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Discussion Starter #1
Next Question; Where can I get the 16mm socket to remove the Clutch retainer nut on the S90. It should have 4 tangs that fit into the nut. I tried to make one out of an old socket but it was too brittle once I cut out the reliefs.

Also, do I need other retainer/holder tools once I get that off. It looks like I can make a pin wrench to hold the clutch body, but maybe that's not the way to go?...

Oh, and Merry Christmas from this Heathen...
 

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The tool is made by Motion Pro... and your honda dealer probably has a "honda" brand tool...and you see them cheap on ebay. Careful you don't buy the other one that fits the crankshaft on larger bikes.

A good way to "lock" things up so you can get things apart is to wedge a penny in the primary gears.

JohnnyB
 

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Discussion Starter #3
Thanks, I should've guessed Motion Pro.

FR
 

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Discussion Starter #4
Ok, sooo, on to another somewhat related topic...
What's the general consensus (if there is one) about replacing Philips Head case screws with Allen Head?
Any reason not to?

FR
 

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I do it as a matter of course on every engine I build. Usually with a quality Stainless Sockethead. A person just needs a good selection to get the proper length. The engine covers on a lot of small Hondas add considerably to the integrity of the whole crankcase. I like to torque them down properly and you can do that with the crappy old phillips screws.
JohnnyB
 

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Discussion Starter #6
Excellent point about torque. Hadn't thought of that. Especially considering that the footpegs are bolted to the cases, which, depending on the rider, can add a lot of stress to those cases. I was considering trying to fab up some rearsets for the S90, but there isn't a whole lot of frame back there to work with, so it'd still use the engine case mounts.

I also just found out that the S90 piston is interchangeable with CB160/175 piston. Interesting, eh...
I'm gaining new respect for this 'ol motor

FR
 

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Frank,
They are actually very good little motors...good enough that Honda sold HRC race kits for them.
I sent you an email with some info concerning the pegs.
JohnnyB
 

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Discussion Starter #8
Thanks John.
I don't have any experiance with rearsets, so it's cool to see some different solutions.
My son Scott would like to run the Motogiro if they do it this year.


FR
 
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