redeclispe
New Member
Can I use a different size rotary valve for me 580 engine, I got one from a junk dealer and it came out of a Yellow engine seadoo with the rotary valve cover. the cover is exactly the same size as mine, but the rotary valve has a wider opening to it than mine, my other SP has a original part size in it, I do not have a timing wheel either, but I am just going off of top dead center of my other running ski and rotary setting corrosponding in relation to TDC..Thanks
