Vizzinzin
XS650 Member
Hi I'm a new member to the forum and have been lurking for quite a while but finally need to make my first post...
I recently purchased a 1978 xs650E (2F0-000101 type Vin) so an early model with the original engine in it and I'm having a bit of a problem with a compression test.
So the bike I have is running and I have seen it run/started it myself but it's definitely a reluctant to do so and thus I opted to do the compression test cold. I'd also like to change oil/clean gas tank and a number of other things before I start running it regularly. The battery is also dead so I figured I could kick it to build compression. I removed the spark plugs and attached the gauge and proceeded to kick with the throttle completely open and there was no compression... It would occasionally jump up in pressure but it wasn't holding. It's also worth noting since I attempted this I removed the gas tank if that has any relevance at all.
My understanding is I need to open the slides and try again. I'm EXTREMELY green to mechanics here and was wondering if someone would point me in the right direction to do this correctly. I have the oem manual and a clymer but figure someone could assist me much easier than me digging through the diagrams. I (believe?) I have to take the airbox off to access them but just want to be sure.
Any assistance would be appreciated and apologies for my lack of understanding in the matter. All I want to do is learn and understand! Unfortunately I won't be back home until tomorrow but would appreciate any good literature/comments.
Thanks!
I recently purchased a 1978 xs650E (2F0-000101 type Vin) so an early model with the original engine in it and I'm having a bit of a problem with a compression test.
So the bike I have is running and I have seen it run/started it myself but it's definitely a reluctant to do so and thus I opted to do the compression test cold. I'd also like to change oil/clean gas tank and a number of other things before I start running it regularly. The battery is also dead so I figured I could kick it to build compression. I removed the spark plugs and attached the gauge and proceeded to kick with the throttle completely open and there was no compression... It would occasionally jump up in pressure but it wasn't holding. It's also worth noting since I attempted this I removed the gas tank if that has any relevance at all.
My understanding is I need to open the slides and try again. I'm EXTREMELY green to mechanics here and was wondering if someone would point me in the right direction to do this correctly. I have the oem manual and a clymer but figure someone could assist me much easier than me digging through the diagrams. I (believe?) I have to take the airbox off to access them but just want to be sure.
Any assistance would be appreciated and apologies for my lack of understanding in the matter. All I want to do is learn and understand! Unfortunately I won't be back home until tomorrow but would appreciate any good literature/comments.
Thanks!