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Messages - Oddjob
1
« on: February 14, 2026, 12:20:03 AM »
Do not use fuel containing ethanol?  ? Does he not know that is almost impossible, sure you can find ethanol fuel but if you're out on a ride that's not always possible, you take what you can find sometimes.
2
« on: February 14, 2026, 12:16:37 AM »
Didn't know you had a CBX as well Murf. Jealous now. Keep promising myself that if I get some money together someday and it's not earmarked for the house I'll treat myself to a red CBX. Not the prolink type though, never really liked those. Fancy a CBX550 as well.
3
« on: February 13, 2026, 08:07:36 PM »
May be a while before I can get to it. It's above the door in my garage and my mobility these days leaves something to be desired. As soon as I can get to it and remove the PCB I'll contact you. Thanks mate. I'm kinda low ATM and little gestures like yours mean so much when you feel the worlds against you.
4
« on: February 13, 2026, 07:53:58 PM »
Still got my blown Ultrasonic Ash. Never got round to fixing it. If I sent you the PCB do you think you could fix it?
5
« on: February 13, 2026, 07:51:19 PM »
IIRC Dom you have a 550F and Murf has a 550K, spacers are different. The 550K is essentially a 500 four with a 550 engine in it so it needs the 500 spacer dimensions.
6
« on: February 13, 2026, 12:31:27 PM »
Max used to make them in stainless Murf. He has an eBay page nowadays and they could still be listed on there. He made one for me when he was a member on here and did a really great job of it as well, no more rust etc.
7
« on: February 12, 2026, 07:32:53 PM »
How do the part numbers compare to the ones shown in the 500 manual?
8
« on: February 11, 2026, 11:27:09 PM »
If you use a used ring and it's within spec then yes stay standard. Change the pistons though. However you'll normally find it will be out of spec, then you're left with wondering if it's the rings which are worn or the bores or both. Only with a set of new rings can you be certain. I did this test on my NOS barrels and you'd expect them to all be at the bottom of the spec range but in fact they were around the middle. Wasn't best pleased by that but what can you do. If you were local I'd pop round with a NOS set of standard rings and we could see what they measure up at. However check the bores first, with that amount of damage on the pistons I'd expect some on the bores as well. Maybe post some pics of the bores.
9
« on: February 11, 2026, 10:24:24 PM »
I can find 2 sets of 0.5 oversize rings and 2 genuine 0.5 oversize pistons. However Cruzinimage will be much cheaper, I'm personally not a fan of Cruzinimage as I hear bad things being said of them on the USA site amongst others, especially on ring quality.
Oddly I'm going through the same as you. I have a 500 engine which I'm converting to a 550 set of barrels, I had one set of barrels ceramic coated and then found a mark on the bores that meant I had to consider a rebore. I decided to go 0.5, got new rings and for some reason I ended up with more 0.5 pistons than I needed. Hence the extras I mentioned before. Then I found a set of NOS 550 barrels going cheap, so I bought them and had to then source a set of genuine standard pistons and rings, which I did. I now have to decide which set I'll fit, the ceramic coated set need a bore but I can't work on the bike just yet due to health problems so no rush. I may keep the NOS barrels for spares, they'll only go up in value.
10
« on: February 11, 2026, 09:58:34 PM »
Have you had the bore measured yet? First oversize 0.25 may not be enough to clear the bore, 0.5 might be a better bet. CMS used to sell the rings in that size although they come in non standard boxes even though they claim they are genuine Honda. I reported them to Honda for that. They are made by the same manufacturer as the genuine rings though. I did have some spare 0.5 genuine Honda pistons but can’t remember how many I have, at least 2 maybe 3.
The other alternative is to risk staying standard. They are shed loads of standard pistons around, second hand as well. Someone on here will have a full set after having a bore. Replace the pistons and buy some genuine standard rings, should be some of those around as well. Use a set of new standard rings and check the end gap and see what it comes out as, still in spec, stay standard. If out of spec then rebore the barrels.
11
« on: February 11, 2026, 07:56:25 PM »
Personally I would not recommend that. From experience I know that firms take every opportunity to make as much profit as possible. So they’ll supply whatever they can find that makes the most money. They may last but most don’t. 2 years or so later and you need it done again due to a poor job. Do it once and do it right.
Try and find genuine pistons and rings if at all possible. Not as cheap as say Cruzinimage but better quality.
12
« on: February 10, 2026, 07:46:57 PM »
Dynasurf told me they’d stopped doing bike forks. Said it was too much trouble and they had enough work already so wouldn’t miss them.
13
« on: February 09, 2026, 05:55:09 PM »
Lots of negative reports on the DS harnesses, wrong colours used and no literature to tell you what they are meant to be.
My harness I removed from my 500 is actually from a 550F2 I bought as a write off back in the late 70s. I liked the fact it had multiple fuses instead of the single one on the 500 so I ended up with a lot of 550 parts on my 500, something I’m quite happy with. A few years ago I bought a NOS F2 harness still sealed in its bag. My existing harness is in really good condition with just one splice where I installed a dual ignition lock. Easy to revert back to standard. Not sure yet what harness I’ll use when I rebuild the bike later this year. I also have a brand new aftermarket harness made by one of our members on here called Big Al. It’s very good. That’s for sale if you’re interested.
14
« on: February 09, 2026, 04:23:17 PM »
IIRC the seal used to clip onto the rim of the plenum chamber. It’s like the letter U. Honda used a very similar sort of seal on the edge of the seat pan to stop the pan from cutting into the cover. Surely something similar can be found online. Other that that some stick on foam should do the job, it’s only stopping any unfiltered air from getting into the intake.
15
« on: February 09, 2026, 04:19:33 PM »
Tbh that head looks a bit junk so why not try and see if you can do it. I’ve used the genuine Honda tool for seat recutting. It’s air driven and uses stones not metal cutters. The original tools for the 500/550 were however metal and hand operated, try and look for something similar and have a go.
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