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Join Date: Nov 2007
Location: Chandler, Arizona
I agree, at 165, you have plenty of compression. BTW, you only need to check it in two places. There are only 2 cylinders, so you will get the same reading no matter which side you check them on. Now I would suspect valve guide seals. What weight oil are you using? I recommend 20w50. The thinner the oil, the easier it is for it to leak past seals. If you can afford it, you could even try 60w racing oil. I wouldn't leave it in there too long, just see if it smokes less with it. If you can drain it out without contaminating it, you can put it back in the jug, and mix some with regular oil at every oil change.
I have a 1964 Ford with leaking valve guide seals. It has plenty of compression, but it still smokes, especially on startup, and burns oil. I decided not to do anything with it, because the oil leaking past the valves actually helps lubricate them, and help prevent damage from ethanol gas.
I would just go ahead and ride it a while, and see if the smoking stops. About the worst it can do is foul plugs.
I am a motorcyclist, NOT a biker.
1997 Vulcan 750, purchased about a week ago
2006 Sportster 1200 Low
2013 Royal Enfield Bullet 500, converted to carb
2001 Yamaha XT225, heavily modified
2004 Honda Rebel 250
1979 Vespa P200E
2002 Vulcan 750 parts bike
1994 Yamaha XT225 parts bike