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Showing posts from October, 2019

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...

For Sale - The Original Made in the USA CT90, CT110 & CT200 Clutch and Headset Nut Tool

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As of 4/4/2022 I have decided that I will no longer make these clutch holding tools.  I have  provided a file of my design that would enable you to make you own copy of the tool here at this link . As of May 26th of 2021 I am now out of stock of my tool.  I am looking into making another batch, but the outfit I use to laser cut my tool has increased their prices significantly to where it may not be worth the effort to continue to try and sell my tools, especially given how cheap the knock off of my tools are coming out of China.  I'll update this post if I do end up producing another batch. I do want to thank everyone who has purchased one of my tools as it has been an enjoyable experience (except for the knock off's from China...) and I hope you have found the tools useful.  When working on a Honda CT90 two of the most frustrating things can be trying to hold the clutch basket while loosening the nut that holds it on and also loosening the special headset...

Product Review - Memotronics ELF33-6 Turn Signal Flasher

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I have a 1975 CT90 that I have never had the turn signals work all that well even though I replaced all the bulbs, picked up a new stock flasher, and cleaned the truncates signal switch and also went through and checked and cleaned all the grounds. While I did get some improvement after taking all of the steps described previously, they still didn't work like they should, so I decided that I would take the next step and look at converting my turn signals to LED bulbs. In making the change to LED's I knew it couldn't't be a straight swap of the bulbs only and that I would need to change the flasher to a configuration that wouldn't be dependent on the resistive load of the bulbs to cause the flasher to function like with a stock CT90 flasher.  So I figured I would do the upgrade in stages and first buy a new flasher that works with LED's and with a little searching on Amazon I found the Memotronics ELF33-6 Turn Signal Flasher that had good reviews.