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Messages - ozzybud
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« on: March 07, 2024, 07:41:20 PM »
32
« on: March 07, 2024, 04:35:41 PM »
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« on: March 05, 2024, 03:10:43 PM »
I chased my tail jetting my 750 for quite some time, what really frustrated me is a lot of carb tuning states to get the main jet sorted first and work your way down…
In my scenario to get it to run right wide open was too lean at idle and to get it to idle the main was super rich, I played with countless needle positions and float heights and in the end a bigger idle jet sorted things out.
I will second what others have said about non genuine brass, even in sport bikes I’ve jetted I try and avoid non genuine jets/needles.
Just another thought, where are you elevation wise? We have from sea level to fairly high base elevations in the pacific west coast to deal with, and small bikes have less hp to deal with jetting that’s off for your ‘base’ elevation. My snowmobile actually had a dial to lean out jetting as I climbed to keep it running optimally as I climbed. I’ve also had dirt bikes with ‘mild jetting’ changes from stock that are widely used elsewhere but would foul plugs at my elevation. Maybe your bike was ‘ok’ or slightly rich at sea level and you’re too high for it to run well now?
I am at or near sea level Seattle Washington My plan is to get everything back to stock settings and jet. #s then go from there. I have 4 OEM #75 jets on the way After what I went through on my CB360 I am leary of using anything other Than OEM especially the needles.
34
« on: March 05, 2024, 02:58:00 PM »
Your photo had me confused (I'm easily confused) - is it a close up of the old silencer end?
Yes it is the silencer end
35
« on: March 05, 2024, 01:00:13 AM »
The P.O. of this bike said he put a re-jetting kit in. He said it included instructions to drill extra holes in the exhaust, Throw away the air cleaner cover and new Main Jets and likely messed with the factory needle Position. ( I cringed a lot when he told me of this) Why didn't Honda think of this?
I rode the bike prior to tearing it down just to do some test and tune and make sure the engine was solid.(about 100 miles) It ran great pulled hard and had equal compression in all 4 cylinders.The carbs did not require synchronization. Plugs 1,2,3 were dark tan #4 was light tan.
The only changes i have made to affect engine performance was install the repro exhaust.
Took it for a longer ride yesterday about 10 miles. ran great at first after 5 miles it started missing on some cylinders. when i got home # 1 was coldish.
removed the plugs 1,2,3 were black and sooty fouled or on there way to fouling.#4 was fine
I removed and cleaned the plugs. All of the idle mixture screws were out 4-5 turns? what? almost ready to fall out... lol Reset to 1.5 turns out.
Took it out today with similar results ran good a little longer.like 7 miles. removed the plugs and they looked similar.
I am assuming at this point that the P.O. removed the #75 jets for something larger. I ordered 4 OEM Used #75 jets and a gasket o-ring set.
I will Check out everything else when i get the carbs off.
Is there anything else I am missing? I spent a lot of time on my CB360 getting it to stop fouling plugs. It ended up being the Chinese needles were smaller diameter and a little bit shorter than oem.
Any suggestion would be appreciated.
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« on: March 02, 2024, 10:44:06 PM »
Welcome to the Forum Paddy.
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« on: March 01, 2024, 10:48:14 PM »
 'Can the Valve cover be removed in frame on the CB400f?'
Yes, it can.
The head & block can also be removed with the engine in the frame - you just have to ensure the camchain does not fall inside.
Thank you Ted! The bike pulls strong , doesn't smoke and has good compression. so i wont be messing with the internals. I Plan on pulling the cover to detail it, while i am at it clean up the carbs and clean up the fins on the head and Jug.
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« on: March 01, 2024, 10:43:39 PM »
Very nice work ozzybud.
When contemporary there were so many different bikes around that these didn't look out of the ordinary, but recently working with someone on their 400, having some time up very close to get something fiddly worked out, then it repeatedly shows what a brilliant piece of production engineering they were at that time, even more appreciated now.
Lovely bike to own and ride.
Thank you! Very well said. When doing my restorations I am constantly amazed at the great engineering these bikes had. One simple feature that always comes to mind is the Passenger Footpegs. Using The Rubber Pad as the SPRING That keeps them in Place( Up or Down).. There are 100 more examples i am sure.
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« on: March 01, 2024, 07:23:34 PM »
'Can the Valve cover be removed in frame on the CB400f?'
Yes, it can.
Thank you Julie
40
« on: March 01, 2024, 07:12:20 PM »
I got everything back together this morning, started right up! Went for a cold and Moist ride around the Block.
It was nice and quiet.. great to not have the clutch basket rattle anymore.
Can the Valve cover be removed in frame on the CB400f?
41
« on: March 01, 2024, 04:53:23 PM »
I got the tank painted a couple days ago. Polished and applied the decals today. Very happy with the results
Hello, with all due respect, why ruin a good paint job with those stickers?
Thank you for the compliment on my paint job!
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« on: March 01, 2024, 02:25:12 AM »
I got the tank painted a couple days ago. Polished and applied the decals today. Very happy with the results
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« on: February 29, 2024, 08:14:34 PM »
CWC have offered to take the outer spokes back and copy my samples, in the meantime I've torqued them up and this is the extent of the bow. Is it something I can get away with or should I get then remade? I'm just concerned that if they come back wrong or even worse than what I currently have I won't have a leg to stand on.
I would get them re made. It will not only make it correct for you but it will help the next guy as they hopefully start making them correct in the future.
44
« on: February 29, 2024, 03:54:20 PM »
I have had great luck with the CMS.NL Kits. They even have the correct gold/yellow Cad nipples.
not sure if they have stainless.
45
« on: February 29, 2024, 12:01:15 AM »
The Spokes don't normally touch where they cross. Are you saying the Bend at the Hub is incorrect? making them bow outwards? Having inner spokes in the outer holes would cause this.
the picture below is an outer spoke(bent over 90 degrees)
Is there a possibility that you have them switched? or the company sent you all inners ?
Maybe remove 2 and compare to the spokes you removed.
In the first picture it looks as if the outer spokes are riding on the inners.
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