Jtw Posted December 20, 2010 Report Posted December 20, 2010 i hadnt ran my bike in about 3 months cause i was doing a suspension upgrade, now i feel like there is a weird knocking noise from the motor, heres the u tube link any help would be appreciated. Quote
CraigP Posted December 20, 2010 Report Posted December 20, 2010 I can hear the knock noise. im not sure what would cause it, i have a polaris predator that made that noise for a couple rides and after a little it just stopped making it. I can also hear your kick starter rattling, i suggest getting it fixed, you can buy spring kits for about $10 Quote
yamahaman244 Posted December 20, 2010 Report Posted December 20, 2010 I can hear the knock noise. im not sure what would cause it, i have a polaris predator that made that noise for a couple rides and after a little it just stopped making it. I can also hear your kick starter rattling, i suggest getting it fixed, you can buy spring kits for about $10 watch that thats a video of mine when i thought it was knocking if it has a differant sound idk everyone says they make the sound on my video just one day i thought it was knocking when it was that Quote
CraigP Posted December 20, 2010 Report Posted December 20, 2010 watch that thats a video of mine when i thought it was knocking if it has a differant sound idk everyone says they make the sound on my video just one day i thought it was knocking when it was that I dont really notice yours knocking, its more of a humming noise. Mine makes that same humming noise if u get close to it. Jtw's banshee is actually making a clicking noise in the cylinder Quote
yamahaman244 Posted December 20, 2010 Report Posted December 20, 2010 I dont really notice yours knocking, its more of a humming noise. Mine makes that same humming noise if u get close to it. Jtw's banshee is actually making a clicking noise in the cylinder ya true at first though i thouhgt something was wrong with mine but it is normal i guess Quote
Jtw Posted December 20, 2010 Author Report Posted December 20, 2010 hmm....the sounds yours makes sounds similar to mine, maybe mines just louder cause im running a t-rex top end.... i hate to take it to the shop for nothing, Quote
yamahaman244 Posted December 20, 2010 Report Posted December 20, 2010 hmm....the sounds yours makes sounds similar to mine, maybe mines just louder cause im running a t-rex top end.... i hate to take it to the shop for nothing, ya.... well if that is the sound its making i wouldnt worry about it cause i was worried about mine and ive burned about 9 tanks sence i really notice the noise thing rips so if u think its that i would think its fine i guess they all make that noise when u get close to the engine..... Quote
Jaystre Posted December 20, 2010 Report Posted December 20, 2010 mine is making the same noise dont have a vid to show tho . i know my compression is too high but dont know if it would cause this noise. Quote
yamahaman244 Posted December 20, 2010 Report Posted December 20, 2010 mine is making the same noise dont have a vid to show tho . i know my compression is too high but dont know if it would cause this noise. might but i dont think so maybe get some higher octane and see what happends Quote
Jaystre Posted December 20, 2010 Report Posted December 20, 2010 might but i dont think so maybe get some higher octane and see what happends yeah ill have too but i doubt i can find any around here . ill be looking for some bigger domes and see if it gets better. Quote
yamahaman244 Posted December 20, 2010 Report Posted December 20, 2010 yeah ill have too but i doubt i can find any around here . ill be looking for some bigger domes and see if it gets better. what domes do u have now cause i think dont quote me but i ilke if u go any lower like 20 or 19 u have to run race gas.......21 seems to be good size to run normal fuel like 91 Quote
Jaystre Posted December 20, 2010 Report Posted December 20, 2010 well i have 21 s right now and im at sea level . but my gauge reads 190 psi ,maybe ill borrow another gauge and double check Quote
68chevyc10355 Posted December 20, 2010 Report Posted December 20, 2010 I don't recall who it was, but someone posted up a link to a video on youtube of a banshee making a similar sound. The problems was supposedly reeds "clattering" as they were opening and shutting. I would still check to make sure its not predetonation. Also, it doesn't sound like your gauge is very accurate. With 21 cc domes you should only be in the 150's or so for compression. Quote
Jaystre Posted December 20, 2010 Report Posted December 20, 2010 I don't recall who it was, but someone posted up a link to a video on youtube of a banshee making a similar sound. The problems was supposedly reeds "clattering" as they were opening and shutting. I would still check to make sure its not predetonation. Also, it doesn't sound like your gauge is very accurate. With 21 cc domes you should only be in the 150's or so for compression. yes thats what i was expecting but cant figure out why it would be so high except a faulty gauge ... i have a post on this in the repair mods section Quote
yamahaman244 Posted December 20, 2010 Report Posted December 20, 2010 yes thats what i was expecting but cant figure out why it would be so high except a faulty gauge ... i have a post on this in the repair mods section that was my video that i posted some guy said it was the reeds but it wouldnt run i dont think if it was them.... and everyone else said it was normal if u go on youtube and videos of people just sitting there letting it run u can hear the same noise Quote
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