Honda CT90 Engine Reassembly

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I have one 1971 CT90 where I was going to rebuild the clutch because the kickstarter just wasn't turning over the engine like it used too,  and I also had a Big Bore kit from DrATV that I wanted to install. My intent was to just do the top end and rebuild the clutch with new disks, but when I opened up the cases to rebuild the clutch pack I found a slick black slime in the bottom of the case.  I didn't like the idea that there could be black slime in the rest of the engine, so I decided to disassemble the entire engine to make sure I cleaned everything out.  Since I was tearing everything apart I thought I would document step by step how everything goes back together in this post in case others were interested in knowing what the inner workings of a CT90 engine look like. Links to Related Posts: My Honda CT90 Clutch and Headset Nut Tool Cut Away of a CT90 Engine - CT90 Engine Exposed! Repairing Damaged CT90 Spark Plug Threads Using a Time-Sert Thread Insert CT90 Cl...
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One of my favorite things - RuGLYDE

One of the things that can make working on your CT90 that much easier is RuGLYDE. RuGLYDE is a rubber lubricant sold by Napa that comes in handy working with just about anything rubber on your bike.




RuGLYDE sells for about $18.00 a gallon and a little goes a long way, so a gallon will last most people about ten years. One of the primary things I use RuGLYDE for is mounting tires and it really makes changing a tire an easy job.  One of the nice things about RuGLYDE is that the excellent lubricity that it has (and this stuff is very slippery...) doesn't last forever, so when your mounting a tire  the RuGLYDE is slippery while you are using it, but not to long afterwards the RuGLYDE dissipates and the high friction between the tire and the rim remain which is what you want. I have used RuGLDE to install grips and rubber foot peg covers and never had an issue with those items slipping back off after they were installed and give a little time for the RuGLYDE to dissipate.

RuGLYDE also works great for bringing back to life an old rubber component by rubbing RuGLYDE into the surface of the part.

Once you get a gallon of RuGLYDE in your shop you'll find that you end up using it for all sorts of applications and it really is very handy to have around.


Helpful Links  (Shop Manuals, Wire Diagram, Model Information, etc.)

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