Neptune muffler onto a VTR250

**Krayy** · 1st December 2006, 07:49

I found a hole in the bottom of the muffler this morning, so am keen to get a performance replacement. Let us know how you get on with the rejetting.

**vifferman** · 1st December 2006, 07:56

Originally Posted by limbimtimwim

True, they could. The needles with the factorypro kit could improve midrange. And they are adjustible items, for extra places to mess things up. Though you could move the standard needles out by putting washers under the ends of them.Good things take time(?). How much are they asking, roughly?

I'd try shimming them first.
I did this with my VFR750 after I had the mufflers modofied, and also with the VTR1000. It was all that was required, and was easy to do.
Oh - and it cost nothing; the appropriate shims are easy to obtain, in fact I have HEAPS of them at home. If you want to give it a go, let me know and I can mail some to you.

Oh - just watched your clip; it sounds very nice now!

Ride the thing, and if it's popping and backfiring LOTS (a little is kewl) on overrun, then it's too lean. Also, if you ride along at constant throttle, and it's surging a bit, then it's too lean. If it's only popping a little when you engine-brake, and isn't noticeably hesitant when you open the throttle, leave it as is.

**bounce** · 1st December 2006, 19:47

well Motomart have done a dyno run on it and recon that it is just fine the way it is. Apparently a little rich even at top end. I pick it up tomorrow so will get the full story then. thanks for the comments.

**Drum** · 1st December 2006, 20:29

Looks and sounds great. Hard to believe its a 250.

**hXc** · 1st December 2006, 20:36

I want one for The Spada now. Damn it, lack of money.

**bounce** · 1st December 2006, 20:37

Originally Posted by Drum

Looks and sounds great. Hard to believe its a 250.

Cheers for that. Yeah the build quality is fantastic and Mark even made it the length that I wanted to suit the bike.

**hXc** · 1st December 2006, 20:39

Have Neptune got a site or something? Can you buy a muffler and fit it yourself/get a local shop to fit it?

**bounce** · 1st December 2006, 21:02

yes they do.

http://www.neptunemufflers.co.nz/start.htm

Neptune weld on a bracket rather than strapping the mufflers on so unless Mark had made one for a spada before he might not have the spec needed to make one without the bike being present.. Worth dropping him an email though to find out if you're keen.

To be honest I don't know how much work is involved in fitting a muffler, was stoked to have the installation free with mine.

**bounce** · 2nd December 2006, 14:05

Here's one more clip for those who were interested in the tone.

http://youtube.com/watch?v=xrBycoeFuIQ

**Sketchy_Racer** · 2nd December 2006, 16:13

that sounds awesome. More awesome than the Yoshi pipe on my GPX!!

**dazz** · 2nd December 2006, 21:05

Ive recently put a neptune pipe on my gsx250, when we first got it back was realy happy with the quality but found by doing the jets it made it run that much beter, az well az eliminating flat spots..