Been some time since I posted on this forum. Good thing, because everything was going fine. The GS650 however started to, noticeably, burn more oil. Driving behind it on my GS450E wasn't pleasant.
So I went ahead and got myself a compression meter. The results are labelled 1 to 4, with number 1 representing the left most cylinder and 4 the right most, from the driver's perspective.
See post on page 2.
Am I correct in assuming that my valves are not leaky? This looks to me like a piston issue. Next the spark plugs:
1 -

2 -

3 -

4 -

Yes, there was actual gunk on sparkplug 1... The oil is being burned in the left exhaust (clearly visible while driving). So 1 and/or 2 are burning oil noticeably.
Gee, what should I do with this one? Looks to me it is in pretty rough shape...
The motorcycle itself is rarely used, once a month maybe. My mother drives around on it, myself maybe once a year after pulling it from storage. It is a 1981 GS650GL and has been in our possession since 2 years I believe. Before that an older man owned it who barely drove it as well (back problems, said he'd go around the block once a month with it). First known owner was his son who imported it from the USA, he worked there for a few years and bought it there from someone... not much is known from the son or the unknown previous owner.
Comment