Topic: BabyHawk.. the CB160 build.

[HondanutRider]

Does seem odd huh? Yeah, I hate that crossover fuel line. Makes a mess every time you remove the tank.

On the Dream I ran it up over the frame. No room to do this on the CB160.

tt

Yes, the crossover fuel line is highly annoying.  The CL175 and CB175 are that way too, as was my Yamaha RD350.

I like how BMW did on the airheads.   They use two petcocks.    You just switch them both off, disconnect the fuel lines -- no mess.

On the CB160 that I previously owned, the PO (who had restored and custom-ed most of it) had soldered-up the left side exit from the tank.  This solved the problem of removing the tank without draining it first, but left that side of the tank supply not accessible.  I opened it up to give full capacity.

BTW the CB77 has the same right-side exit to the petcock on the other side, with a fuel line looped under the frame.

[jas67]

On the CB160 that I previously owned, the PO (who had restored and custom-ed most of it) had soldered-up the left side exit from the tank.  This solved the problem of removing the tank without draining it first, but left that side of the tank supply not accessible.  I opened it up to give full capacity.

BTW the CB77 has the same right-side exit to the petcock on the other side, with a fuel line looped under the frame.

You could've left it that way, and just used "tilt reserve" when you run out of fuel.
Come to think of it, my '75 CB360 did NOT have a crossover hose.   Because, now, I remember running out of fuel once, even though I could still hear fuel sloshing around in the tank.   Then, I realized why.    I gently laid it down on it's left side in some grass, and then stood it back up.   That gave me enough fuel to make it a few miles to a gas station.

[toytuff]

It's nice to have the other half in a "understanding" way. Put a 10 hour day out in the Shop. Once you get going why stop? 

Starting on the front end..



Why not disassemble the front wheel and lace the new rim. 





Oh, I did a lot more. Check out the Purple Haze thread.  Retirement is tough!

tt

[jas67]

It's nice to have the other half in a "understanding" way. Put a 10 hour day out in the Shop. Once you get going why stop? 

10 hours in the shop!   In a row!   
So Jealous.

Damn, I wish I could get that.    My other half was working all weekend (Nurse = 12 hour shifts, lots of weekends).   I spent the better part of my weekend doing domestic duties and helping our 8 year old with her school project.
I did manage to sand blast and paint the toolbox/fender bracket for an ST90 I'm getting read to sell, and clean/lube the chain on my VFR750.   That was it.       

Anyway -- the CB160 is looking GREAT!   

[toytuff]

Thanks jaz. You'll love this.

Got a call from Mike. Other than another coat of clear the side covers and fenders are done.

These are just cell phone pictures and poor lighting but you get the idea.

tt

[Greggo]

 


Where do you buy that cloud silver paint, tt?

[toytuff]

Where do you buy that cloud silver paint, tt?

Marble Motors. Talk with Randy, nice guy.

tt

http://marblesmotors.com/

[jas67]

TT -- lookin' good!   

[toytuff]

Here is something that has crossed my mind.

The new rims are wider than the stock rims. Tire size as follows.

Front: 2.50 - 18
Rear 2.75 - 18

Tubes that I have are:

Front: 2.25/2.50 - 18
Rear 2.75/3.00 - 18

Wondering if I should run bigger tubes given the width is 7mm greater on new rim.

Thoughts?

tt

[MoMo]

I would use the tubes, that is assuming  they are new...Larry

[toytuff]

I would use the tubes, that is assuming  they are new...Larry

Well, yes but that doesn't answer the question Larry. 

I could go 2.75 front and 3.00 rear. I think that figures about a quarter inch wider. 7mm also is around a 1/4 inch which the new rim width measures.

tt

[MoMo]

I would use the tubes, that is assuming  they are new...Larry

Well, yes but that doesn't answer the question Larry. 



John, the tubes are made to cover the size tires you have-if mine I would definitely use them. ..Larry

I could go 2.75 front and 3.00 rear. I think that figures about a quarter inch wider. 7mm also is around a 1/4 inch which the new rim width measures.

tt

[HondanutRider]

Thanks jaz. You'll love this.

Got a call from Mike. Other than another coat of clear the side covers and fenders are done.

These are just cell phone pictures and poor lighting but you get the idea.

tt

Paint looks nice.  Here's a tip for those side covers that I did on mine when I had it:  On each of those tabs on top, put a small o-ring to cushion the side when mounted in the frame.  Otherwise, vibration might cause some scuffing.

[Stev-o]

+1 paint looks great and those tubes are correct. 

[toytuff]

Thanks guys! Good tip right there.

I'm not concerned about the tubes. I'm talking tires.

Rim is 7mm wider than stock thus the stock tire size of 2.50 front/2.75 rear.

Would you use stock size on wider rim? (7mm)

Would you go up to 2.75 front/3.00 rear?

Would you just use bigger tubes?

Stock tire size work?

tt

[MoMo]

TT, I forgot it,  had purchased the tires already?..Larry

[toytuff]

TT, I forgot it,  had purchased the tires already?..Larry

Yes, have new tires but no worries ordering bigger. Only $72.00 with tubes. I can use these on the other CB160. 

tt

[HondaMan]

Thanks guys! Good tip right there.

I'm not concerned about the tubes. I'm talking tires.

Rim is 7mm wider than stock thus the stock tire size of 2.50 front/2.75 rear.

Would you use stock size on wider rim? (7mm)

Would you go up to 2.75 front/3.00 rear?

Would you just use bigger tubes?

Stock tire size work?

tt

Yes, those 7mm wider rims nudge the sidewall support ratio downward. You'll need wider tires, or the tread will tend to feel like you're skating on a wet tire in the back, at the least. Going up the +.25 size will work fine, so long as it clears the fender stays up front? The wider body is not quite .25" more, but is like .20" more width, if their aspect ratio is correct.

This aspect ratio has gotten lost in the modern "inch" tires, I'm afraid, for the bigger bikes. The 4.00 rear tire I got for my 750 two years ago, for instance, is nothing more than a 110-90 with a different tread depth, so the profile is real low. It will fit where a 4.00 is supposed to go, but hasn't the rubber-on-the-road footprint to match the 4.00: it is definitely narrower. But, with the 750 this just means you can break it free with a hard clutch dump...

[toytuff]

Hondaman,

Yes, fender stays may become an issue. Here is my math.

New rim is 1.85 inches. (we know that)

Old rim is 1.65 inches.

Difference of .20 inches.

.20 inches equals 5mm.

If you divide the 5mm 2.5 mm per side should work.

At least this is what I come up with. Make any sense or am I forgetting something?

tt

[toytuff]

Oh boy, looks tight already! 





Almost looks to big for the bike huh?





Well, going to roll with it. (pun )

tt

[HondaMan]

I wonder if trigonometric tires might be out there to fit the rim? They will have a little narrower cross-section than inch or ISO metric profiles.

[toytuff]

Have a couple of questions.

Working on the front forks. The parts diagram does not show lower fork bolts and copper washer. Mine has them. 

Now, is there a trick in getting the chrome covers off the lower tubes? Man, they are on there tight!



Also, has anyone found paint that closely matches Dark Metallic Silver like Honda used? I have left over Cloud Silver and might go with that. Waiting on the fenders to compare.

The condition of the forks and triple tree are great. No heavy rust.



tt

[toytuff]

One (1) week delay waiting on another tire. Going with a 3.00/18 rear up from a 2.75/18.

Rear wheel is done, front at the Shop.





Brakes ready to go.



Not sure if I'm in the mood to tackle the chrome covers today. If I can get the dust seal out without damage I would be very happy. They have four (4) rubber tabs that hold them in place. Stiff rubber, NLA from Honda.



tt

[RAFster122s]

Claus Studios has some repro parts, very good quality...

[toytuff]

Claus Studios has some repro parts, very good quality...

Ordered several items from them. Thanks.

tt