Author Topic: Project: 7-Fizzle - V1.1 - If only spring would get here...  (Read 147666 times)

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Offline DustyRags

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That's why it's called a shakedown ride.

Glad it got you home! :)
1976 CB550K- sold
2005 Kawasaki Vulcan 500- sold
2000 CB750 Nighthawk - sold
1975 XL350 - crashed
2004 Suzuki Vstrom 650 - sold

Offline iron_worker

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Well I think my solution of removing the connector body and plugging the pins directly into each other then heat shrink has fixed my problem. I am still thinking about changing to a connector like this though:

http://www.whiteproducts.com/connectors.shtml

Anyone ever do that? I also could just directly solder them together.

I tweaked my voltage regulator to peak out at 14.5V instead of 14.2. I also noticed that with my high beam on my revs have to be quite high to hit the peak voltage... like between 4-5K RPM. I think I've decided that for around town riding I will probably just ride with my low beam on. My voltage comes up to max by 3-4k RPM on low beam. With no headlight on I'm hitting 14.5V before 3k even.

IW

Offline Bankerdanny

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The connections (the 3 yellow wires) from the alternator to the RR are notoriously bad on early GL1000's like mine.

I had two connectors melt together, one of which was freshly rebuilt (by me) using new spades and plastic housings from Vintage Connectors. After the second set melted I just soldered the wires together. End of problems.
"The problem with quotes on the Internet is that you never know if they're true" - Abraham Lincoln

Current: '76 CB750F. Previous:  '75 CB550F, 2007 Yamaha Vino 125 Scooter, '75 Harley FXE Superglide, '77 GL1000, '77 CB550k, '68 Suzuki K10 80, '68 Yamaha YR2, '69 BMW R69S, '71 Honda SL175, '02 Royal Enfield Bullet 500, '89 Yamaha FJ1200

Offline iron_worker

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My problem is in the 3 wires that go to the regulator. I guess the issue is due to the fact that I'm running an Oregon Motorcycle Parts regulator (don't get me wrong, I'm very happy with the reg and rect I got from him). The only trouble is the connector I got from him is a 3 in 1 type connector (instead of the 3 individual bullets as stock). I had it installed on my bike before the rebuild and then when I replaced the wiring harness I moved the plug over from the old harness to the new harness. I think messing around with trying to bend the tabs back and worth to dismantle and re-install the plug likely caused it to have some "slop" and was causing my intermittent charging issue.

Anyway, I think I'll just solder the wires directly together for now and possibly do a wiring harness connector revamp this winter.

IW

Offline iron_worker

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Just wanted to send a big shout out to all those who voted for me for 'Bike of the Month'! I took the august title.

 8) 8) 8)

Thank you guys! I really appreciate it.

IW

Offline wowbagger

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It's never been more deserved. Congrats

Offline cheftuskey121

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I knew you would win it from the moment I first saw your build thread! Congrats man.

Offline iron_worker

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I knew you would win it from the moment I first saw your build thread! Congrats man.

It's never been more deserved. Congrats

Wow. That makes me feel good guys. Thanks again.  ;D

IW

Offline iron_worker

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Hey guys,

I have now broken 1000 miles on the rebuild! It's not huge but it's probably more than I was riding the bike in previous seasons... and still some time left to ride this year!

My charging issue seems to be resolved now. Unforunately it seems that my head gasket is leaking...  :( It's not bad ... probably about a teaspoon per 100 miles or so. It basically just gets some oil on the first couple of fins under the head gasket  and I get a some spots on the side covers from the wind carrying it back. It seems to have happened on both sides right on the outside edges. Not really sure what else I could have done to prevent it from leaking? The head and cylinders were surfaced, I used an MLS head gasket, and I have heavy duty studs. The only thing that I can think of is that my cylinder sleeves may have popped up a bit when they were resleeving my one messed up cylinder from snagging that ring.

Anyway, it's not a bad leak and it only seems to happen with extended highway riding so I'm not going to even worry about it right now. I just wish it wouldn't! So maybe this winter I'll be tearing down my motor again ... would give me a chance to powder coat it all since I'm not super happy with the durability of the Duplicolor.

I'm happy the oil leak is very minor and I'm still able to ride no problem but I'm pissed that it's there at all. I'm open to any suggestions to quick fixes/or what might be causing it.

IW

Offline DustyRags

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Re: Project: 7-Fizzle built in the Man Room! - Small oil leak ...
« Reply #934 on: August 06, 2013, 01:47:19 PM »
Retorque, maybe? Mine got (slightly) loose after a few heat/cool cycles.
1976 CB550K- sold
2005 Kawasaki Vulcan 500- sold
2000 CB750 Nighthawk - sold
1975 XL350 - crashed
2004 Suzuki Vstrom 650 - sold

Offline iron_worker

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Re: Project: 7-Fizzle built in the Man Room! - Small oil leak ...
« Reply #935 on: August 06, 2013, 02:42:30 PM »
Re-torque would mean pulling the engine out of the frame and pulling the cam/cam towers, off would it not?

IW

Offline DustyRags

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Re: Project: 7-Fizzle built in the Man Room! - Small oil leak ...
« Reply #936 on: August 06, 2013, 02:48:52 PM »
I honestly don't know, I've never worked on a 750. On the 550 I just backed each bolt off a bit, and then torqued it back to spec. Didn't need to pull anything off beyond the tank for that, 750s might be different.
1976 CB550K- sold
2005 Kawasaki Vulcan 500- sold
2000 CB750 Nighthawk - sold
1975 XL350 - crashed
2004 Suzuki Vstrom 650 - sold

Offline iron_worker

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Re: Project: 7-Fizzle built in the Man Room! - Small oil leak ...
« Reply #937 on: August 06, 2013, 07:24:52 PM »
Can't even get the valve cover off with the engine in the frame on the 750 unless you have the frame splice kit which I do not.

IW

Offline DustyRags

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Re: Project: 7-Fizzle built in the Man Room! - Small oil leak ...
« Reply #938 on: August 07, 2013, 10:05:44 AM »
Wow, that's annoying!

Working on a modern Kawasaki these days, and I'm baffled at how much less user-serviceable it is than my old Honda was. Just adjusting the valves requires removing the gas tank, draining the coolant and removing the tank, fan and hoses, removing the coils and spark plugs, removing the head cover and removing the oil feed tubes.

Yep, time to go back to a 550! :P
1976 CB550K- sold
2005 Kawasaki Vulcan 500- sold
2000 CB750 Nighthawk - sold
1975 XL350 - crashed
2004 Suzuki Vstrom 650 - sold

Offline iron_worker

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Re: Project: 7-Fizzle built in the Man Room! - Update
« Reply #939 on: August 10, 2013, 03:51:35 PM »
Gave the bike a pretty thorough clean up today. Power-washed, polished all chrome, cleaned and lubed chain, compounded a small scratch I got from laying my jacket on my tank, and then a nice wax job. Here are the results:


A pretty good reflection I'd say.













It was semi overcast so the pics could have been a bit better with more light but they still look pretty good. I'm up to ~1150miles or so now and haven't had any trouble since I sorted my charging system. Just that one small oil leak that only leaks a little bit if I go for extended highway trips ... Definitely not enough to worry about right now but I'm considering tearing into her again this winter. I am also considering redoing the engine paint with powder coat and possibly getting my right side covers and valve cover chrome. All thoughts at this point.  8)

IW

Offline 70CB750

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Re: Project: 7-Fizzle built in the Man Room! - Update
« Reply #940 on: August 10, 2013, 03:53:26 PM »
That's pure Honda porn!
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Offline lwahples

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Re: Project: 7-Fizzle built in the Man Room! - Update
« Reply #941 on: August 11, 2013, 12:24:15 PM »
Sure looks good! Are you feeling the paint was worth the wait?

Offline iron_worker

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Re: Project: 7-Fizzle built in the Man Room! - Update
« Reply #942 on: August 11, 2013, 03:31:20 PM »
That's pure Honda porn!

Why thank you!

Sure looks good! Are you feeling the paint was worth the wait?

You know, I don't think it was worth the wait. There are a few things I'm not happy with:

1) There are a couple lumps in the paint... fortunately they got hidden by the seat
2) They didn't prep the underside well at all and you can see it was just painted right over chipped paint
3) After they managed to mix up the colors ...  :o ... they tried to "save" the decal by sanding around it and masking it off and such. The lines are not crisp in several places like they would be if they had painted the colors properly first and just laid the decal over top (like it said in the instructions...).
4) The decal has a couple small bubbles in it and doesn't meet perfectly in the corner.

Considering how much time they had it, I would expect a better job. It looks good in pictures but if in person you can pick out many flaws. Am I being very anal/a perfection ... sure am.

Anyway, I was planning a ride with a co-worker today that would have been about a 250 mile circuit but it didn't up end working out so I got out for a quick ride on my own for about 70 miles or so.


I rode out to nearby Potash Mine near Allan, Sk. In the background you can see the tailings pile and the beautiful sky today. They say Montana is "Big Sky Country" ... I may beg to differ. lol


Here is the mine, you can see the main shaft and some conveyor galleries leading into the main mill building.


The giant warehouse building is on the very right where the stock all their product.


The potash is loaded into rail cars and shipped out from there. A lot of it actually goes to Asia I think.


The sun was bright today and that really made my recent wax job shine.  8)


Pop!


You can see a bit of my silly oil leak from here...  :(


This is about as bad as it gets and I get a few spots on my side covers from the wind carrying it back. It's not a big deal but just pisses me off since I thought I did everything right. You can also see how my cylinder paint didn't hold up very well ... I suspect this is since I had to re-paint it after I had to have that one cylinder re-sleeved. I suspect I didn't prep the paint well enough and it didn't adhere. All the other paint seems to have adhered better and I think that's because it was going on straight over bead blasted surfaces.

I also suspect that the my sleeves may have crept up a bit when the machine shop that re-sleeved my one bore was has heating the cylinders. I think this is why it's leaking. I really don't know what else it could be... I used all new gaskets (MLS head gasket), all new o-rings, a bit of sealer on the pucks, had the cylinders AND head trued, used heavy duty APE studs torqued down properly ... I just don't know what else I could have done?

Anyway, up to 1250 miles now and still going strong.

IW
« Last Edit: August 13, 2013, 06:28:23 AM by iron_worker »

Offline Syscrush

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Re: Project: 7-Fizzle built in the Man Room! - Update
« Reply #943 on: August 13, 2013, 03:38:33 AM »
Oil is cheap, keep having fun riding it!

Definitely need to try re-torquing before getting into a teardown.
Life is precious: wear your f'n helmet!
There's nothing more expensive than a free bike...
FWIW, I'm not a shill for Race Tech - I've just got a thing for good suspension and the RTCE's are the most cost-effective mod for these old damping rod front ends.

Offline iron_worker

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Re: Project: 7-Fizzle built in the Man Room! - Update
« Reply #944 on: August 24, 2013, 02:38:21 PM »
Well I was gone last weekend and there was crazy construction on the roads I take to work so my poor old bike has been getting neglected... finally managed to get her out today. RK finally got his bike legal again (lighting/license plate issues...) so we decided it was a great day for a cruise.


RK's bike where we first met today.


Big brother, little brother. lol The 400F is like an honest 2/3 the size of the 750 ... which is funny cause RK is about 2" taller than me. lol


A pretty fun little machine. I think he's got his charging system figured out now. Just needs a bit more work with the carbs to get it running right (pods ...  ::) lol) and a fix an oil leak and it'll be an awesome little machine.


Sure is loud with almost no baffle. ha


Made it out to Clavet about 30miles away with no issues. Stopped for a water break.


Did a little tinkering with his idle mix screws. The idle really likes to hang. I convinced him to go up a size from 40's to 42s but I think he's going to have to step up to 45s even. The idle will come down if you bring the mix screws all the way in to 1/4 turn out or so ... which is dangerously close to closing them right off and fouling those plugs ... which we have done. lol


Wasn't a long ride but we weren't convinced his charging system was 100% yet. Anyway, seems like he's probably good to go so I'm sure we'll go again this year! We had a blast regardless.

IW

Offline mwvachon

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Re: Project: 7-Fizzle built in the Man Room! - Update
« Reply #945 on: September 02, 2013, 05:39:50 PM »
IW - I have the same oil leak on my Gold 750-K1. I believe mine is because I neglected to glue the little rubber discs in place when installing the cam holders on the head. I made sure not to repeat that again on the current K1 build!
M.W.Vachon
2014 CB1100 Deluxe
1999 Valkyrie I/S
1971 CB750-K1 (Candy Gold)
1971 CB750-K1 (Candy Red)
Project link: http://forums.sohc4.net/index.php?topic=108498.0]
1965 Honda S90
1976 GL1000
1975 CB400F

Offline RAFster122s

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Re: Project: 7-Fizzle built in the Man Room! - Update
« Reply #946 on: September 02, 2013, 10:05:42 PM »
The oil leak issue might be touched on by Hondaman in his thread about the orings being the wrong size or too soft and wrong size...
Check out his thread...
Also, he mentioned that the Vesrah and others aren't coming with any sealant in the head gasket, thus you need to use some sealant around the oil feed orings and cam chain tunnel. Viton or Buna seals and definitely use sealant if considering synthetic oils.  Even on return orings if using synthetic...

Good luck!
BTW, you aren't alone on leaks, common prob lately according to Hondaman.
David- back in the desert SW!

Offline iron_worker

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Re: Project: 7-Fizzle built in the Man Room! - Update
« Reply #947 on: September 03, 2013, 06:59:19 AM »
I will check out Hondaman's thread. Thank you.

I don't think my head gasket should need any sealant. It is a multi-layered steel gasket and they have a little o-ring shaped indentation around each oil port and cylinder to form a seal. I asked Ken at Cycle X and he said to install dry. I also used some form-a-gasket on the cam tower pucks... I don't think they are leaking though. I think leaks from the cam tower pucks generally come out the front of the engine.

IW

Offline DustyRags

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Re: Project: 7-Fizzle built in the Man Room! - Update
« Reply #948 on: September 04, 2013, 07:02:08 PM »
If the gasket surface was machined (this build or an earlier one) is it possible that the oil channel dowels are too long? Do 750s have those?
1976 CB550K- sold
2005 Kawasaki Vulcan 500- sold
2000 CB750 Nighthawk - sold
1975 XL350 - crashed
2004 Suzuki Vstrom 650 - sold

Offline iron_worker

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Re: Project: 7-Fizzle built in the Man Room! - Update
« Reply #949 on: September 05, 2013, 06:58:07 AM »
The 750 doesn't have any dowels in the oil channels but it does have some alignment dowels... which could still affect the clamping force on the head gasket. The head and cylinders were surfaced so I will definitely keep that in mind and measure the dowels if I take it apart again.

Last night I went for a nice 40 mile ride. Unfortunuately, this month has been real bad for riding (been gone every weekend) but it was good to get out again. I cracked the 1500 mile mark since the rebuild and I'll be changing the oil next ride. (I was going to change it last night but apparently I didn't have any oil left!)

IW