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Are these camshafts OEM?

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When I got my bike last spring, I was told that it had the 3x3 mod, slip-on exhaust, and Stage 1 Hotcams.

I didn't really believe the guy about the cams, as I expected to replace them myself eventually anyway.

I just checked my valve clearances, going from the OEM standards. I got some new shims and they're back in spec.

I just want to make sure that these are stock cams and not Hotcams or anything else. Is there any way to tell?

5736244267_f89c78ab53_b.jpg

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Show us the sprocket side

I will I have absolutely have to. I already bolted everything back up.

I realized after that I didn't take a pic of the sprocket side. :smirk:

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The fact that it has the Auto Decomp does not bode well...but there are some Hot Cams that still had the decomp.

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The fact that it has the Auto Decomp does not bode well...but there are some Hot Cams that still had the decomp.

The "new" HotCams stage 1 (like these i have) have the auto decomp.

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If these are Hotcams, and I have them shimmed to OEM cam specs, would it cause all of the extra noise I'm hearing from my bike?

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nobles suggestion is good - adjustable sprockets - they're hc's.

never owned the stage 1 hc's, but they look oem to me.

i would think we would be able to see the bolts for the adjustable sprockets peeking out from behind - i don;t see them.

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They look exactly like the set of E model cams I have sitting in my garage. But hard to know for certain without seeing the sprocket faces, as already stated.

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Did you shim them loose or tight? Loose is noisier than tight.

They're shimmed to the loosest OEM clearance. I forget the numbers at the moment, I'm at work.

Maybe that's what it is then. If they're standard SM cams, then they're in spec, to the largest clearance.

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I shimmed mine middle of the road. I'm going back in to shim them tighter because they are just too noisy for my liking.

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I switched to a lighter weight oil, and that seemed to help a little. I'm just going to roll with it. Since I've posted these threads, I've seen about 10 other videos of people's DRZ's that sound worse, and nothing is wrong.

Eff it. I think I just had post rebuild paranoia. That was my first time working on anything inside the head.

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