CB400T Carb repair, etc

ancientdad said:
Time for another test ride, weather permitting.
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Well...........
I just got back from a good ride, and..........
I went through about half a tank, so...........
All is well, and this 43 year old CB400T is running far better than I ever expected it to!
I am a happy camper!
Bob
 
I know that LDR is not a fan of using an inline filter, but after rebuilding these carbs six, times I wanted to do as much as possible to try to keep particulate and sediment out of the carbs.
They are fussy carbs for sure.
This little filter has a fairly fine micron capability, and it seemed like inexpensive insurance.
The first filter actually did catch enough guck to clog enough to create fuel starvation, so it must be doing something.
I'll attach a pic of the fuel line and the condition of my tank now after three vinegar cleanings and 2000K of riding.
Thanks for all of you help and guidance guys!
BobLine.jpgTank.jpg
 
Went for a nice ride yesterday, all is well.
This is my favorite time of year to ride.
The fall colours are just starting, and the smell of fall is starting emerge.
Crops are ready for harvest.............
The next few weeks will be great!
I've missed this over the past few years without a bike.
Bob
 
Bobs twin said:
Went for a nice ride yesterday, all is well.
This is my favorite time of year to ride.
The fall colours are just starting, and the smell of fall is starting emerge.
Crops are ready for harvest.............
The next few weeks will be great!
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The difference that 1500+ miles further north makes. It's still 90° every day where I am, and the glorious moments you describe are still 6 to 8 weeks away for us.
 
ancientdad said:
The difference that 1500+ miles further north makes. It's still 90° every day where I am, and the glorious moments you describe are still 6 to 8 weeks away for us.
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this is one thing that I really enjoy about southern Ontario, the change of the seasons.
but..........
somehow.................
90deg and sunny doesn't sound that bad either!
:)
bob
 
wentwest said:
But you don't have to shovel away humidity.
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With the weight of that humidity blanket, you wouldn't be doing much shoveling! I do as little as possible in the steamy summer months here, mow the grass when the sun is going down and do any trimming needed in the mornings early. All other non-essential yard stuff gets done during our cooler months.

And believe me, I'm glad I don't have snow to shovel. Not sure how people do it every year up north, much less drive in it.
 
ancientdad said:
With the weight of that humidity blanket, you wouldn't be doing much shoveling! I do as little as possible in the steamy summer months here, mow the grass when the sun is going down and do any trimming needed in the mornings early. All other non-essential yard stuff gets done during our cooler months.

And believe me, I'm glad I don't have snow to shovel. Not sure how people do it every year up north, much less drive in it.
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Well, there are a few odd people like myownself that actually enjoy the snow.
now............
I will admit, it was a lot more fun when I was younger, but.........
a snowy day........
gently falling outside.
a big bowl of popcorn.........
and a football game............
need I say more?
heck, my son-in-law offered to take me to the game between the 9ers and the Bills Dec 1st..........
IN BUFFALO!
bob
 
just got back from a ride...........
and yup...........
it rained!
ya know, just as an observation............
rain feels cooler when its in the 50's, and not mid summer.
but..........
on the upside.......
the bike runs fine in the rain!
bob
 
Bobs twin said:
just got back from a ride...........
and yup...........
it rained!
ya know, just as an observation............
rain feels cooler when its in the 50's, and not mid summer.
but..........
on the upside.......
the bike runs fine in the rain!
bob
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Ah, riding in the rain. If you suddenly pickup a misfire or drop a cylinder it's because the right plug has gotten watered and spark voltage is going straight to ground. Or the front wheel is throwing up enough water to soak the coil.
Either issue can be cured easily by spraying those parts with WD40. Only do that with engine off.................unless you like fire.:ROFLMAO: Don't ask:ROFLMAO:
 
LongDistanceRider said:
Ah, riding in the rain. If you suddenly pickup a misfire or drop a cylinder it's because the right plug has gotten watered and spark voltage is going straight to ground. Or the front wheel is throwing up enough water to soak the coil.
Either issue can be cured easily by spraying those parts with WD40. Only do that with engine off.................unless you like fire.:ROFLMAO: Don't ask:ROFLMAO:
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Thanks Jim, your input is always appreciated!
I had a Norton like this.
bob
 
Bobs twin said:
I'm laughin, but yup, that is around the corner.
gonna enjoy the nice weather and the Fall while I can!
have a great day down there in that terrible hot weather-land!
bob
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Thanks, we're still waiting for that first cool day... hopefully right around the corner, the summers are plenty long enough.
 
ancientdad said:
Thanks, we're still waiting for that first cool day... hopefully right around the corner, the summers are plenty long enough.
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Our summer was a bit cooler here with more rain.
the local Honda dealer has an open house tomorrow with a parts table.
might need to check that out!
enjoy that sunshine!
bob
 
ancientdad said:
With the weight of that humidity blanket, you wouldn't be doing much shoveling! I do as little as possible in the steamy summer months here, mow the grass when the sun is going down and do any trimming needed in the mornings early. All other non-essential yard stuff gets done during our cooler months.

And believe me, I'm glad I don't have snow to shovel. Not sure how people do it every year up north, much less drive in it.
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Its called a snowblower around here and down south in the GTA with a the heat off the Toronto area, they get very little snow, or a few small storms in a winter these days. Up where I am a snowblower is a must have unless your willing to shovel on a regular basis.

Four wheel drive is my friend with the Suby, so no problem if your used to the winter and road conditions.
 
It's been just one year since I picked up the CB400T, in rather rough shape.
I went for a ride yesterday thinking about this, it was just over 42 degrees, so I was thinking fast.
Without the help of many on this site that ride would not have been possible!
So, I thank you all for your kindness, guidance and patience!
Have a great day, all of you!
bob023.jpg
 
Also, when I got home I noticed the burn through holes on the lower pant legs of my jeans.
yup, they were from the bike battery I dropped, cracked open, and lightly sprayed my pants with battery acid.
seems fitting to wear them while riding don't you think!
yeah, I've had those moments!
hey, on the positive side, people pay extra for jeans like this now!
bob
 
OK, I don't know if this is what you should do, but......
I've developed a bit of a squeal in my speedo, so.....
I took it out, flipped it over, and put 1 or 2 drops of #10 in the cable input, then let it sit for 10 or 15 minutes.
Put it back together, and went for a ride.
now, riding in low temps in to a light fog that becomes a fine mist, which completely covers your visor, making visibility near impossible.....
well, that’s a story for another day..............
the speedo no longer makes any noise, so I'll have to keep an eye on it.
I may be looking for a replacement.
bob
 
Bobs twin said:
OK, I don't know if this is what you should do, but......
I've developed a bit of a squeal in my speedo, so.....
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First off, you should not be riding around in your speedo,
not sure why you would get a squeal
Bobs twin said:
I took it out, flipped it over, and put 1 or 2 drops of #10 in the cable input, then let it sit for 10 or 15 minutes.
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You have to understand that these bikes are fussy mechanical creatures.
Much like a spouse, except, well these are mechanical so you can fix them.
For my spouse I use a bottle of #13 ABV.
Bobs twin said:
now, riding in low temps in to a light fog that becomes a fine mist, which completely covers your visor, making visibility near impossible.....
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The story of my life.
Bobs twin said:
the speedo no longer makes any noise, so I'll have to keep an eye on it.
I may be looking for a replacement.
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If you are talking spouses here I would not recommend it.
For the speedo, make sure your cable is lubed.

A very good day for a ride!

karl
 
kbongos said:
First off, you should not be riding around in your speedo,
not sure why you would get a squeal

You have to understand that these bikes are fussy mechanical creatures.
Much like a spouse, except, well these are mechanical so you can fix them.
For my spouse I use a bottle of #13 ABV.

The story of my life.

If you are talking spouses here I would not recommend it.
For the speedo, make sure your cable is lubed.

A very good day for a ride!

karl
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I'm laughin, but yup!
good points all.
I lubbed the cables a month back, and did them again yesterday.
I isolated the noise by putting the bike on the centre stand, lifting the front wheel and spinning it.
the noise came from the spedo itself, so in went the poil.
time will tell.
still love the bike though!
bob
 
see, now would be a great time for a ride, but.........
we are off to the warplane museum to see the Lancaster.
My wifes father was a rear gunner in one, and he survived.
it will be memory lane today, as we are taking two of my wifes sisters along as well.
I'm the uber driver.................
bob
 
Yes, I need to take my joy ride, while we have these warm days. I wimped out and took it to work only once this week, chilly in the morning. I did have some problems with tachometer some time ago and it was a mistake to take it apart - the metal crimp clamp is a hassle, nothing easily serviceable with apart. I think what you did with a few drops of oil is the way to go. You can test spin it with a nail bent to right form, might help working the oil in too.

My Dad was a merchant marine(2nd mate) during WWII and he survived some trips on or with some liberty ships.
 
kbongos said:
Yes, I need to take my joy ride, while we have these warm days. I wimped out and took it to work only once this week, chilly in the morning. I did have some problems with tachometer some time ago and it was a mistake to take it apart - the metal crimp clamp is a hassle, nothing easily serviceable with apart. I think what you did with a few drops of oil is the way to go. You can test spin it with a nail bent to right form, might help working the oil in too.

My Dad was a merchant marine(2nd mate) during WWII and he survived some trips on or with some liberty ships.
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Those men were very brave, very brave! (You come from good stock!)
My father in law made up a stick that he used to pry himself out of the rear turret with, he made it soon after he arrived in Great Britain and found out where he was going to be.
then he had to climb through the fuselage over the wing spar and get out of the plane, while it was plummeting to the ground.
I'm happy that he made it; I've been married to his daughter for over 51 years now.
bob
 
Well guys, I did it again.
While out on a ride the other day I noticed that my tach was "hunting", back and forth around the number.
So, because I had good results with putting a couple of drops of oil in the speedo cable port, I thought that I would try this with the tach.
I took it off, flipped it over, put a couple of drops of #10 in the port, let it sit for 10 minutes, and then reinstalled it.
I went for a ride and it is working perfect, I now have one spot for the RPM instead of a range.
Old stuff, including me, can use a little oil now and then!
bob
tach.jpg
 
I remember we had days where I was sure it smelled like snow. Like the day in your photo, or maybe a little grayer.
 
well, we did get a bit of snow.
we have a light cold rain now, so.........
it might be time to top up the tank, hook up the trickle charger, set the bike in the corner and cover it for next season.
sad, but true!
It's hard to put in to words just how much fun this small Honda was, compared to the big lug I sold.
I also am more appreciative of all of the help that I received from many of you in getting it running again, and keeping it running!
I thank you all!
bob
 
Bobs twin said:
I also am more appreciative of all of the help that I received from many of you in getting it running again, and keeping it running!
I thank you all!
bob
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We're glad it's sorted and running well and since absence makes the heart grow fonder, you'll be itching to ride again next spring!
 
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