Ok, so someone brought me a 79 CX500D to work on. Said there was an oil leak. Turns out, the crankcase was filling with fuel, completely full and the mixture was spewing out everywhere.
Simple, it means the float needles are sticking open, right?
I get it apart and pull the needles out. The needles are not rubber tipped (but dont have any indication that they ever were, they look like any solid metal needle should. But the real kicker is that there isnt a rubber O-ring seat for the needle to seal against. Obviously, a stainless needle wont seal against a brass seat, so something is wrong here.
Either someone bastardized this thing with incorrect parts or the rubber seats fell out in a carb cleaning. The owner denies anyone having worked on it, claiming it just suddenly started doing this. I know its bullshit, but whatever. The funny thing is that he rode it like this until the leaking got "pretty bad"...well no shit dude! There was a quart of oily gas in the airbox too.
SO, my question is simple. I was under the impression that all the needles were the same for all the CX500's (rubber tipped).
If they arent, I am not seeing a rubber seat for this model of CX in the parts fiche. Both carbs have the same issue, so it isnt like one side disintegrated.
I am pretty sure I can just order a set of the needles and install them, and all will be well. I only planned on buying OEM here, I've read some horror stories about aftermarket ones.
Classic case of a dumbass with a wrench doing his buddy a favor. I know the owner didnt personally work on it, but its obvious someone else had.
On a side note, what is at the top of the block that would start to spew oil upon extreme overfilling? I really dont have any motivation to pull the motor to start chasing an oil leak that probably only surfaced because the block was FULL of oily fuel.....
Simple, it means the float needles are sticking open, right?
I get it apart and pull the needles out. The needles are not rubber tipped (but dont have any indication that they ever were, they look like any solid metal needle should. But the real kicker is that there isnt a rubber O-ring seat for the needle to seal against. Obviously, a stainless needle wont seal against a brass seat, so something is wrong here.
Either someone bastardized this thing with incorrect parts or the rubber seats fell out in a carb cleaning. The owner denies anyone having worked on it, claiming it just suddenly started doing this. I know its bullshit, but whatever. The funny thing is that he rode it like this until the leaking got "pretty bad"...well no shit dude! There was a quart of oily gas in the airbox too.
SO, my question is simple. I was under the impression that all the needles were the same for all the CX500's (rubber tipped).
If they arent, I am not seeing a rubber seat for this model of CX in the parts fiche. Both carbs have the same issue, so it isnt like one side disintegrated.
I am pretty sure I can just order a set of the needles and install them, and all will be well. I only planned on buying OEM here, I've read some horror stories about aftermarket ones.
Classic case of a dumbass with a wrench doing his buddy a favor. I know the owner didnt personally work on it, but its obvious someone else had.
On a side note, what is at the top of the block that would start to spew oil upon extreme overfilling? I really dont have any motivation to pull the motor to start chasing an oil leak that probably only surfaced because the block was FULL of oily fuel.....