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Author Topic: "Little Horse," and "Little Dragon" the war of the 500's  (Read 82848 times)

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Offline Flying J

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Re: Yet another cafe bike build
« Reply #175 on: March 10, 2010, 08:33:25 am »
what is the extra wire around your brake line?

Offline Little_Horse

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Re: Yet another cafe bike build
« Reply #176 on: March 10, 2010, 09:00:33 am »
The extra wire is for the speedometer pickup
"Little Horse Cycles" facebook page: http://www.facebook.com/pages/Little-Horse-Cycles/185809474769493

LHC is my start up cafe racer shop specializing in custom parts, bikes, restoration and recreation

The 500 builds http://forums.sohc4.net/index.php?topic=64250.0

Offline Little_Horse

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Re: Yet another cafe bike build
« Reply #177 on: March 11, 2010, 07:31:45 am »
I may make a few of these if people are interested. They work with fork legs below the tire height.








"Little Horse Cycles" facebook page: http://www.facebook.com/pages/Little-Horse-Cycles/185809474769493

LHC is my start up cafe racer shop specializing in custom parts, bikes, restoration and recreation

The 500 builds http://forums.sohc4.net/index.php?topic=64250.0

Offline wannabridin

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Re: Yet another cafe bike build
« Reply #178 on: March 11, 2010, 07:51:35 am »
you make one for a 76 gl1000 front end and i'll buy one off you asap!!   ;D  looks badass!  aluminum?
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Offline Little_Horse

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Re: Yet another cafe bike build
« Reply #179 on: March 11, 2010, 09:03:52 am »
yeah aluminum. In order to make one for the gl I would need very precise measurements for fork leg diameter at the top, and for the distance center to center between the legs. Also would need a measurement of the relation between the top of the tire and the fork leg (not as much precision needed). I would need this info before making it.
"Little Horse Cycles" facebook page: http://www.facebook.com/pages/Little-Horse-Cycles/185809474769493

LHC is my start up cafe racer shop specializing in custom parts, bikes, restoration and recreation

The 500 builds http://forums.sohc4.net/index.php?topic=64250.0

Offline Hoosier Daddy

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Re: Yet another cafe bike build
« Reply #180 on: March 11, 2010, 09:22:05 am »
That is one kick-arse forkbrace!
'81 GL1100 "Bomber" cafe build - Yea, it's a GoldWing.... Wha?!
'74 CB350f "Lil Sister" - Waiting her turn to dance.

Offline wannabridin

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Re: Yet another cafe bike build
« Reply #181 on: March 11, 2010, 09:23:48 am »
gotcha.  the only other one i've found worth anything is the unit from randakks, seen below...

how'd you get the nice smooth contour above the tire?? 
1976 CB750K, currently under construction:
http://forums.sohc4.net/index.php?topic=64468.0

-And if you don't do it this year, you'll be one year older when you do...

Offline scroggins5000

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Re: Yet another cafe bike build
« Reply #182 on: March 11, 2010, 09:39:49 am »
I may make a few of these if people are interested. They work with fork legs below the tire height.

These are fork braces are awesome. I'd like one, but I think I want to keep my front fender.

Offline Little_Horse

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Re: Yet another cafe bike build
« Reply #183 on: March 11, 2010, 10:45:28 am »
gotcha.  the only other one i've found worth anything is the unit from randakks, seen below...

how'd you get the nice smooth contour above the tire?? 

It took alot of careful bending, I did it by hand one little bend at a time until it was the right shape. How much does the fork brace pictured cost?

I don't have the front fender anymore so I can't build one that will work for that.
"Little Horse Cycles" facebook page: http://www.facebook.com/pages/Little-Horse-Cycles/185809474769493

LHC is my start up cafe racer shop specializing in custom parts, bikes, restoration and recreation

The 500 builds http://forums.sohc4.net/index.php?topic=64250.0

Offline wannabridin

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Re: Yet another cafe bike build
« Reply #184 on: March 11, 2010, 10:58:26 am »
that's a randakks unit, about $200 or so...

http://www.randakks.com/Suspension%20Components.htm#1
1976 CB750K, currently under construction:
http://forums.sohc4.net/index.php?topic=64468.0

-And if you don't do it this year, you'll be one year older when you do...

Offline Little_Horse

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Re: Yet another cafe bike build
« Reply #185 on: March 11, 2010, 03:49:29 pm »
its a nice unit for sure, but I am diggin my roughed out look I thought about polishing it but it looks better rough.
"Little Horse Cycles" facebook page: http://www.facebook.com/pages/Little-Horse-Cycles/185809474769493

LHC is my start up cafe racer shop specializing in custom parts, bikes, restoration and recreation

The 500 builds http://forums.sohc4.net/index.php?topic=64250.0

Offline scroggins5000

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Re: Yet another cafe bike build
« Reply #186 on: March 11, 2010, 03:58:35 pm »
its a nice unit for sure, but I am diggin my roughed out look I thought about polishing it but it looks better rough.

Yeah keep it as is. It matches the forks really well.

Offline Little_Horse

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Re: Yet another cafe bike build
« Reply #187 on: March 16, 2010, 08:59:56 am »
alrighty so I am looking to bounce a few ideas off of the perverbial brain. I have a weird vibration in my chassis still. It feels very much as if a tire was oval an up and down type movement that seems to manifest the most at speeds above 50 mph.

So my thoughts on the matter is that it may be steering bearings. I have serviced them when I took everything apart and they seemed fine. I tried tightening them and it made little to no difference. There seems to me to be a possibility of play in the front but strangly in corners it feels really solid which also makes me think it isn't steering bearings. Yesterday I used the string method to make sure the rear wheel was aligned, and found it was off a bit so I fixed that then rode the bike around the block. First impression was that it was not as bad, but it was still there. I haven't checked the rear wheel yet to make sure it is round and not oval. I guess that is next. Any ideas or clever ways for me to start checking possibilities off of my list?
"Little Horse Cycles" facebook page: http://www.facebook.com/pages/Little-Horse-Cycles/185809474769493

LHC is my start up cafe racer shop specializing in custom parts, bikes, restoration and recreation

The 500 builds http://forums.sohc4.net/index.php?topic=64250.0

Offline Hoosier Daddy

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Re: Yet another cafe bike build
« Reply #188 on: March 16, 2010, 09:22:56 am »
Beacuase of this statement...

Quote
as if a tire was oval an up and down type movement that seems to manifest the most at speeds above 50 mph.

I am going to say tire ballance. That is usually the speeds where it rears it's ugly head. Quick and easy would be to add dyna-beads, just pour in the valve stem, and see if it goes away before condeming any other componant
'81 GL1100 "Bomber" cafe build - Yea, it's a GoldWing.... Wha?!
'74 CB350f "Lil Sister" - Waiting her turn to dance.

Offline Little_Horse

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Re: Yet another cafe bike build
« Reply #189 on: March 16, 2010, 10:13:26 am »
Thats what I thought at first too, but I have since checked the balance of the wheels and they are balanced. The oval wheel description was to try and give someone the idea of the frequency of the pulsation...
"Little Horse Cycles" facebook page: http://www.facebook.com/pages/Little-Horse-Cycles/185809474769493

LHC is my start up cafe racer shop specializing in custom parts, bikes, restoration and recreation

The 500 builds http://forums.sohc4.net/index.php?topic=64250.0

Offline ev0lve

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Re: Yet another cafe bike build
« Reply #190 on: March 16, 2010, 10:23:44 am »
Can an up/down hop be anything but the wheels?

I get some lopeing when I'm hard in a corner I'm pretty sure is swingarm bushings at this point but steady as a rock in a straight-line. Pretty much anything else - bushings, bearings etc would give you a wobble I thought.

Ready to learn though  ;)

Offline Little_Horse

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Re: Yet another cafe bike build
« Reply #191 on: March 16, 2010, 10:47:29 am »
thats what baffles me about the problem, it is rock steady in corners. No wobbles or shakes or slips nothing... the original problem may exist but I don't notice it when cornering.
"Little Horse Cycles" facebook page: http://www.facebook.com/pages/Little-Horse-Cycles/185809474769493

LHC is my start up cafe racer shop specializing in custom parts, bikes, restoration and recreation

The 500 builds http://forums.sohc4.net/index.php?topic=64250.0

Offline Grnrngr

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Re: Yet another cafe bike build
« Reply #192 on: March 16, 2010, 11:20:24 am »
About 400 miles after changing my chain and primary sprocket, had some weirdness coming from the rear end, felt like the chain was binding. Pulled the wheel and the last 4 bearings fell out....never really had any other indication the wheel bearings were turning into dust, the bike was always smooth and fast....
'72 CB750-K2 "PopCycle"
'73 CB750-K2 "Barney"
'77 CB750A   
'83 Virago 500 (red)
'83 Virago 500 (black)

"and so on and so on and scoobydoobydooby..oooooooshasha"  Sly Stone

Offline Industrial Cafe

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Re: Yet another cafe bike build
« Reply #193 on: March 16, 2010, 11:35:19 am »
have you put your bike on the center stand and spun the back wheel?
watch the chain and see if it tightens and slacks.  mine did that and had a weird "oval feeling" vibration

I can tell you how to fix it if it is.
everything I say is pure speculation and
I have no idea what I'm talking about  ._.


                                    Marla              .:71CB750:.CAFE

Offline paulages

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Re: Yet another cafe bike build
« Reply #194 on: March 16, 2010, 01:05:18 pm »
Have you checked your wheels for runout?
paul
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Offline Little_Horse

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Re: Yet another cafe bike build
« Reply #195 on: March 16, 2010, 01:08:16 pm »
have you put your bike on the center stand and spun the back wheel?
watch the chain and see if it tightens and slacks.  mine did that and had a weird "oval feeling" vibration

I can tell you how to fix it if it is.

Well I am interested in your chain fix as this has happened to me before on another bike, but thats not it.

I checked a few more things and found the rear tire was oval with an overall deflection of about 3/16 to a quarter in  :o. Funny the rim was not oval though. I messed with the spokes for a little bit and that made no change. Then I beat the tire with a rubber mallet for a few rotations and directly on the high spot, bam right away it was within less then an 1/8 some more hammering and then only a few high spots. Back to the spokes and an hour and a half later I have worked the tire into less then a 1/16 in deflection in diameter overall. I haven't tested it yet.
"Little Horse Cycles" facebook page: http://www.facebook.com/pages/Little-Horse-Cycles/185809474769493

LHC is my start up cafe racer shop specializing in custom parts, bikes, restoration and recreation

The 500 builds http://forums.sohc4.net/index.php?topic=64250.0

Offline Grnrngr

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Re: Yet another cafe bike build
« Reply #196 on: March 16, 2010, 01:39:46 pm »
I love it when folks break out the HAMMER...... ;D

Been a long time since I changed a motorcycle tire, but when I change a tire on my 10 speed, I always inflate just enough to hold the shape, then work the tire all the way around to make sure the bead sets right...seems to me we did use to rubber mallet the dirt bike tires before full inflation for the same reason. I've had the 10 spd tube push the tire off the bead, then pop when it pinches itself between the tire and rim..you do get a little up and down motion since there is a high spot where it's not seated properly.
'72 CB750-K2 "PopCycle"
'73 CB750-K2 "Barney"
'77 CB750A   
'83 Virago 500 (red)
'83 Virago 500 (black)

"and so on and so on and scoobydoobydooby..oooooooshasha"  Sly Stone

Offline Industrial Cafe

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Re: Yet another cafe bike build
« Reply #197 on: March 16, 2010, 03:58:15 pm »
On my bike- the nuts that hold the sprocket on weren't torqued down enough, and the sprocket was able to shift on the 4 bolts about a 32nd of an inch.
   That was just enough to throw the chain from perfect slack to crunchingly tight with every revolution.

fixed my friends bike like this too-

Loosen the sprocket just enough so it can slip back into place when you squeeze the chain together.
  
Spin the wheel and squeeze the chain when it gets tight until it doesn't get tight anymore.

Tighten the 4 lug nuts on the sprocket to the proper spec, adjust the chain tensioners, and VIOLA!


That isn't the problem on all bikes, but that fix worked for both of us.
everything I say is pure speculation and
I have no idea what I'm talking about  ._.


                                    Marla              .:71CB750:.CAFE

Offline Little_Horse

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Re: Yet another cafe bike build
« Reply #198 on: March 16, 2010, 04:14:27 pm »
thanks every one for the help, I will keep you posted once I test it out again.

Cheers
"Little Horse Cycles" facebook page: http://www.facebook.com/pages/Little-Horse-Cycles/185809474769493

LHC is my start up cafe racer shop specializing in custom parts, bikes, restoration and recreation

The 500 builds http://forums.sohc4.net/index.php?topic=64250.0

Offline Little_Horse

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Re: Yet another cafe bike build
« Reply #199 on: March 18, 2010, 07:23:07 am »
well it seems to be fixed! No more vibes so I can move on to other tuning!
"Little Horse Cycles" facebook page: http://www.facebook.com/pages/Little-Horse-Cycles/185809474769493

LHC is my start up cafe racer shop specializing in custom parts, bikes, restoration and recreation

The 500 builds http://forums.sohc4.net/index.php?topic=64250.0

 

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