compression test or leakdown test?

3 replies to this topic
  • zuki88

Posted 06 January 2005 - 08:10 AM

#1


I'm interested in the condition of my piston and rings after about 50-60 hours of use. Would I be better off with a leakdown test or a compression test? I have a compression gauge but it is for automotive purposes, does anyone know where I can get an adapter for the sparkplug thread on the bike? If I do in fact need a leak down test, does anyone know where I can get a gauge cheap? Thanks in advance.

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  • jumpingcanuck

Posted 06 January 2005 - 10:22 AM

#2

Compression test may turn up innacurate due to the decomp system, leakdown test would be better suited, Mac tools or snap-on to get the metric adapter for the plug hole, mines snap-on. ha ha I bought it then decided to change the top end without checking first so I got no baseline for numbers to help you out, sorry

  • Rich_Fish

Posted 08 January 2005 - 12:02 AM

#3

Motion Pro's leak down tester can be had for alot less then the Snap-On or Mac Tools version.

But

Compression tester will work just fine for your application. Suzuki and most others will take into account the auto decompression system when providing specs or they will specify that the system needs to be disabled.

A leakdown tester is a nice tool to have and can tell you alot more above and beyond what a compression tester will tell you.

Lastly with 50-60hrs of use on the same pistons and rings, it might be worth just doing the top end for the piece of mind part...

  • superduper

Posted 08 January 2005 - 12:33 AM

#4

i would say do both. theyll both tell you different things



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