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The 2-Stroke Garage => Turning Wrenches => Topic started by: Vintagewannabe on August 31, 2026, 01:45:29 PM

Title: More RD350 torque specs
Post by: Vintagewannabe on August 31, 2026, 01:45:29 PM
I am on the re-assembly side of a full rebuild on my 73 RD350 motor, and had a couple torque spec questions. For the clutch nut and the primary gear nut, my old clymer manual says 29-32 ftlbs. The only other thing on here I could find was someone saying it should be 50. Should I just stick with the manual?
I also couldn't find a spec for the long bolt for the flywheel. Its 7mm, and the manual says 90 inlb for 6mm, and 180 for 8mm, so I just put it at 150 in lb. Any issue or insight on that?
Title: Re: More RD350 torque specs
Post by: Kawtriplefreak on August 31, 2026, 05:37:55 PM
Not correct I am sure, but I use a touch of blue Loctite and my butterfly impact and let it rap good a couple times for those.
Title: Re: More RD350 torque specs
Post by: m in sc on August 31, 2026, 05:52:40 PM
id go 30 w the crank nut, and a touch of loctite like timmy says, also, the 7mm is about 10ft lbs.
Title: Re: More RD350 torque specs
Post by: Vintagewannabe on September 01, 2026, 10:26:21 AM
That definitely scares me a bit to tighten that down with an impact on the crank  :lol:
But thats good, I'll pull them back off and give a bit of loctite.
And it sounds like I was just a bit heavy on the 7mm bolt, I did 12.5 ft lb
Title: Re: More RD350 torque specs
Post by: m in sc on September 01, 2026, 10:46:33 AM
its fine either way.