jonboatman
Cadet
- Joined
- Mar 8, 2003
- Messages
- 7
Hello all,<br />I looked further into the motor while I was cleaning it, and I found where someone did a odd thing with the fuel pump. They took a piece of 1/4 steel and mounted the pump to it, and they mounted the pump to the side of the motor over one of the plates that covers the bottom of the cylinder. They then drilled a hole in the plate, I guess so the pump would see vaccuum.<br /><br />Does anyone know where the pump should mount? The motor ran good the last time it was used, so I wonder what the deal is with this repair. I wonder if someone didn't change it to a more common pump.<br /><br />Also, the cylinders look good and there is no ring groove. How often do the rings need replacing in these type of motors? The pistons have 3 rings, is that a good thing? <br /><br />Which leads me to another ?. Are 3 compression rings the norm on a 2 stroke engine. I know in the automotive world we only have 2 compression rings, and only 1 of them is designed primarily for compression sealing. The other is mainly for oil control. There is a lot of talk about compression getting trapped in between the top and second rings and causing the ring pack to flutter and loose a lot of compression in a running engine. But that is on 4 stroke automotive race engines which see really high loads and high cranking compression above 200 psi. It may not apply to the two stroke. Anybody know??<br /><br />Thanks for any help.
