Web moped2.org




Date: Wed, 03 May 2000 18:52:53
Subject: Re: Pacer (was: Re: Yamaha Job vs. Puch Magnum)
From: Cap'n Tom Miller
Reply to author   Post followup (list members only)   Back to index   Subscribe to the mailing list   Unsubscribe from the list  

Very few of us, not being engineers, really understand the "pulse" and the needed
backpressure to make a 2 stroke work to maximum advantage. I'll stick with the
manufactures "pipe" and those of trusted aftermarket suppliers to know the
engineering. I remember fitting a vacuum cleaner hose as an exaust to my Cushman
scooter, only to throw a rod, break the camshaft and really trash the
machine.....but it did sound good on that last run....
Cap'n Tom

"K. Brant Niggemyer" wrote:

> > Hi
> > What do you mean by the header?
> > I mean the point where the exaust system first bolts on to the manifold.
> > > It is normal to have a 10 -15 mm outlet at
> > the end of the pipe.. while at the beginning / manifold / cylinder port it
> > is 20-28mm diam.. is usual.
> > Exactly. The exhaust manifold has a diamater of about 25 mm. But the pipe that
> bolts on is about 10mm -- where it meets the manifold. So you see what I mean
> when I say the header is small.
> > Newsletters, Tips and Discussions on Your Favorite Topics

Newsletters, Tips and Discussions on Your Favorite Topics

Reply to author   Post followup (list members only)   Back to index   Subscribe to the mailing list   Unsubscribe from the list  



Forums at Moped2.org Privacy policy
Moped2.org Home My other sites

Home   Contact
Wikipedia Affiliate Button