Author Topic: 1980 CB650c Rest-o by a crabby "old-timer" (Read 131103 times)

MikeB · « **Reply #450 on:** April 25, 2009, 06:24:07 PM »

opps

the pickups have a permenet magnet If that helps TT

Do the Ign. coils get there power through the spark units ?

MikeB · « **Reply #451 on:** April 25, 2009, 06:42:24 PM »

Quote from: mystic_1 on April 25, 2009, 05:57:55 PM

Quote from: MikeB on April 25, 2009, 05:14:17 PM

but if the pulse gen. had a higher than normal Res. when hot would this or could this cause an excessive current draw from the spark units or ign. coils ?

Higher resistance = less current flow.

Lower resistance = more current flow.

mystic_1

this is true but don't the pickups just send a signal to the spark units to discharg the coils and then let them recharge

still trying to figure out the schematic from Pinhead (I learned about this stuff in the 80s and haven't used it since, amazing what you forget in 30 yrs.

)

MickeyX · « **Reply #452 on:** April 25, 2009, 07:08:12 PM »

Well, we're back. It took a little ingenuity on Kit's part to rig some stuff up so we could make things fit next to the crossbar that the tank sits on. In the end, we have new threads and things are all snugged up.

Now the bad news, there is a bad carb leak again. She'll have to pull them back off, unrack at least #1 carb and fix it. She's not happy...

Frankenkit · « **Reply #453 on:** April 25, 2009, 07:30:12 PM »

Well... errhhh...

I WAS happy, and so was the bike. She got so excited, she pi$$ed all over the ground.

For those keeping score, this is the brass T that attaches to the gas line. The specific p!ssing o-ring is the one that goes into 2.

WHY I don't know, because I oiled all of them before installation, they're all NEW... I dunno. grrr...
I wanted to ride to work tomorrow, but I'm so g-d slow at carb disassembly/repair/reassembly and it's already 7:30... *sigh*.

and not much time to do it until Wednesday.

Stupid work.
Stupid school.

MikeB · « **Reply #454 on:** April 25, 2009, 07:44:20 PM »

Quote from: Kit on April 25, 2009, 07:30:12 PM

Well... errhhh...

For those keeping score, this is the brass T that attaches to the gas line. The specific p!ssing o-ring is the one that goes into 2.

and not much time to do it until Wednesday.
Stupid work.
Stupid school.

hope thats not the one that you repaired with the JB weld is it

Frankenkit · « **Reply #455 on:** April 25, 2009, 07:48:37 PM »

diff. set.

MickeyX · « **Reply #456 on:** April 25, 2009, 07:56:48 PM »

yeah, that was the other bike, Samson that got JBWeld.

Gonna watch The Postman and relax...

MikeB · « **Reply #457 on:** April 25, 2009, 08:01:56 PM »

Quote from: MickeyX on April 25, 2009, 07:56:48 PM

yeah, that was the other bike, Samson that got JBWeld.

Gonna watch The Postman and relax...

well that's good to here i liked your fix for that

don't know about you guys but I hate redoing things

good luck
Mike

mystic_1 · « **Reply #458 on:** April 25, 2009, 10:42:19 PM »

Were those OE o-rings? Size matters.

mystic_1

Hush · « **Reply #459 on:** April 26, 2009, 03:30:10 AM »

This I stole from another thread by Pinhead Kit just in case you miss reading his post.

And here are a few tips. When the ignition system is acting up, but it is mostly when the engine is warm, don’t suspect the spark units. The pulsers are likely the problem. When the ignition performs badly whether hot or cold, then the spark units become more suspect.

he got this off a CX site but they are a very close cousin of our CB650's being the last of the real SOHC4's.

Frankenkit · « **Reply #460 on:** April 26, 2009, 06:14:57 AM »

interesting.

Yeah, the orings were OE. $:-\$

MickeyX · « **Reply #461 on:** April 26, 2009, 12:06:39 PM »

I scored some OT today but I'm done a few hours before Kit so I guess I get to head home to remove the seat, tank and try to take out the carbs to give Kit a little headstart on fixing this thing. (again) I'd really like for her to be able to ride to college again this week. She needs the time to get used to the extra weight of the full bags for when we start bike camping later this summer.

I saw that too, Hush. Interesting info in that whole paragraph.

Frankenkit · « **Reply #462 on:** April 26, 2009, 12:33:03 PM »

it's funny, I bought the honda oem carb kits this time, and not only was the quality about on par with Keyster, but none of the o-rings seemed to really make those tubes feel *tight*. like they'd fall in place lubed or not.

mystic_1 · « **Reply #463 on:** April 26, 2009, 07:38:18 PM »

That IS odd.

Some years ago at a swap meet I scored a metric o-ring set. It includes many different sizes of o-ring, and is one of the better investments I have made. Think I paid like 5 or 10 bucks for it and I'm still using them years and years later. Have not had to buy o-rings from Honda for a while now. When I need to replace an o-ring, I just bust out the micrometer and measure the sealing area and the thickness of the old o-ring, if it's still in one piece. Has not failed me yet. Just rebuilt a friend's carbs last night with this set.

If you go this route, make sure the rings are fuel-resistant.

mystic_1

Frankenkit · « **Reply #464 on:** April 26, 2009, 09:03:51 PM »

Just tore them apart and reassembled, as MickeyX was a saint and took 'em off the bike for me.

The suspect o-rings were actually sealing quite tightly, so I lubed 'em with the o-ring lube Soos sent us and reinstalled. I then started to suspect the fuel line itself. The little hose clamp I'd used to snug the line onto the little brass T wasn't as tight as it could've been so I tightened it up enough that it seems highly unlikely it'd leak. I also added a second clamp under my inline fuel filter and snugged that one up, too, just to make sure I'm not leaking there, either.

I hope this doesn't lead to me having to re-sync the carbs, but then again I'll have to take them off when I get them rejetted, anyway.

BTW, Soos, what's your idle jet at? I just want to enrich it enough that it'll warm up a little faster, not be as boggy starting out, won't have to go the first mile or so with the choke on a warm day.

I suppose your altitude would make a difference, but I'm still curious.

Soos · « **Reply #465 on:** April 26, 2009, 09:31:45 PM »

dunno....
It's been almost 2 years since I have ran my pd50 carbs.

I can check though.
I doubt I changed anything from last running them.

l8r

Frankenkit · « **Reply #466 on:** April 27, 2009, 07:54:46 AM »

I have a new possible lead on the starter problem.

Someone mentioned the power cable going to the starter- could that be it? just a corroded + cable to the starter motor (since it grounds by bolting into the bike case itself, I can't imagine it could be a bad ground...) a new cable is $33 from Honda, but I'm going to test resistance and generally try to swap that one for the one on Samson to see if it solves the problem.

Hush · « **Reply #467 on:** April 27, 2009, 02:39:17 PM »

You go girl, raid that "parts" bike, Mickey will never know.

chuck me the stator while you are in there too.

Frankenkit · « **Reply #468 on:** April 27, 2009, 03:56:24 PM »

ha. No, Samson is more a 'willing donor' than a full on parts bike

MickeyX · « **Reply #469 on:** April 27, 2009, 07:03:51 PM »

HEY!!!

Why am I buying parts 4 a parts bike??? $:-\$

Frankenkit · « **Reply #470 on:** April 27, 2009, 07:06:28 PM »

cuz that project's 2nd in line...

mystic_1 · « **Reply #471 on:** April 27, 2009, 11:47:03 PM »

Quote from: TwoTired on April 27, 2009, 10:39:45 PM

When I began collecting "parts bikes', I'd borrow the part to keep the main ride going, and then couldn't resist replacing the part with new "to keep the inventory stable". Eventually, the parts bike(s) became a runner, and another bike was added, and so on.

Would you call that "trickle up economics"?

mystic_1

Frankenkit · « **Reply #472 on:** April 28, 2009, 11:11:37 AM »

I'm realizing thick leather chaps, while HAWT are also hot. Really, really hot, anywhere above, like, 70. I'm kinda looking at Bohn armor for under my jeans (or under chaps, depending on the weather) or Joe Rocket Alter Ego pants (to match my warm-weather jacket)... and I'm torn.

While the Bohn would take away from my safety-nerd factor, being under my jeans... they would offer nil for rain protection, though I still have bicycling rain pants, or could wear cheapo frog toggs, or whatever. I could also wear the bohn armor under my chaps in colder weather and have some actual CE armor protection instead of just abrasion protection. This makes sense to me because of my bony ass, and that a lot of the injuries we see are impact trauma, not just abrasion.

The JRs are cut female-friendly (way too low on my butt, like I have stilts for legs, and I'm a skinny thing and HAVE long legs) but have a rainproof liner. They don't breathe near as well, but I could wear almost anything under them. They have some armor, but not as good as the Bohn armor, and it's squishy foam instead of the CE stuff... no tailbone protection and hardly any for the pelvis/hips. I guess the other major plus on their side is that they have heat resistant panels along the insides of the legs... but that's kind of a necessity since they're made of some kind of 'rock tex' polyester.

So... yeah.

I figure it's worth investing in good warm/hot weather gear that I want to wear instead of just trying to 'deal'... I tend to be kind of heat sensitive and I was freakin' dying the other day in just the 80s, riding or still.

If I find something that works well, I'll buy one for MickeyX cuz I need her protected, too. We have a lot of miles to log together.

MosquitoJones · « **Reply #473 on:** April 28, 2009, 11:48:54 AM »

I have a pair of Scorpion Exo Deuce overpants that I really like. I've recommended them to a couple people and everyone who's bought them likes them. They have armor in the knee/hips, mesh panels in the thighs for ventilation, and a removable wind/waterproof liner. If you can find a pair to try on, I say give 'em a shot. Plus they come in black, so they already go with your bike

Frankenkit · « **Reply #474 on:** April 28, 2009, 12:27:23 PM »

Yeah, I like the way those look. I'm trying to go for all-around flexibility with my setup, figuring the more flexible my gear is, the fewer individual expensive things I have to have. I guess sometimes that works, sometimes it doesn't.

I figure 9/10 of my riding is going to be around-town, to work, to school, and on errands. the last 10th will be for trips where I have to substitute quality for quantity because I can't pack much with me.

Stop and go, around here, I think kind of necessitates cooler-wearing stuff, because I BAKE when I'm not moving, and there are a LOT of red lights and stop signs, school zones and traffic jams on my way home. TO school or work isn't so bad, it's cooler that early, and people are usu. headed the other way.

The same is true for MickeyX, with traffic etc on the way home. I think also it's a little awkward walking into work at the hosp. wearing chaps, but maybe not. She doesn't really give a damn what people think.

I wanna be that way, but I don't think I'm cool enough to pull it off.

The other thing about the EXO pants and the J.Rockets... and most of the over pants, actually, is that they're all black, which sorta defeats the purpose of the mesh. Ugh. 'course I would get any lighter colored pants filthy in mere moments (or the bike would pee on them just cuz they were clean) so... I'm still leaning toward the padded underpants. I know Groovieghoulie bought some after his wreck and was (is?) a major fan.

I dunno. I have a while to wait for a payday or two to come by, but I want to really research this. At what I make, I can't really be as impulsive as I'd like.

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Author Topic: 1980 CB650c Rest-o by a crabby "old-timer" (Read 131103 times)