|
Enduro Engine - 2 stroke Cylinder, Piston, Tranny, Bearings, Clutch, Pipes & Silencers, etc. |
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
Real 'tinny' exhaust noise?
My '05 EC300 just started making a funny exhaust noise, but only at certain times.
1)Hitting 'false' second (rarely, thank god) 2)Jumping logs or rocks In both these cases, RPMs go full-pinned for a split second. Then the exhaust gets a real tinny ping-ping-ping to it, maybe 10 seconds worth, til it clears out......then its back to its grunty normal exhaust note. Any ideas? Jetting seems to be bang on, except that its smokin hot here right now in southern BC, like 40C/100F degrees.. And the first time it happened I was riding at 5300ft ASL, I normally ride around 3000ft. But she's running really good otherwise, just put on a 4 hour ride yesterday, just about stroked out from heat exhaustion! Thanks! |
#2
|
||||
|
||||
Quote:
__________________
Steven Beane #275 PlusOnePerformance - Superior Service the World Over - Dearborn MI AMA District 14 (Michigan) Officer afterhourscycle.com Michigan's Beta and TM Race Headquarters |
#3
|
|||
|
|||
Even if the tinny noise is only after these instances? Happened twice in 4 hours yesterday. Funny thing is, my jetting was bang-on, as far as I can tell, when the weather was way cooler. Should it not be running richer now, if anything?
Running a 175 main, 40 pilot. |
#4
|
||||
|
||||
Quote:
__________________
Steven Beane #275 PlusOnePerformance - Superior Service the World Over - Dearborn MI AMA District 14 (Michigan) Officer afterhourscycle.com Michigan's Beta and TM Race Headquarters |
#5
|
|||
|
|||
Good idea. Thanks. Definitely don't wanna lean out my engine........
|
#6
|
||||
|
||||
Make sure your powervalve isn't sticking open. They get a real tinny sound when that happens but It shouldn't make your rpms hang up unless you are lean on your jetting.
|
#7
|
||||
|
||||
This is where I'd be looking
|
#8
|
|||
|
|||
I have the same problem when I land hard jumps it sounds like the pipe has a hole in it loss of power until I can rev the sound away then all goes back to normal.... my 2011 300 did it and my 2014 300 does it.... very annoying and extremely hard to troubleshoot.
__________________
2011 ec300e 2008 txt 300 pro |
#9
|
|||
|
|||
Quote:
Ed...
__________________
2011 250 Race, kicker... 2006 640 KTM Adventure... Smartcarb... Done Waiting, maybe later... Lectron... Got one.. |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
First real ride on the '14: | n_green | Pictures & Videos | 0 | 05-19-2014 07:24 PM |
Temporary Loud Exhaust Noise???? | Canadaler | Enduro Engine - 2 stroke | 12 | 07-15-2013 09:39 AM |
High pitch Squealing from exhaust and exhaust flange????? | Scar13 | Enduro Engine - 2 stroke | 5 | 02-11-2012 11:32 AM |
515 the REAL DEAL | hasslbri | Ride Reports | 40 | 04-14-2008 01:03 AM |
Exhaust noise | captainslow | Enduro Engine 4 stroke (including EFI & Exhaust) | 1 | 12-10-2007 07:26 PM |