pounds past factor spec. Let it sit over night so the Loctite can set up. End of problem. 1 Quote Link to comment Share on other sites More sharing options...
Paul76 Posted March 31, 2013 Author Report Share Posted March 31, 2013 I will look in to that in the mourning and let you no Quote Link to comment Share on other sites More sharing options...
Paul76 Posted March 31, 2013 Author Report Share Posted March 31, 2013 Just took the stator cover off and it looks good still sparking out of stator side pipe Quote Link to comment Share on other sites More sharing options...
Paul76 Posted April 1, 2013 Author Report Share Posted April 1, 2013 Anyone have a idea what would cause this? Quote Link to comment Share on other sites More sharing options...
Jereme6655 Posted April 1, 2013 Report Share Posted April 1, 2013 when you say it LOOKS good.....does that mean it IS good or you just looked at it and that's it? Did it shear a flywheel key and you didn't notice? is it still TIGHT on the crank? is the gap still set correctly? Quote Link to comment Share on other sites More sharing options...
Paul76 Posted April 1, 2013 Author Report Share Posted April 1, 2013 It is tight on the crank still Quote Link to comment Share on other sites More sharing options...
WINDYCITYJOHN400 Posted April 1, 2013 Report Share Posted April 1, 2013 Wait...before you said it like the sparks were coming from the stator. But now I understand your saying the sparks are coming out your left tailpipe. Is that correct? If so...pull your head because your motor is eating rings. Quote Link to comment Share on other sites More sharing options...
Paul76 Posted April 1, 2013 Author Report Share Posted April 1, 2013 What would cause it to eat the rings Quote Link to comment Share on other sites More sharing options...
Paul76 Posted April 3, 2013 Author Report Share Posted April 3, 2013 Found out what happed the guy that rebuilt my motor did not smooth the ports and the rings were hitting the sharp edges Quote Link to comment Share on other sites More sharing options...
WINDYCITYJOHN400 Posted April 3, 2013 Report Share Posted April 3, 2013 Eating rings FTW! OK, that should be an easy fix. Quote Link to comment Share on other sites More sharing options...
Paul76 Posted April 3, 2013 Author Report Share Posted April 3, 2013 What sucks is I only got one trip to the dunes on that motor Quote Link to comment Share on other sites More sharing options...
Jereme6655 Posted April 4, 2013 Report Share Posted April 4, 2013 guy didn't chamfer your ports. Next time stick with a guy that knows what he's talking about......Ive gone in and physically asked the guy if he chamfers after he bores. Say it just like that.....if he looks at you funny, walk out the door and don't look back. 1 Quote Link to comment Share on other sites More sharing options...
Paul76 Posted April 4, 2013 Author Report Share Posted April 4, 2013 Can I do it myself if so how? Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted April 5, 2013 Report Share Posted April 5, 2013 It can but you must have steady hands. You can do it with a set of chamfering files from any specialty tool store. They are files with different angles and profiles that you use to clean off the sharp edges of the ports after a bore or hone job. If not just about any small engine shop might be willing to do it for a small fee Quote Link to comment Share on other sites More sharing options...
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