traxx2003 Posted October 8, 2011 Report Share Posted October 8, 2011 Hello everyone, I just purchased my first Banshee, (2005 Red/White). Everything is stock except T-5's pipes. The engine has never been opened. Today I did a compression test and the results were 105psi per cylinder. I used a cheap "Harbor Freight" Compression tester gauge to do the test. The test was done holding WOT & with the engine at ambient temp, kicked over 10-15 times & both sparkplugs removed. The bike will start within 3-4 kicks every time. My borther has the same bike and his engine compression is 120psi per cylinder. His bike has VForce3 reeds and T-5 pipes as well. I guess what I'm asking is How good or bad the compression on my engine really is? Will after market reeds make a difference? Should I rebuild? Thanks!!! Link for the gauge: http://www.harborfreight.com/flex-drive-compression-tester-92697.html Quote Link to comment Share on other sites More sharing options...
traxx2003 Posted October 8, 2011 Author Report Share Posted October 8, 2011 (edited) Hello everyone, I just purchased my first Banshee, (2005 Red/White). Everything is stock except T-5's pipes. The engine has never been opened. Today I did a compression test and the results were 105psi per cylinder. I used a cheap "Harbor Freight" Compression tester gauge to do the test. The test was done holding WOT & with the engine at ambient temp, kicked over 10-15 times & both sparkplugs removed. The bike will start within 3-4 kicks every time. My borther has the same bike and his engine compression is 120psi per cylinder. His bike has VForce3 reeds and T-5 pipes as well. I guess what I'm asking is How good or bad the compression on my engine really is? Will after market reeds make a difference? Should I rebuild? Thanks!!! Link for the gauge: http://www.harborfreight.com/flex-drive-compression-tester-92697.html I found this compression chart (NOSS) that, if accurate, the compression of my enigne is not that far off from what it should be at, considering that the elevation were I leave is 2360 feet. According to the chart,@ 2000' compression=118psi on stock motor. Mine @2360'= 105psi. Chart Link: http://www.nossmachine.com/banshee_heads.htm Edited October 8, 2011 by traxx2003 Quote Link to comment Share on other sites More sharing options...
coryv4 Posted October 8, 2011 Report Share Posted October 8, 2011 I found this compression chart (NOSS) that, if accurate, the compression of my enigne is not that far off from what it should be at, considering that the elevation were I leave is 2360 feet. According to the chart,@ 2000' compression=118psi on stock motor. Mine @2360'= 105psi. Chart Link: http://www.nossmachine.com/banshee_heads.htm 105 isnt bad for you elavation its getting there tho just toss some new rings in it. Quote Link to comment Share on other sites More sharing options...
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