XS650 stainless steel engine hardware

Zion Johnson

XS650 New Member
Messages
3
Reaction score
0
Points
1
Location
Ocala,Fl
So I've been looking for stainless steel acorn nuts for my engine and so far I've only found the head nuts from mikesxs and the allen head bolts from alloy bolts. Does anyone have any suggestions?
 

toglhot

First class butcher.
Top Contributor
Messages
542
Reaction score
1,836
Points
143
Location
Adelaide
Just take measurements of the bolts you need and take them to any stainless fastener shop. It will work out a lot cheaper than buying a kit, The only acorn nuts that are unusual are the 8 rocker nuts. Take your old one in and get them re chromed
 

jpdevol

Hacker of Frames,Wires and other things
Top Contributor
XS650.com Supporter
Messages
2,109
Reaction score
4,942
Points
263
Location
26187
Even the odd shaped acorns ?

If you're talking about the acorns on the lower crankcase - 6mm that are 19mm deep, I don't think I've seen those in stainless. Mike's has them in chrome and CMSNL has them in original finish.

Mike's also has reasonable facsimile of the tappet cover acorns in stainless.
https://www.mikesxs.net/search?q=acorn
 

toglhot

First class butcher.
Top Contributor
Messages
542
Reaction score
1,836
Points
143
Location
Adelaide
I have a 74, the lower nuts on the sump filter plate were just ordinary nuts which I replaced with nylocs. The holes in the crankcase for the sump filter plate holes are blind holes, were these open on earler models?
 

dps650rider

XS650 Addict
Messages
332
Reaction score
304
Points
63
Location
Pennsylvania
Is stainless OK for things like head nuts? I thought it had a lower tensile strength that steel.

I one bought a set of steel engine fasteners from Mikes, was not impressed with the quality and never used them for anything critical.
 

Jim

Beyond the edge is the unknown. Here be Dragons
Top Contributor
XS650.com Supporter
Messages
13,368
Reaction score
51,271
Points
813
Location
Kansas City Mo.
Is stainless OK for things like head nuts? I thought it had a lower tensile strength that steel.
Depends on the grade of stainless we're talking about. 18-8 or 304 has slightly lower tensile strength compare to mild steel... but only slightly. They would be more than strong enough for head fasteners.
 

5twins

XS650 Guru
Top Contributor
Messages
23,850
Reaction score
20,314
Points
813
Pretty much all the acorns are still available from Yamaha but at $5 to $6 each, they're not cheap, lol. And the ones for the exhaust studs are ridiculously expensive, like $12 each.
 

willis

xsive compulsive disorder
Top Contributor
XS650.com Supporter
Messages
2,097
Reaction score
5,062
Points
513
Location
Northern Indiana
Aren’t the exhaust and rocker studs the same thread? I once put the rocker nuts on the exhaust when I couldn’t find the proper nuts on a mock up. I liked how beefy they looked.
 
Top