| Author | Message | ||
     Billyboy |
This may be nothing...I've recently added a HBBI air cleaner (think Forcewinder, but bigger), and V&H exhaust. The intake also has a filter for the breathers, which, due to its size, I routed to sit over the intake on top of the carb. As I ride, I'm hearing a nice exhaust note, but also, in time with the engine "thump" a clacking of sorts. I only hear it with my face shield down; there's too much wind noise with it up. Any idea what I might be hearing? Is it noise from the heads as a result of the breather and filter being un-hidden from the stock intake setup? It appears to be in perfect sync with engine noise  | ||
| Kilroy |
It is most likely valve train noise. These valve trains are loud. You are probably hearing your intake valves thru the filter. I would re-visit your breather set-up. The splooge ain't got no where to go the way you have it now. Need to run it to a catch can or other device, right now you have one cylinder running to the other and versa-vice Kilroy | ||
| Fahren |
For the breather routing, try flipping the banjos 180 degrees, pointing down, and with the filter in the middle of an H pattern, if it will fit below the big intake: .....O..........O .....V..........V .....V..........V .....V..........V ....O-fltr-O .....V..........V .....V..........V <<<O<<<<<<O | ||
| Billyboy |
That's what I thought, Tom, about the valve noise. The tubing for the breather was so thick, I couldn't get it between the frame and the cylinders. I'll look into getting smaller OD tubing. I like the catch cans I've seen on ebay, too. I assume you need to "t" the tubes and send just one into the can? Thanks for the suggestion, too, Chris. | ||
| Fahren |
Yes to the T to one tube. If you follow the V's in my ginchy diagram up above, you see flow downward, past the 2-ended filter like the one you have, downm then the right one bends or has an L fitting, heading out toward the rear, and the rear cylinder line would T into that coming down from above. .....B..........B(anjo) .....V..........V .....V..........V .....V..........V ....T-fltr-T .....V..........V .....V..........V <<<T<<<<<<L You can (should) definitely get some thinner line, like standard car fuel line. (Message edited by fahren on June 21, 2011) |
