Banshee802 Posted February 28, 2022 Report Share Posted February 28, 2022 I just got a new banshee. I was told it was a 4 mill, but that was it. I pulled the spark plugs out and measured the stroke and got 58mm. I also found that the numbers on the pistons are 795M06500. This means it’s a 4 mill 385cc right?? Also does anyone know what the compression is supposed to be for this setup? It’s got stock carbs, reeds, and appears to be a stock head. It had a 300 main and a 22.5 pilot which i think is way too small for this setup Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
375hp banshees Posted February 28, 2022 Report Share Posted February 28, 2022 Yes 115 rod Lotta variables to guess compression , are they the same? Quote Link to comment Share on other sites More sharing options...
Banshee802 Posted February 28, 2022 Author Report Share Posted February 28, 2022 Yes 115 rod Lotta variables to guess compression , are they the same?I did a leak down and compression test. Held 10psi for over 15min so all seals are good. Compression was 127psi on left and 129 psi on right. Seems a bit low to me but fires first kick. Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
kawa110 Posted February 28, 2022 Report Share Posted February 28, 2022 Spacer plate? Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
Banshee802 Posted February 28, 2022 Author Report Share Posted February 28, 2022 Spacer plate? Sent from my iPhone using TapatalkI checked but doesn’t appear to have oneSent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
375hp banshees Posted February 28, 2022 Report Share Posted February 28, 2022 Could be acceptable depending on elevation... When you did the leak down did you look inside the exhaust and inspect the cylinder condition? Quote Link to comment Share on other sites More sharing options...
Banshee802 Posted February 28, 2022 Author Report Share Posted February 28, 2022 Could be acceptable depending on elevation... When you did the leak down did you look inside the exhaust and inspect the cylinder condition?Gonna be riding at elevation 0-1000ft. Cylinders had visible crosshatching with minimal scoring. Exhaust side piston skirts looked like new. Burn pattern on piston crown looks good I think? Quote Link to comment Share on other sites More sharing options...
gusto Posted March 1, 2022 Report Share Posted March 1, 2022 Looks good, compression is good, run it 1 Quote Link to comment Share on other sites More sharing options...
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