I have a frozen fuel pump (old oil/gas mix setting up) on my Yamaha 150 PX150TLRX. It sat for several years and I'm trying to resuscitate.

I've removed fuel pump from vapor separation tank and bench tested w/ 12V. It will bump slightly but not run. I've tried following stategies; throttle body cleaner, WD40, mineral spirits, vibration (firm raps on vise anvil), and heat from heat gun to about 150F.

It has improved slightly in that the bump is somewhat longer/firmer, however it will not run.

I'm about to cry calf-roped and buy a new pump. OEM is $300-$500, but I found an aftermarket for about $100.

Question: Has anyone had any luck w/ freeing up such a pump w/ something I haven't tried. Any suggestions?

thanks

 

I freed up a frozen engine once with coke. Let it sit over night and the next day I could spin it.

 

Yea, coke will eat thru all kinds of things.

How long did you soak it in the cleaners? An overnight bath in seafoam (with a "stir" every now and then) or some other cleaner, just some might start to eat the wires and that?

Then I hate to say it but it might be time to throw in the towel........

 

Yes, I soaked several hrs in each of the solutions. Overnight w/ WD40 which made some difference.

I punted this PM and ordered the part. I fiddled away too much time attempting to salvage.

thanks

 

Good for you..New part is good thing ..TH