Re: suzuki fa50 frustration

joew /
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there's no harm (except to your eardrums) running no muffler to test that .. I and a few other people around here have done it.

What should happen is top speed increases since exhaust exit is much improved at top RPM. However, you lose lots of fresh mixture out the exhaust and at lower RPMs, ow-speed power will suffer badly.

My top speed went from 30 to about 37 MPH without the muffler.

:

yeah.. do a compression test. You could have any sorta problem on the top end .. damaged rings or rings stuck in their grooves.. a holed piston .. a warped head .. who knows.

Dont be shy about pulling the head for the sake of a freakin head gasket. New ones are easy to make from sheet aluminum or copper.

:

You've checked so many things that it might be time to get serious and check crankcase compression too .. might have a leaking mainseal.

A leak there will show oil residues on the outside of the engine near the main bearings. Sprinkle some baby powder around the bearings. If it turns dark oil being blown out the seal is making it dark.

The crankcase should hold about 7PSI for at least a few minutes.

Seal all openings and use a small hand pump. Seals might blow (be ruined)) with more than about 10 PSI of pressure.

:

A lot can happen in 1,000 miles or even in 10 miles .. Like running without lubrication can do amazing things pretty quickly.

Pull that head and look-see whats up in there.

This single post is part of a larger thread. Start from the top or view this post in context.
Subject Written By Posted
  suzuki fa50 frustrationTopic by: Dave Campman Dave Campman 06/09/06 10:23PM
  Re: suzuki fa50 frustrationRe: joew joew 06/09/06 10:43PM
  Re: suzuki fa50 frustrationRe: Dave Campman Dave Campman 06/09/06 11:09PM
  Re: suzuki fa50 frustrationRe: joew joew 06/09/06 11:46PM
  Re: suzuki fa50 frustrationRe: Mike Berkey Mike Berkey 10/15/19 11:39AM
  Re: suzuki fa50 frustrationRe: P D P D 10/15/19 11:51AM
  Re: suzuki fa50 frustrationRe: Dave Campman Dave Campman 06/10/06 12:08AM
  Re: suzuki fa50 frustrationRe: Rusty Rusty 06/10/06 06:45AM
  Re: suzuki fa50 frustrationRe: Dave Campman Dave Campman 06/10/06 09:24AM
  Re: suzuki fa50 frustrationRe: Dave Campman Dave Campman 06/10/06 09:37AM
  Re: suzuki fa50 frustrationRe: Dave Campman Dave Campman 06/10/06 05:19PM
  Re: suzuki fa50 frustrationRe: joew joew 06/10/06 05:53PM
  Re: suzuki fa50 frustrationRe: Rusty Rusty 06/10/06 10:05PM
  Re: suzuki fa50 frustrationRe: Dave Campman Dave Campman 06/10/06 11:45PM
  Re: suzuki fa50 frustrationRe: ed james ed james 06/11/06 03:58PM
  Re: suzuki fa50 frustrationRe: carl carl 06/12/06 04:47PM
  Re: suzuki fa50 frustrationRe: Dave Campman Dave Campman 06/11/06 11:42PM
  Re: suzuki fa50 frustrationRe: Aaron in Bellingham Aaron in Bellingham 06/12/06 01:45PM
  Re: suzuki fa50 frustrationRe: Dave Campman Dave Campman 06/12/06 09:04PM
  Re: suzuki fa50 frustrationRe: Rusty Rusty 06/13/06 07:11AM
  Re: suzuki fa50 frustrationRe: carlos carlos 06/13/06 07:34AM
  Re: suzuki fa50 frustrationRe: carlos carlos 06/13/06 12:54PM
  Re: suzuki fa50 frustrationRe: Rusty Rusty 06/13/06 03:41PM
  Re: suzuki fa50 frustrationRe: Dave Campman Dave Campman 06/13/06 04:24PM
  Re: suzuki fa50 frustrationRe: Rusty Rusty 06/13/06 07:47PM
  fa50Re: Eric Eric 06/13/06 08:56PM
  Re: fa50Re: Rusty Rusty 06/13/06 09:17PM
  Re: fa50Re: Dave Campman Dave Campman 06/13/06 11:28PM
  Re: fa50Re: Dave Campman Dave Campman 06/13/06 11:28PM
  Re: fa50Re: carlos carlos 06/13/06 11:55PM
  Re: fa50Re: Rusty Rusty 06/14/06 11:12AM
  Re: fa50Re: Dave Campman Dave Campman 06/14/06 12:42PM
  Re: fa50Re: Mitchell Mitchell 06/14/06 01:55PM
  Re: fa50Re: Rusty Rusty 06/14/06 02:13PM
  Re: fa50Re: Dave Campman Dave Campman 06/16/06 01:44AM
  Re: fa50Re: Dave Campman Dave Campman 06/16/06 01:45AM
  Re: fa50Re: Rusty Rusty 06/16/06 09:15PM
  Re: fa50Re: Harry Crank Harry Crank 06/18/06 03:11PM
  Re: fa50Re: Aaron In Bellingham WA Aaron In Bellingham WA 06/20/06 04:01PM
  Re: suzuki fa50 frustrationRe: derek heeks derek heeks 06/20/06 05:04PM
  Re: suzuki fa50 frustrationRe: Aaron Aaron 06/20/06 05:08PM

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