and my buddy was just talking about his leak down testers today.... As a matter of fact there sitting on my nav station right now.....
sorry, not constructive, just an observation paul -----Original Message----- Date: Monday, April 18, 2011 10:06:47 pm To: <[email protected]> From: "Gene Henry" <[email protected]> Subject: Re: [Nighthawk Lovers] Need some help - I think the GS-1000 has a major issue Attachments: image_2899.jpg (10 KB) A quart in 70 miles should leave a terrible smokescreen behind you that you couldn't see through! Did the oil usage occur suddenly with the last oil change? If so, that is very suspicious. (I won't even ask if you put the right amount in. I promise!) Is there no evidence of leaking oil under where the bike is stored? Put a clean/dry piece of paper/cardboard under it. Look for oil hanging/dripping anywhere. I can't believe you are burning that much. Before you jump to (expensive) conclusions, do a compression test: Fully charged battery, charger still hooked up. Engine warmed up, but not too hot to work around. All sparkplugs out. With throttle held full open, measure and record compression pressure for each cylinder. Compare to specs. On my '84 650 "standard" is 170 psi, "service limit" is 156-185 psi. Temp variations. Add about an ounce of motor oil to each cylinder and recheck/record each cylinders compression readings. Compression reading low on one or more cylinder? Suspect problem in that/those cylinders. Compression low in any or all cylinders but improves with addition of oil? Suspect rings, which addition of oil improves. Compression low in any or all cylinders but doesn't improve with addition of oil? Suspect valve problem which oil won't help. Better test is a cylinder leak down test, where each piston is turned to TDC (Top Dead Center) to insure all valves are closed and the tester is turned into the spark plug hole and compressed air is added to each cylinder in turn and pressure drop timed and recorded. The rate of leak down determines the cause of the problem and its severity. Would you guess it is available Harbor Freight Tools: Cylinder Leak-Down Tester Item #94190 Only:$39.99 (less 25% Easter Sunday!) Hope this will help. ----- Original Message ----- From: Joey Kelley To: [email protected] Sent: Monday, April 18, 2011 7:53 PM Subject: [Nighthawk Lovers] Need some help - I think the GS-1000 has a major issue Hello All, Discovered today in the 140 odd miles since I did an oil change the GS-1000 has apparently burned at least two quarts of oil. (Thats all I had - so I know it burned that much) This jives with the changing oil level I noticed and the black spark plugs. I thought it might be dumping raw fuel into the crankcase, but I pulled the carb drain plugs and with the petcock in the normal (vacuum activated) position, no fuel leaked after the carb bowls drained. I'm now fearing the worst - that the engine will have to be completely rebuilt from the block up - but I'm hoping that someone here can talk me down from that. Thoughts and encouragement? -Joey -- -Joey Kelley JoeyKelley.com - My Life Online JoeyFixesComputers.com - Its What I Do! JoeyKelleyPhoto.com - Photographing Today, For Tomorrow -- You received this message because you are subscribed to the Google Groups "Nighthawk Motorcycle Lovers!" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/nighthawk_lovers?hl=en. -- You received this message because you are subscribed to the Google Groups "Nighthawk Motorcycle Lovers!" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/nighthawk_lovers?hl=en. -- You received this message because you are subscribed to the Google Groups "Nighthawk Motorcycle Lovers!" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/nighthawk_lovers?hl=en.
