bignasty1 Posted December 5, 2003 Report Share Posted December 5, 2003 it sounds like really hard firing i know your going to say detonation but i thought of that 1 i tried race gas and 2 i set my timing back on stock and checked the plugs and pulled my head to see my pistons no marks the plugs look fine and i did a compression check and got 157 on each side same as it has been since the compression quit raising after my rebuild. these are new noises to my bike and just started about half way through a ride damn thing sounds like a deisel compared to my friends bike. wtf. what else could it be. i am tired and goin to bed i worked a 14 hour day today and rode for like 20 minutes in the rain and then came back cuz it was a loud motor pulled every thing tried diferent gas changed my timing and now i'm tired. and goin to bed damn it. any help is apreciated. Quote Link to comment Share on other sites More sharing options...
. Posted December 5, 2003 Report Share Posted December 5, 2003 Is the sound coming from inside the engine or out the pipes? Packing maybe gone bad? Blew it out? If its coming from inside the engine, take a screwdriver and hold it against parts of the engine, and hold the other end to your ear.....you'll be able to hear better where its coming from. Quote Link to comment Share on other sites More sharing options...
JARE77 Posted December 5, 2003 Report Share Posted December 5, 2003 Could it be your kick starter? Sometimes they have a tendency to be rather loud and mistaken for a motor noise. sounds stupid but it happens! Quote Link to comment Share on other sites More sharing options...
txblueshee Posted December 5, 2003 Report Share Posted December 5, 2003 If it's shaking abnormaly you could have a crank on the way out!?!? Mike Quote Link to comment Share on other sites More sharing options...
bignasty1 Posted December 5, 2003 Author Report Share Posted December 5, 2003 i did the screw driver thing and it definately coming from the top end. but my pistons look fine it doesnt shake bad no worse than what it did b4 the noises came about and its not the kick starter. it would suck if it was the crank tho its only got about 30 hours on it and its brand new. but if it comes out shit happends and it gets replaced by a 4 mm stroker. its tha only way to do things. i guess we will wait and see... but thanks for the help. Quote Link to comment Share on other sites More sharing options...
. Posted December 5, 2003 Report Share Posted December 5, 2003 when you took your head off did you try moving the pistons back and forth? How many hours do you have on the top end? When you get off the throttle or your kind of feathering the throttle to keep your engine spinning but not putting any load on it or revving down do you get a chatter type sound? Quote Link to comment Share on other sites More sharing options...
frocashmoney24 Posted December 5, 2003 Report Share Posted December 5, 2003 thsi may sound dumb, but did ur air filter fall off? Quote Link to comment Share on other sites More sharing options...
bignasty1 Posted December 6, 2003 Author Report Share Posted December 6, 2003 my doesnt make a clatter noise i know what ur talking about tho what causes that the crank? ohh and cash money no my air filter didnt fall off i have pods and their both their but its happend b4. i am kinda half tempted to just go ahead and call it quits here and fix it b4 things get real ugly unless its a simple fix and i run outa cash and just throw in a stroker get some porting done. ya know. thanks guys l8ter Quote Link to comment Share on other sites More sharing options...
bignasty1 Posted December 6, 2003 Author Report Share Posted December 6, 2003 ohh and you made me think so i took my head off and there is some play in the pistons but not to much no more than usual or what i think is usual cuz i would imagine that there would be some movement just not to much cuz i had lil play in the piston on my old dirt bike and it ran fine for ever b4 i sold it so i guess it was normal. Quote Link to comment Share on other sites More sharing options...
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