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Author Topic: CM 185T - The Learning Curve  (Read 12998 times)

Offline sxecafe

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CM 185T - The Learning Curve
« Reply #20 on: Sep 30, 2012, 13:57:43 »
Took a trip to a guy I get parts from sometimes and ended up snagging a set up bars for the Curve... Swapped it out and cleaned up a little of the trash in the front.

Wife got home and super stoked started wrenching on the rear end and took the "Oh Shit" bars off.

Also, ordered up the new wire connectors last night for this and the 750 I have in the stall. Still no sign of life from the 550 but we're steady plugging away at it.


Here is what the triple mount looked like. I had to clean all that shit off.





Test fitting with the tank. Still have to drop the head light on it.



With the rear parts removed and a happy camper testing it out:




Sent from my iPad using Tapatalk HD

Offline sxecafe

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Re: CM 185T - The Learning Curve
« Reply #21 on: Oct 02, 2012, 14:02:35 »
Got a battery for this thing last night and put out a feel for a carburetor. Also have the electrical connections on their way from down south. I actually might be able to fire this thing in a few weeks!!! Would be very excited if that were the case.

Offline Maritime

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Re: CM 185T - The Learning Curve
« Reply #22 on: Oct 02, 2012, 14:18:34 »
Nice work so far.  Moving along well.
The GL Rebirth: http://www.dotheton.com/forum/index.php?topic=68337.0
CX500 Low budget Bobber : http://www.dotheton.com/forum/index.php?topic=43617.0
"Beer makes you feel the way you ought to feel without beer" -Henry Lawson
"Beer is proof that God loves us and wants us to be happy." - Thomas Jefferson

Offline sxecafe

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CM 185T - The Learning Curve
« Reply #23 on: Oct 04, 2012, 13:45:28 »
It the connectors last night I love this place Vintage Connections. If you haven't tried it out, you really should get on it.



Also bought a carb and a right side control yesterday. Looking at a petcock right now. Trying to get all the stuff I need to fire it up before the tear down.

Offline Maritime

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Re: CM 185T - The Learning Curve
« Reply #24 on: Oct 04, 2012, 13:59:13 »
Good plan. Once you know it will run, then make it pretty.  Have you checked compression? This thing probably has a CDI, so there is no ignition timing to set and cam timing should be fine if no one has messed with the internals. So it should fire as long as you have compression and spark.  You can test fire with just fuel in a bottle and some fuel line if the petcock is hard to score.  I think this is the Nighthawk 250 motors first iteration so you may be able to source parts from them.
The GL Rebirth: http://www.dotheton.com/forum/index.php?topic=68337.0
CX500 Low budget Bobber : http://www.dotheton.com/forum/index.php?topic=43617.0
"Beer makes you feel the way you ought to feel without beer" -Henry Lawson
"Beer is proof that God loves us and wants us to be happy." - Thomas Jefferson

Offline sxecafe

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Re: CM 185T - The Learning Curve
« Reply #25 on: Oct 04, 2012, 14:10:47 »
Surprisingly, parts aren't too difficult to find for this thing. They made a CM200 and 250 (which, as you said would become the Nighthawks) and most of those parts are interchangeable. That being said, I put a '72 CB175 tank on it so that's the petcock I'm trying to score. Just cant decide on whether or not I want to test out one of the Chinese made ones for $20 (I know you get what you pay for) or get a busted one and a rebuild kit for $60.

It does have decent compression, or at least it sounds like it (haven't tested it yet). I dont think anyone has opened this thing up EVER! I mean... unless you're an idiot like me, who would want one of these bikes, let a lone want to wrench on it! Also, I don't think it's CDI... there is a coil, albeit small. Now that I think of it though... I haven't located point on it.


Offline Maritime

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Re: CM 185T - The Learning Curve
« Reply #27 on: Oct 04, 2012, 14:21:13 »
What year again?  79+ have CDI's, little black box located on the frame connected to the coils. The signal comes from the stator and little brass plates.  As the stator turns and the plates pass a pickup it goes to the cdi which in turn fires the coils.  Aftermarket cdi's are cheap and supposed to be better than factory I had a couple but have given them all away to DTT members.  With the new connectors though ou should have no issues if the cdi is good.  Just make sure it is grounded properly and the ground spots are clean.
The GL Rebirth: http://www.dotheton.com/forum/index.php?topic=68337.0
CX500 Low budget Bobber : http://www.dotheton.com/forum/index.php?topic=43617.0
"Beer makes you feel the way you ought to feel without beer" -Henry Lawson
"Beer is proof that God loves us and wants us to be happy." - Thomas Jefferson

Offline sxecafe

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Re: CM 185T - The Learning Curve
« Reply #28 on: Oct 04, 2012, 14:22:48 »
It's a '78. I'll take a look in to it.

Offline Maritime

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Re: CM 185T - The Learning Curve
« Reply #29 on: Oct 04, 2012, 14:23:18 »
I'm wrong the 79 still has points under the stator cover.
The GL Rebirth: http://www.dotheton.com/forum/index.php?topic=68337.0
CX500 Low budget Bobber : http://www.dotheton.com/forum/index.php?topic=43617.0
"Beer makes you feel the way you ought to feel without beer" -Henry Lawson
"Beer is proof that God loves us and wants us to be happy." - Thomas Jefferson