Question for 1700 owners

[Bubba in TX]

What you are hearing is the tremendous powerful explosion from the amount of air and fuel in those huge cylinders getting touched off by the spark plugs under outrageous compression and the rest of the power train trying to keep up with it.

Or something like that............... however, mine does not make any engine tic/knock/rattle at all.... especially right now.. it is in Texas and I'm not....

UPDATE:

I think when I go down to Del Rio I will do the 3 Sisters. Our "normal" Saturday lunch run here is always around 500 miles or more as it is "that far" to anywhere from here.

Here is some info in the 3 Sisters.....

http://www.hillcountrycruising.com/the3s.html

[tmanv2krider]

Originally Posted by R_W_B

Don't know what kind of Knock you are talking about.

When you blip the throttle, does the engine stutter and hesitate ?

If so is this when you hear the clunk or knock ?

If you answer yes to both the above then, yes I have the same thing on my 2011 Nomad. It got worse when I put the throttle mod on it, prior to the throttle mod it mostly did nothing when I blipped the throttle, no rpm gain, just kinda nothing. The throttle lag is the result of Kawa's electronic throttle.

I have to gradually increase rpms before I blip the throttle or else I get a very detectable knock. Evidently the ECM is not able to deal with a fast increase of throttle from idle (resulting from the throttle mod).

No stutter or hesitation, just a clunk noise when you blip the throttle. If you gradually raise the RPM's it doesn't happen, like you stated.

Originally Posted by Timberwolf2012

My 2010 Nomad does the same thing. Bear in mind those are large pistons slinging around. Because of the single pin crank design of this v-twin, if you goose the throttle from idle, you will get a "slap" from the engine. I don't think it is anything to worry about.

My 2000 has even bigger pistons sloshing around in it and there is no clunk or knock on a good blip of the throttle at idle.