Riding a CRF150! A Psyco Used Bike Test Ride!

The last week or two I’ve had the privilege of having a really nice super clean late model Honda CRF150 visiting my stable for a tune up & fresh front inner tube. Since this model is still in production and seems to be the replacement for the venerable old XR200, I though I would take it for a spin. Plus it been years since I’ve had the chance to ride an “adult size” off road motorcycle.

left side view Honda CRF150

left side view Honda CRF150

One thing needs to be totally clear to anyone looking at one of these, they are play bikes first and foremost not motocrossers. The power is low, the front tire is a 19″ etc. Yes I know they get raced in the mini class but those are usually heavily modified. There is a version with the smaller wheelset for the more advanced young riders. I got to admit though with the right suspension mods and tires this thing would make one heck of a trainer for flat track or supermoto racing. If anyone has tried it send me some information, I’d like to see your set up.

Like most of us out here on the east coast I was a woods rider when I was riding dirtbikes on a more regular basis so that is how I am evaluating this bike. Nothing like running a slalom course through a bunch of Loblolly pines while bouncing over tree roots and sliding around in the leaves and pine needles. Did I mention there were a lot of thorns too? Nothing like having completely fixed and  immovable objects to possibly crash into with a motorcycle that you don’t own to get your blood flowing!

a Honda CRF 150 in the briar patch

a Honda CRF 150 in the briar patch

In the woods almost everything was just fine. Right away I could tell the suspension was definitely not set up for shall we say a “bulky” man to ride and if I tried to sit down and ride the forks would bottom out with surprising regularity. The engine has enough grunt and is geared right but chassis just isn’t up to the task of dealing with 235 pounds of fine middle aged stud sitting in the drivers seat.

a large man on a small motorcycle

a large man on a small motorcycle

Still it was a fun ride as long as I remembered to stand up on the pegs going into the rough stuff.

<standing on the pegs for picture>

As long as I kept the revs up and remembered that I could not power wheelie over fallen logs & stuff like that I had a really enjoyable couple of hours threading it through the woods and around the cornfields.

through the woods on a CRF150

through the woods on a CRF150

pine tree slalom

pine tree slalom

Then I decided to hit the dirt roads and see how it felt in the sand & the gravel at (relatively) high speed. This one wearing the original Pirelli tires and on the long sandy stretches of it was nice and stable, even holding the throttle pinned in fifth gear. The only problem was that at wide open throttle in high gear you may may be going fast enough to get hurt if you crash, but you are definitely not going fast enough to get an experienced rider’s heart rate up. When I got to the loose gravel sections though I was kinda glad to be going slow as the front end felt busy. There was never any imminently dangerous or unstable feeling, it was just a little twitchy as the rocks slid around under the tires.

Did I forget to mention the most important advantage that this and an increasing number of other modern dirtbikes have over the old ones?

magic-button-crf150

magic-button-CRF150

Yep that little magic button on the handlebar to fire it up for you. What a wonderful thing for us old guys who have had our crash damaged knees replaced with not quite as good as original equipment parts. The engine is your typical cold natured Honda & wants a good warm up before it will idle, other than that the fueling and throttle response was excellent. Shim under bucket valve adjustment means that you will seldom have to actually adjust the valves unless you are extremely cruel to your equipment or if you modify or overhaul the engine. Just feed it right, oil it, and keep the battery charged when you are not riding it and it will probably last for decades.

Normally I would recommend this bike to anyone whom has just outgrown their 80 or 100 but is not ready to move on up to a 250 class machine or to a lady of petite stature. How ever there is one other class of folks who could benefit from either this bike or it’s CRF230 stablemate. I am talking to all of you parents out there, when you get your kid an off road motorcycle, get one of these for yourself so that you can ride with them. Do it! Going trail riding on a regular basis with you child is the most fun the two of you can have. Don’t take my word for it, just ask my daughter.

Peace Y’all

Use the Right Tool for the Job! A Tech Tip & Product Review Combined!

It is time for me to make a confession of my own ignorance. For over two decades I have not been using the correct screwdrivers to work on my beloved old rice grinders. Even during the time I worked as a dealership mechanic I destroyed countless fasteners by using the wrong screwdrivers. I did find by experience, that the really high quality & expensive Snap On brand could usually remove those annoying cheesy easy to strip cheap ass Japanese Phillips screws. But even then the heads still looked mangled for some reason.  Day after day I cursed the engineers at Honda, Kawasaki, Yamaha & Suzuki for sourcing such horrible fasteners to hold such fine machinery together.

Fast forward a couple of dozen years and one day while wandering through a motorcycle show, I stop at a VJMC display and pick up a copy of their magazine.  When I finally slowed down enough to read through it a couple of weeks later I saw a really great article on the difference between Japanese Industrial Standard screws & Phillips screws as used here. It was a real eye opener, no wonder these screws were so difficult to remove. The angles of the sides and the shape of the center are just different enough to cause these two different styles not to be interchangeable.

I jumped onto the internet to research these JIS screwdrivers & found the two most commonly available brands to be Vessel & Hozan. I decided to order a 4 piece set of Hozan screwdrivers for about $25 USD.

Hozan JIS screwdrivers

Hozan JIS screwdrivers

These screwdrivers have hard plastic handles, this bugs some people but most of my screwdrivers have hard handles it  is what I’m used to. Plus they are a lot easier to clean than cushion grips. The distinctive shape keeps me from confusing them with my regular Phillips head screwdrivers which is important. They will probably bugger up a Phillips screw the same way a Phillips screwdriver buggers a JIS screw.

Even though I’ve only used them a few times I am really impressed with how much better they fit & grip the screw heads on a few dirtbikes that I am working on. And the best part of all is that the screws still look good when I am done. This is very important if you are doing restorations or building show bikes.

Save yourself a lot of trouble, learn from my mistakes and get yourself a set JIS screwdrivers. You’ll be glad you did!

The End of an Era.

Today, I rode the Minimum Ninja for the last time. A fine gentleman at work had fallen in love with it and asked me if I wanted to sell it, of course I told him no but that I would take XXXX dollars for it. Now it has a new home on a paved street in a nice 2 car garage. No more wading through the mud to get me home if it rains, or sharing a drafty old humid stable with a bunch of old decrepit motorcycles & bicycles. I did have to take one last ride to work and one last picture. So long old friend, enjoy your pampered new life!

The Minimum Ninja

The Minimum Ninja basking in the summer sun.

Now I really gotta get to work on that damn old 650 Honda out in the barn!

Peace Y’all

A Custom Battery Tray & Other Stuff

Just thought I’d do a quick update on some of the things that I have done with my CB650 project. I have been working on it a little at the time between my normal day job, a few bikes & atv’s for other people, & some painting (airbrush practice & landscape oil painting). Since I’ve decided to go with the “rat suburban assault scrambler” look some of the things about this project have gotten easier, but other design ideas require just a little more ingenuity. Rather than sawing off the back half of the frame & welding in a new seat loop as required to get the proper cafe racer look I am opting for a modified stock seat with a 74 CB750 tank, but I still wanted to eliminate the stock side panels. My plan now is to replace the side covers with 2 pieces cut from some rusty old expanded metal sheet I have lying around. To do that I still needed to modify the mounts for the electrics, and since I will be using a Shorai lithium battery that is much smaller than stock, a custom battery tray was in order also. Since this is a rat I decided to do this with nothing but materials I already had on hand. After sitting down & staring at it a while with my note book, pencil & ruler in my hand I came up with a basic design that tucks everything up high, bolts into the stock mounts, & allows me to reuse the inner fender to protect the electronics. Here’s how it goes…

First I removed the stock battery tray, along with the airbox & some other now useless items. Then I drilled out all of the spot welds holding the mounts, & various brackets to it.

butchering a Honda CB650 battery box

butchering a Honda CB650 battery box

In the spirit of my deep back country roots I decided to make do with the stuff I had on hand & not buy any new stuff to make this from, so this left over shelf divider that was destined for the scrap bin will get to live on as a motorcycle part. Here it is with all of the brackets & mounts salvaged from the original battery box.

custom built motorcycle parts

a custom battery & electronics tray in kit form đŸ˜‰

Then using my band saw I cut the tray to shape & bent it in a vise.

<custom motorcycle battery tray blank>

Then I bolted the stock mounts back into place using the original hardware & clamped the tray in between them. Since I do not have a tig box for my welder (YET) I simply use a 1/16″ 6013 rod to tack the pieces together without burning through the sheet metal too much.

tack welding battery box

tack welding battery box

After I got it tacked together with the stick welder I took it out and flipped it over & then brazed it securely together with the oxy-acetelyne torch. Then I laid out the various components such as the rectifier, turn signal flasher & etc & then brazed those mounts to the bottom of the plate.

custom rat motorcycle electronics mount

custom rat motorcycle electronics mount

I know it looks awful, but I might just leave it that way, this is a rat after all. I will have to sort & secure all the wiring though, because neatly sorted wiring is easier to trouble shoot in the future & is less likely to develop problems that need trouble shooting.

Here’s a view from the top side showing the Shorai battery lying on it’s side. I still need to make a plastic box to keep the battery from sliding around. Since my day job is doing design work using Solidworks, I may just draw one up & have it printed out using a 3d printer. If not I’ll form one out of ABS sheet.

<Honda CB650 battery box Shorai LFX>

fits just right!

I can’t say enough good things about these batteries, they’re light, powerful & durable. I’ve installed them in a couple of customer bikes, this one, and even have one in my lawn mower! Sure the cost a little more than the lead acid batteries, but are in my opinion a threefold improvement in all areas. I do sell these & would be happy to quote you one if you contact me.

Here a couple of other items that have been added, first an Ebay find of a 74 Honda CB750 fuel tank. This fit with modified rubbers & a custom rear mount. I’ll show you some more details later after I have it all worked out with the seat fitment. but I think it looks really good on here!

Honda CB650 with CB750 tank

Honda CB650 with CB750 tank

Another Ebay purchase is this 1970 Honda CL450 Scrambler. I bought the whole bike just to get the handlebars!

1970 Honda CL450

1970 Honda CL450

It’s pretty much seized up and there’s no paper work but the handlebars gave me exactly the look I wanted for my project. Good solid bars with just enough crust to blend in. No need to treat a new set of bars to a faux patina.

1970 CL450 handlebar on 80 CB650

1970 CL450 handlebar on 80 CB650

The CL450 will be parted, I plan to keep the frame, engine, carbs, gauges, charging system, fork & wheels. All of the sheetmetal and the exhaust are up for grabs to my fellow hobbyists who want them. The fuel tank is rusty bondoed junk but everything else is decent. Contact me using the form below.

I had a few other adventures including dealing with a stuck oil filter bolt that I’ll go over with you soon including how far I had to go to get it out.

Peace Y’all