TeddyG
Hero member
- Location
- Portland Oregon
Thank you once again,
That boroscope doesn't give crystal clear images so it's difficult to tell how deep those marks are, but a few scratches look fairly deep. I did another compression test this time w the throttle wide open and got 175/160 lbs. A leak down test at 40 lbs showed almost equal values. I might do another leak down test at 100 lbs if I can keep the motor from advancing by putting the bike on the side stand and depress the rear brake. So perhaps the cylinder marks I’m seeing aren’t that bad and my plan is to continue riding it w periodic boroscope views plus an oil analysis to monitor any changes.
That boroscope doesn't give crystal clear images so it's difficult to tell how deep those marks are, but a few scratches look fairly deep. I did another compression test this time w the throttle wide open and got 175/160 lbs. A leak down test at 40 lbs showed almost equal values. I might do another leak down test at 100 lbs if I can keep the motor from advancing by putting the bike on the side stand and depress the rear brake. So perhaps the cylinder marks I’m seeing aren’t that bad and my plan is to continue riding it w periodic boroscope views plus an oil analysis to monitor any changes.
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