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Discussion Starter #1
Just bought a mint 99 Sno Pro. Previous owner installed a D&D clutch kit for "98-2001 Sno Pro Trail"(helix, both springs, and new wts), 1.25 studded track (96), one tooth taller gear (for longer legs on the ice), motor is stock. Furnished D&D paperwork states 5600 engagement with shift at 8500, but actual is 4700/8300. My first rides around the field after warm up showed she was sluggish getting back into WOT at the low end, a little less at mid-range. I do need to clean the valves to be sure about that first. Once warmed well, motor sounds crisp, idles really well (idle is set fairly high at 2500-3000, I need to look again).

1) What solvents can I use for cleaning these valves?

2) What could I do to bring up that engagement?

3) How much is that gear impacting the low end?

I'm thinking that if I can raise that engagement, I might also help my low-mid end sluggish bog, right? It's been awhile since I had to clutch anything. My other sled was perfect out of the box (02 6CC fuely). This one is going to contain this 440 motor until I turn it into a project big bore. Until then, I want it to run well as is. Thanks.
 

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Valves? I think brake cleaner should work.
 
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