Hitchcocks Forum

Hello everyone.

I recently purchased a 2001 350 Bullet.

It has a Goldstar exhaust which is very loud. I can see through the silencer from one end to the other. Whatever power gain I get from this is not so useful because I'm afraid to use full power because of the noise and vibes.

So, should I fir a baffle with some fibreglass wrapped around it, or should I replace the exhaust with a short bottle design?

Has anyone else fitted a baffle with fibreglass to a goldstar exhaust, and can you tell me how much it reduced the noise?

Thanks,

Dave

Our hosts supply a removable baffle for that.

http://www.hitchcocksmotorcycles.com/pa ... ageref=113

These baffles can be used in virtually any silencer. The smaller baffles are supplied with most of our silencers as standard and can be modified by bending the tangs or shortening to achieve the best compromise between noise and performance. They are attached with a small bolt.


PART No. DESCRIPTION PRICE

BAFFLE3 BAFFLE, (Fits inside diameters from 36mm) £7.50

BAFFLE1 BAFFLE, (Fits inside diameters from 42mm) £7.50

BAFFLE2 BAFFLE, (Fits inside diameters from 48mm) £7.50

Putting a baffle in a Goldie seems to do very little in my experience.

Hi,
A few years ago I purchased a cigar shaped silencer from H's for my 350 this was straight through like yours. The noise was terrible but, with a bit of thought and
patience I worked on it and it now sounds nice. If interested give me a ring 01708 701674 and I will explain.Too awkward to go into on here. But not too difficult
to do.
Ray.

I have a Goldie silencer on a 350. I find that the baffle does make a bit of difference, slightly quite and more mellow.

I have a brand new 350 upgrade silencer still in box if you want to buy a cheap replacement?

This was bought from our host but never used and I would like it to go to a good home I am sure our hosts won't mind this

We'll see if they let RocketRR's post stand!



Daveh, if you're sticking with the goldie loudener, and it's a full-size item for a 1.75" pipe sleeved down to fit the 350's 1.5" pipe, you can get adapter sleeves with an extra baffle included, I haven't seen them in our hosts' catalogue but have a look at ebay item 371332986358. One of these along with our hosts' tail-end baffle ought to calm things down just enough. I used the goldie loudener on my Electra-X, and the extra tail-end baffle on its own wasn't quite quiet enough over 50mph.



Small bottle silencers can give different results depending on the manufacturer. Some are over-baffled but the best ones give the bike a nice healthy blat without the excess racket of an under-silenced system. Also, if you are using the standard short bottle silencer, they look better with the long exhaust pipe.



A.

Hi guys
As a slight digression from the goldstar discussion but still to do with baffles and glass wool, but maybe of interest to other readers, I also had the same problem with my 1996 500 Bullet with a Hitchcocks short tubular (PN 91007) which was way too loud and harsh. I tried the short baffle with the tangs variously pointing in, out, shake-it-all-about to no avail. So I welded two short baffles together - no difference. So I welded a third baffle onto that pair to make 7" baffle with plenty of tangs, still ineffectual whether bent in, out, partly etc. So I took a hacksaw to the silencer and cut the end off. Then spotwelded an overlapping plate inside with 6mm s/s nuts welded at 120degree intervals around the extension and drilled matching holes through the cutoff section to make my own refillable silencer - see the attached images. Then I rammed long fibre fibreglass into the silencer annulus. BLISS! Nice thump, quite loud but not objectionable and I still had the open, through perforated tube. Over the past ~1000kms it has continued to perform well with no obvious effect on noise or performance. The opened images show what the silencer material looks like after that distance - I had to ram the fibreglass back into the annulus as it was protruding and I couldn’t get the end cap on but it was surprisingly clean.
Cheers, ChrisD















I hope the images work. If not, they are on my photobucket account (Chrisd200)