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Messages - ozzybud
2
« on: December 26, 2025, 01:25:51 AM »
Merry Christmas 🎅🎄
3
« on: December 01, 2025, 09:56:41 PM »
I was only trying to be helpful.
The original poster was asking for the correct size and I posted the picture of the bag with the correct size
Peace ✌️
4
« on: December 01, 2025, 07:35:57 PM »
This quote is from Hondaman on the us Forums. And i trust everything he says!
"If they were NOT Viton O-rings, they would probably work well. Since they are, though, the 3.5mm dimension might be tighter than the ID of the wasp-waist groove where it sits. With Viton you mustn't make it stretch more than about 5% of its ID or over time it will break: this is partly why Buna 70 remains king in the ethanol-laced fuel world, because it expands when ethanol hits it and shrinks again when it dries out. This prevents them from self-destructing."
5
« on: December 01, 2025, 07:16:29 PM »
Oddjob. Is it your job on this forum to disagree with just about every post that i make on here?
I post from my experience and what works for me. I ask you to do the same. Isn't this why you got booted from the forum?
Friends don't let friends put ethanol fuel into their classic cars .motorcycles and lawn equipment. It gathers water and ruins everything. In your daily driver its fine. But periodic use machines is a Hard No for me.
If you have to use E10 fuel I get it. We can get ethanol free gas in the states.
6
« on: December 01, 2025, 05:56:23 PM »
Is that the correct material Ozzybud?
Says NBR on the packaging and if memory serves that’s nitrile, which is not recommended for today’s fuels containing ethanol. Surely Viton or FKM would be a much better choice?
AFAICR the original orings were nitrile and so I’d avoid replacing with genuine parts for this application as the same problem will just reoccur. Unless Honda have changed the material at a later date to allow for this.
Yes Viton is safe for all modern fuels. Most modern automobiles use nitrile for their hoses and o-rings in the fuel systems.
7
« on: December 01, 2025, 04:43:35 PM »
According to Google serach
The main jet O-ring for the Honda CB400/4 is a 4.2mm x 1.1mm O-ring. This is the correct size for the secondary main jets in the Keihin carburetors used on this model, and it is also the size for many other Honda motorcycles from that era, such as the CB350, CB500, and CB550.
Dimensions: \(4.2mm\) (inner diameter) x \(1.1mm\) (cross-section).
Part Number:OEM part number 91301-426-010.
Please don't trust google for anything these days especially for motorcycle or medical advice. The o-rings i posted above are the correct material and fit. They pop in snugly. All of the kits you can get in the states do not have the correct main jet o-ring. I have been using these for years and sharing with friends. If you were close I would gladly send you a set fir free.
8
« on: November 30, 2025, 10:22:08 PM »
These are a perfect proven fit.1.2mmx3.5mm buna n70
Qty 36 was under $8.00 us
9
« on: November 19, 2025, 12:33:27 AM »
They changed up some engine finishes between the 350F and 400F the valve cover on the 350F is polished and clearcoated. The 400F valve cover is painted cloud silver. The breather cover appears the be as cast with no finish whatsoever. Similar changes to the side case covers.
10
« on: October 31, 2025, 01:43:04 AM »
If you have 2 pin holes you have dozens ready to break through.. A proper application of an Epoxy liner will last for years. The prepping of the tank before application is key. It needs to be free of loose rust and oil or grease.I use acetone as a final rinse. I use a 2 part kit from caswell. https://paulyaffeoriginals.com/products/caswell-epoxy-tank-liner-kit-clear
11
« on: October 29, 2025, 04:00:55 AM »
Its off a 71,72 or 73 CB/CL 350
12
« on: October 27, 2025, 01:10:45 PM »
I just did some tuning on my CB550K1. Needle adjustment, re vacuum sync. Its running smoother than ever all.plugs are a nice tan color. Checking the exhaust pipe right at the head the temps were 95ç -105ç after a 10 min ride.
13
« on: October 20, 2025, 03:11:12 AM »
Standard for an F is 2nd slot from top so I'm proposing using the very last slot
*Little update, I did this today by extracting the needles through the top of the carbs while still fitted which is a whole lot easier. It then wouldn't start off choke which is encouraging as before it would start with no intervention at all. I made the battery a bit weak while trying so stuck it on charge chopine listening to the football. That's as far as I got, can't rush these things!
Please remember after you change the needle positions in place or on the bench you will need to start the bike and get it warmed a bit and do a vacuum sync before test riding. You will.never get the arm positioned in the same place. On the shaft it was before and your synchronization will be all.over the place. If not synchronized it will mimic lean and rich conditions on the plugs after a ride. I believe it is the most important step when tuning.
14
« on: October 15, 2025, 08:41:19 PM »
If you want the correct yellow nipples buy the zinc kits from CMS. They are a perfect match to the originals. DSS has silver nipples.
15
« on: October 05, 2025, 07:44:00 PM »
http://forums.sohc4.net/index.php?topic=89936.0This is from the US forum. I have seen this posted multiple times. If you need varnish blue. Its a 1995 Toyota color code 8A1 Its what I used on my bike
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