Author Topic: project beginning  (Read 7532 times)

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Offline Zig

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Re: project beginning
« Reply #25 on: February 20, 2010, 11:16:49 AM »
Not sure I understnad....you said it had a 900 kit, then you mentioned stock...did you get another cylinder off eBay or something?

2 motors idea....good move.

~Joe


have 2 engines on bench, one was bored to 900cc the other is stock, am using stock engine for this build but may fit cam (andrews) from big bore to stock engine and do some other internal mods.

Offline Zig

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Re: project beginning
« Reply #26 on: March 21, 2010, 03:51:22 PM »
 anybody that cleans carbon from piston tops with a wire wheel should be keel-hauled and then shot. 2 days decarbon and polish pistons, jugs back from honing.
now gotta decide what to do with head/cam and order a set of rings and gaskets.
 what are opinions on cyclex ignition sys??
« Last Edit: March 21, 2010, 04:14:41 PM by Zig »

Offline HedNut

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Re: project beginning
« Reply #27 on: March 22, 2010, 01:22:21 PM »
Nice Nice!  How'd you get that block soooo clean!?  ...I want to do the same! ahah

Offline Zig

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Re: project beginning
« Reply #28 on: March 23, 2010, 10:11:50 AM »
hay hednut
2 days in a bucket of solvent, pressure wash and bead blast, will clean again before paint.

Offline HedNut

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Re: project beginning
« Reply #29 on: March 23, 2010, 10:14:51 AM »
Sweet.... I gotta try something like that.... don't have a blaster...but maybe I can improvise something cheapo!

Cheers!
Keep the goods coming!

Offline Zig

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Re: project beginning
« Reply #30 on: April 12, 2010, 03:57:34 PM »
Found a set of rings for 750 k5 at a local Honda dealer, 52$ C, Cheap! Cam chain was high at 62$. The dude told me to give him my list ( is a long list) of req'd parts and he would check price and availability of all and get back to me. Would be great if i could use oem parts where applicable.............will see.

Offline Rosinante

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Re: project beginning
« Reply #31 on: April 12, 2010, 04:30:10 PM »
It handles great! I have since changed the front of the bike to accommodate a disc brake, I have 550 forks up front with and inch cut on the springs and lowered in the trees.

Oh, so you want to be able to stop the bike?
1978 CB750K

Offline Zig

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Re: project beginning
« Reply #32 on: April 14, 2010, 05:21:10 AM »
It handles great! I have since changed the front of the bike to accommodate a disc brake, I have 550 forks up front with and inch cut on the springs and lowered in the trees.

Oh, so you want to be able to stop the bike?

but she sure looked sweet without the brake............

traveler

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Re: project beginning
« Reply #33 on: April 14, 2010, 06:33:55 AM »
factory parts in the motor is the best way to go, IMHO.  If given the chance, do that.

~Joe

Offline Zig

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Re: project beginning
« Reply #34 on: April 19, 2010, 01:12:26 PM »
split cases, all looks well except for damage to end of center gear and minor chipping on meshing surface at left side of right gear. should i be looking for replacements??


« Last Edit: April 19, 2010, 02:08:40 PM by Zig »

Offline Zig

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Re: project beginning
« Reply #35 on: April 23, 2010, 08:54:14 PM »
split cases, all looks well except for damage to end of center gear and minor chipping on meshing surface at left side of right gear. should i be looking for replacements??

opinions?




Offline Old Scrambler

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Re: project beginning
« Reply #36 on: April 27, 2010, 08:39:47 AM »
Zig........the chips indicate poor shifting habits by PO........check the forks for bends or uneven wear.........replace with good gears or touch up the edges..........you should have found some metal bits in the crankcase.

Your plan is good with the bobber-style.........I did a very similar build with that seat on an XS650........I used wide bars with a good bend to give me an upright seating position.  I also used a fender for standard tail-light and plate position with custom light and signals. As you build your motor(s) keep in mind that torque is what is most useful on a bobber versus high-reving horsepower. Also......a suggestion........look into the cable-activated disk brakes used on the CB200 for a small and clean look. You could even go with a double-disk!

I assume your motor is a K5 for parts interchange with K3-K6.   
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Offline Zig

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Re: project beginning
« Reply #37 on: May 08, 2010, 01:09:10 AM »

carb rack, ready for rebuild. glass blasted and ready for new guts.
is there a sealer i can use on the carbs, fuel proof, non yellowinng?? to keep them as good as they look now??
« Last Edit: May 08, 2010, 01:14:40 AM by Zig »

traveler

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Re: project beginning
« Reply #38 on: May 08, 2010, 08:56:01 AM »
not sure on coatings.....but if you wipe them down occassionally with wd-40 and a rag and then buff it out....they will stay that way.

~Joe

Offline Zig

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fovorite tools
« Reply #39 on: May 14, 2010, 01:24:28 PM »
these are the tools that get it done!!

Offline Zig

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Re: project beginning
« Reply #40 on: May 14, 2010, 01:26:23 PM »
not sure on coatings.....but if you wipe them down occassionally with wd-40 and a rag and then buff it out....they will stay that way.

~Joe


will try that, some kind of oil film is what is needed. ta.

Offline Zig

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Re: project beginning
« Reply #41 on: May 14, 2010, 01:28:53 PM »
Zig........the chips indicate poor shifting habits by PO........check the forks for bends or uneven wear.........replace with good gears or touch up the edges..........you should have found some metal bits in the crankcase.

Your plan is good with the bobber-style.........I did a very similar build with that seat on an XS650........I used wide bars with a good bend to give me an upright seating position.  I also used a fender for standard tail-light and plate position with custom light and signals. As you build your motor(s) keep in mind that torque is what is most useful on a bobber versus high-reving horsepower. Also......a suggestion........look into the cable-activated disk brakes used on the CB200 for a small and clean look. You could even go with a double-disk!

I assume your motor is a K5 for parts interchange with K3-K6.   
like the cable operated dbl disk, am looking into it.