The girlfriend and I picked up a 1993 SL750 from her neighbor for 300 bucks summer of 2012. Was informed it melted 1 piston and dealer fixed it. So before our first ride i decided to clean the carbs and make sure it was ready to go. Discovered the dealer did a half assed job fixing it up. All they did was put 1 new piston in, rejetted only the one carb and put a cooler spark plug in only the 1 cylinder.
We took the machine out that summer and rode it 2 times i believe. It ran ok but definitely not like it should...never left us stranded and never got towed back. Long story short parked it for the rest of summer....sat for the remainder of 2012 and we didn't even touch it all of 2013.
Got bored this afternoon and compression tested it. Cylinder 1,2 are 60 psi and cylinder 3 was 80 psi. Spec is 120-135 psi. Cylinder 3 was the one replace and from what I was told cylinder 1 and 2 have never seen new pistons. All original...way over due for a top end rebuild. So i started pulling the top end apart and ran out of daylight pretty quick. Cylinders all look good but the case is completely full of water. Engine spins freely...hoping i can pull the engine apart, clean it up and oil everything, throw new top end in and call it a day.
Question is where did all that water come from?? As far as I can remember I never hooked the hose up to this engine and ran it on the trailer. 300 bucks should get me going but if it needs new crank and the whole 9 yards then i doubt i will mess with it and just cut our losses.
you guys think cleaning it up and a new top end will get the ol girl going again?
We took the machine out that summer and rode it 2 times i believe. It ran ok but definitely not like it should...never left us stranded and never got towed back. Long story short parked it for the rest of summer....sat for the remainder of 2012 and we didn't even touch it all of 2013.
Got bored this afternoon and compression tested it. Cylinder 1,2 are 60 psi and cylinder 3 was 80 psi. Spec is 120-135 psi. Cylinder 3 was the one replace and from what I was told cylinder 1 and 2 have never seen new pistons. All original...way over due for a top end rebuild. So i started pulling the top end apart and ran out of daylight pretty quick. Cylinders all look good but the case is completely full of water. Engine spins freely...hoping i can pull the engine apart, clean it up and oil everything, throw new top end in and call it a day.
Question is where did all that water come from?? As far as I can remember I never hooked the hose up to this engine and ran it on the trailer. 300 bucks should get me going but if it needs new crank and the whole 9 yards then i doubt i will mess with it and just cut our losses.
you guys think cleaning it up and a new top end will get the ol girl going again?