Super Jet are the yamaha pro-x crankshaft seals any good?

[jetfreak78]

i need new crank seals. should i use the pro-x kit or is OEM the only way to go?

 

[JetManiac]

I think the consensus here on the X is to only use oem seals. They aren't that much more than a/m seals and are very important to engine performance.

For comparison, we sell a/m seal kits for 22. and oem sets for 42.

 

[chriselmore_1]

I've built 3 motors with jetmaniacs am seals with no problems... And have swamped my motors a ton of times...