[06superjet]

Hey guys, havent heard anything on my gauges being inop, still looking for answers if anyone has any, another question though, i just ran a compression check on my 2003 gp1300r, i was using an old ass gauge, dont know how accurate it is. but the machine was running 78-85 PSI, seems low to me, but will within the 15% range. i am used to working on boat engines which run around 150PSI, is this normal for a two stroke or is this a sign of bad rings. any answers at all would be a great help. thanks.

 

[jetdave56]

low compression

yes , the compression gauge should be of high quality(craftman/snap on) with the proper fitting shroud(adapter) with no air leaks, those #s sound way low,but are all close within reason.If you have the service manual see what the minimum compression that is required on the stock ski and the proper procedure.... heres a link


How to do a Compression Test - Green Hulk Personal Watercraft Performance Forums