Added some mods. Have a couple of questions.

[vaquero convert]

Just this past weekend, on my 2011 Voyager, I added Rancnray's grips, K&N air filter and Vance & Hines slip ons. Right away I noticed some decel popping which was to be expected. Today I noticed that under hard acceleration I can hear a hammering sound coming from the right side of the engine. Now I know I've read somewhere that with some aftermarket air intakes, there is a loud hammering sound that the 1700 has. But I didn't expected to hear it with a stock intake. Has anyone else experienced this?

Lastly as I was tightening up an exhaust clamp, I noticed that the exhaust that was coming out of the left side pipe was much warmer than the right side. I'm just wondering if this is normal as the header pipes were both hot.

[Vulcan Hammer]

Originally Posted by vaquero convert

Just this past weekend, on my 2011 Voyager, I added Rancnray's grips, K&N air filter and Vance & Hines slip ons. Right away I noticed some decel popping which was to be expected. Today I noticed that under hard acceleration I can hear a hammering sound coming from the right side of the engine. Now I know I've read somewhere that with some aftermarket air intakes, there is a loud hammering sound that the 1700 has. But I didn't expected to hear it with a stock intake. Has anyone else experienced this?

Lastly as I was tightening up an exhaust clamp, I noticed that the exhaust that was coming out of the left side pipe was much warmer than the right side. I'm just wondering if this is normal as the header pipes were both hot.

1) As to added noise with an OEM K&N Filter element, I did not have "hammering" as you experienced. That "hammering" is the reason I removed a BAK and went back to the stock air box with K&N Element.

However, you might want to check that the K&N is seated properly and you are not sucking air past the seals on the filter or possibly some other connection that came loose on your air box (maybe the PAIR Valve intake?).

2) The dual exhaust on the Voyager and Vaquero is not a true 50/50 split to left and right sides.
Hopefully I have this correct, but there is supposed to be more flow through the right side than the left. Perhaps the more direct side is cooler than the side which is "stagnating" somewhat.

[RACNRAY]

The decel popping can be reduced by plugging up the fresh air hose located at about the 11:00 oclock position of the right side air box. This is a common mod to reduce decel popping.

RACNRAY

[redjay]

I believe the intake "hammering" on the 1700's is due to its engine design (timing, valve overlap ?).

The 1600's with a BAK never did it.
What say you Ray ?

I have had Chucksters BAK on my Voyager now for 2 years and enjoy the added performance and "driveability" coupled with the Powrpro fuel processor. It is much more fun to drive than a stock Voyager.

[vaquero convert]

Question is do you hear it even with the stock intake?

[redjay]

No, not on a stock 1700

[vaquero convert]

That's what I mean. I hear it, or at least I think I'm hearing it since I've installed the slipons. But it's probably just the sound resonating off the bike somehow. So far the bike seems to be running like a champ.

[Vulcan Hammer]

Originally Posted by vaquero convert

That's what I mean. I hear it, or at least I think I'm hearing it since I've installed the slipons. But it's probably just the sound resonating off the bike somehow. So far the bike seems to be running like a champ.

Another possibility...if you are hearing a metallic hammering sound...

I had a literal rapid hammering occur when one of my heat shield clamps slipped off (rear cylinder, nearest the jug). Some of the clamps may not be fully seated from the factory and pushing slip-ons on could jar it off. Mine only came loose after working on my mufflers.