Posts

Showing posts from 2020

Honda CT90 Engine Reassembly

Image
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 Clutch P
6 comments
Read more

Aftermarket Honda CT90 Carburetor Drain Modification

Image
Relocating the Drain on a Aftermarket Honda CT90 Carburetor  I recently picked up an aftermarket carb for one of my CT90's off of eBay that is very similar in design to a Klein 556A carburetor except for one detail and that was the orientation of the drain fitting.  The drain fitting pointed straight down verses straight back and is a common issue with aftermarket CT90 carbs. Related Posts: Adjusting and Jetting a Honda CT90 Carburetor  Here is a picture with the old carb on the left and the new carb on the right.
4 comments
Read more

Honda CT90 and CT200 Gas Cap Teardown

Image
Honda CT90 and CT200 Gas Cap Teardown One of the most over looked elements of a Honda CT90 or CT200 fuel system is the gas cap used on the gas tank.  The gas cap plays a critical role and is designed to allow air to enter the tank and prevent a vacuum from forming as fuel is used by the engine as the CT90 uses a gravity feed fuel system.  While allowing the tank to vent air the gas cap also utilizes a labyrinth design to minimize the gas fumes that can escape from the tank. 
Post a Comment
Read more

Adjusting the Clutch on a Honda CT90

Image
I recently did the video at the link below on how to adjust the clutch on a Honda CT90.  The method I show in the video would apply to Honda CT200's and many other Hondas that have an automatic clutch. I hope you find the video helpful. Helpful Links  (Shop Manuals, Wire Diagram, Model Information, etc.) Link to page with listing of CT90 and CT200 parts available on Amazon
1 comment
Read more

Registering a Small Motorcycle in the State of Vermont

Image
UPDATE: Recently the State of Vermont eliminated the method I describe below for registering out of state vehicles, which is very  unfortunate (it really sucks!).  I don't know of another option that is comparable to what was available with Vermont, but West Virginia just implemented a new program that allows out of state businesses to register vehicles in that state, so hopefully in the future that process will be expanded to include out of state individuals also. Registering a Honda CT90 in Vermont This post shares in detail my experience in going through the process to register a Honda CT90 in the state of Vermont and then take that registration and use it to get a title here in the state of Washington.  I'll explain the process and then share actual copies of the my completed application and what I received back from the Vermont DMV. I have purchased a number of CT90's that didn't have a title and with the ones that I planned on keeping, I have gone through the
6 comments
Read more