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Topics - royhall
1
« on: December 05, 2025, 05:26:13 PM »
Does anyone have, or knows where to get, the 1.7mm round head vin tag rivets. They are for a USA CB750K4. Cheers.
2
« on: October 01, 2025, 10:28:42 AM »
Morning. Had a quick site search and didn't come up with an answer. Did anyone ever come up with a truly workable solution to the famous CB750K clutch rattle. Somebody mentioned a Barnett kit, is that a real thing and does it work. Cheers.
3
« on: July 13, 2025, 05:18:08 PM »
I have a friend who just dropped off a 1980 CB250N that needs repairs. Just wondering if any of you wonderful people have any stashes of parts available for that model. Am firstly looking for a good set of barrels and a left hand exhaust header pipe. It's allowed as its an SOHC Honda. Cheers.
4
« on: October 04, 2024, 03:37:03 PM »
Just a word about the replica seats sold by DSS for the CB750K. I bought one of these to use on my restored K5 and have been struggling with it ever since. The problem is they are too high, made from a very slippery vinyl, and are rock hard. This is the seat.
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So I bit the bullet and had a new seat custom made by MotoStitch (formerly Nostalgia Seats) at a cost of £220. Just got it fitted today and its about 60mm lower, very soft and comfy, and a good gripping cover. I also think it looks great. What do you think. It makes the bike much safer and easier to ride as I now have both feet firmly on the floor, unlike before. If they are going to make replica's why not make them to the dimensions Honda used. Ridiculous.
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5
« on: September 22, 2024, 03:49:26 PM »
Hi. Got a weird problem that I haven't encountered before. Using the starter on the Bomber, the engine turns slowly and you get just 3 to 4 presses on the button before the battery goes dead. The engine does not start. This problem came on suddenly rather than getting progressively worse. The battery is pulled down immediately to about 5 volts. I guessed the battery was done so I replaced it with a standard lead acid type but it does exactly the same. I have taken the starter motor off and tried it on the bench but it seems to spin okay. I have a rebuild kit for the motor so I will rebuild it before it goes back on. Other than checking all the earths I am at a loss, any ideas out there. Thanks.
6
« on: March 22, 2024, 03:36:27 PM »
Just wondering what the opinions are on this. The Honda manual for the CB750K5 says that the air screws should be backed out 1 turn +-1/8. I have in the past had to go to 2 turns out to get a 750 running correctly. Some of you have far greater experience of the 750 than me, just wondering what you think. Cheers.
7
« on: March 17, 2024, 05:57:41 PM »
Where's the best place to get felt seals for CB450K carb spindles. Someone on here used to sell them but I have a horrible feeling that it was Ken. Cheers.
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8
« on: January 13, 2024, 06:16:14 PM »
Hi. I still haven't managed to get the CB750K5 on the road yet due to carb issues. The carbs were rebuilt by Gerben in Holland and he has made a very poor job of it. They look great on the outside but the actual workings, not so much. I sent the carbs to Matt Harper in Cheshire who has found a long list of issues. The latest he has found is mismatched lever choke lever arms with carb 1 arm being 5mm shorter than the other three. He thinks that No.1 is the correct length and the other three are off K0 carbs. This mismatch causes the choke pushrod to foul on the cable quadrant and does not operate carb 1 choke correctly.
My question is. Does anyone have a spare 4 piece set of choke lever arms for a later model 750. I hope the pictures show what I'm looking for better than words.
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If anyone can help out with this I would be most grateful. Also take as a warning that Gerben ain't so hot on carbs, in fact he should pack it in. I have a list of faults that Matt has found that's makes me wonder how the bike even started in the first place. Thanks for the help.
9
« on: November 03, 2023, 11:49:03 AM »
Hi. My CB350F (the one in the Avatar picture) has started a slight oil weep from the right hand side front of the cylinder head. Leaking between head and barrels. I know Trigger recommends an o-ring thicker than standard at that point which I can't fully remember if I did (done a lot since then). Is it possible that the head just requires re-torquing down, and if so, is it safe to slightly over torque like recommended for the 750. Or should I just take the head off again and fit another new gasket and o-rings. The bike has only done 400 miles since its rebuild years ago. Cheers.
10
« on: September 15, 2023, 06:29:58 PM »
Does anyone know the correct way of fitting the lower trims to the 750 fuel tank. They are these David Silver reproduction ones.
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Not sure quite how to do it as they don't appear to sit flush to the side of the tank. Are they meant to be slid under the metal hooks on the bottom of the tank feeding in from the back? Any help would be appreciated. Cheers.
11
« on: August 14, 2023, 06:18:02 PM »
Anyone going to the Manx GP this year, or is it only me stupid enough. They have changed the format again this year to feature a mere 5 races all week. It's expensive to get and stay there, works out at about £200 a race. There is practice and qually as well so at least something to watch. Weather looks a bit shit as well.
12
« on: August 14, 2023, 06:14:25 PM »
Just wondering if anyone has used Bonhams Auction at Stafford to sell a bike. If so, what was the service like, and did you get a good price. Also, anyone know what the catalogue price is to get in for autumn 2023, they seem a little bit coy about advertising the price for some reason (can't be free with the show ticket surely).
13
« on: June 04, 2023, 02:43:07 PM »
Does anyone know an easy way of getting insurance quotes for a modern bike plus five classics. Tried online but it gets to bike details and its a royal pain keep typing in details of six bikes. Surely a quote can be obtained by just saying modern bike plus five. Or is that too simple.
14
« on: May 17, 2023, 02:11:45 PM »
Just come to fitting the breather pipes on the K5. The bike didn't have any pipes on it when it arrived so I have no idea of the routings. Any pictures available at all, or explanations. I need the rocker box breather, the crankcase breather, and the oil tank breather. Also, on the bottom rear of the oil tank is a small 6mm ish pipe that looks like a breather, what does that connect to. Thanks.
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15
« on: May 11, 2023, 11:39:41 AM »
Good morning all. This is for you budding auto electricians out there. The 750 has arrived at the wiring stage. Starting at the back and working forwards all has gone okay including non standard reg/rect and Boyer ignition. Just got to sort out the pan of spaghetti in the headlight. That's brought up the first issue. Why are there 3 cables shown on the front indicators and only 2 on the rear. The actual units just have supply and earth. I am sure I have done this loads of time before but it has me stumped this time. Cheers.
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