Messages

1

General Discussion / Re: Beautiful Girls in your town - Authentic Damsels

« on: September 27, 2024, 10:11:50 pm »

you can get a blue pill to extend a rod   

 I think old mate has been stretching his rod the old fashioned way. Brute strength.

2

Tech Talk / Re: Twostroke VM jetting, just want to think out loud.

« on: August 27, 2024, 08:18:08 pm »

The venerable VM Mikuni has been the answer for many problems for years but I guess someone said that about the Amal whose technology the Mik was licenced from. Carburation is a painful process as its always a compromise  of where do you want to win the most without losing too much elsewhere. Sometimes its as if you need a needle shaped like Marilyn Monroe and thats where Dell Orto are great as they almost do.

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Tech Talk / Re: Yam DT1 front brake cam improvement?

« on: August 13, 2024, 11:37:09 am »

Yam brakes usually work quite well and not uncommon to find them on early Suzuki as they do fit the fork lug.  Likely nothing you dont already know but guess its the basics with inspecting the hub for roundness grooving glazing and take appropriate action. Not getting decent brakes from a slightly worn shoe is a sign the hub is out of spec. As you can see with a single pivot only one end moves unlike TLS so making sure everything is within spec so you get the most contact with the hub that may need relining. I hear metal spraying them is the way to go. Changing or packing the cam will only give you a different feel as the shoes still travel the same distance and path. One other thing to look at is some bikes have different length shoes in the same hub so check installation is correct. Best of luck with them.

4

General Discussion / Re: Welcome back. Log in issues.

« on: August 11, 2024, 01:38:11 pm »

I figured our illustrious Admin was having a holiday and the easiest way to secure a website is deny and reject all log ins so you dont come back to a huge mess.

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Suzuki / Re: What colour

« on: July 02, 2024, 08:53:28 am »

If you mean the Champagne gold there has been many mentions of it. Use the search function for Champagne gold.

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Tech Talk / Re: 1980 RM 400 fouling plugs

« on: June 12, 2024, 07:21:52 pm »

Every doofus has an opinion on oils and most would be wise to keep it to them selves. As the lads have said your premix ratio isnt the problem. Oil is used to lubricate and cool an engine and many air cooled engines run at 20:1. The more oil molecules in a mix the less fuel molecules for the same amount of wet stuff so the engine will run leaner.

Conondale isnt at that high an altitude at 150M to make a lot of difference. Jetting  is the answer after of course you make sure the float level is set and the air cleaner and the pipe are clean and clear to allow the engine to breathe. If it cant breathe it's like running with the choke on.

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Tech Talk / Re: Circlip on countershaft

« on: June 11, 2024, 04:16:24 pm »

Just a circlip? err noo. A bit of frame of swingarm flex and you have a hell of a lot of side load on that circlip and ....Pop bang, cue the tears as cases dont like a shaft being jammed at 8000RPM.

09140-22006 is used on a few bikes including the rear axles

Nothing that special about it and you can still get the slotted washer ex suzuki.

8

Tech Talk / Re: NGK B10E & B10ES

« on: April 01, 2024, 10:25:26 pm »

On old charts S is for standard 2.6mm electrode. most electrodes are 2.5. Later charts as mentioned by Sleepy show it to be copper core 2.5mm electrode. Your item could be either depending on its age so measuring will tell you.


As you guys all know running a modern plug designed for modern systems with hi energy and maps on an old system is the same as running 98 fuel in a low comp engine. It just cant make use of the modern design as subtle as they are. Im no electrical engineer to be able to work out what my systems need just by the codes further than the basic size reach and range so i like you guys rely on the suck it and see. if it works it works and i cant see a reason to change.

9

Suzuki / Re: RL250 forks - are they 35mm or 1.3/8inch ?

« on: January 19, 2024, 10:42:16 pm »

I wonder what tube size they started with, any machining and what thickness of hardchroming was used.

Logic tells me they started with 35mm tube before grinding and "hoped" the chrome bought it pack to spec though an extra 5mins in the bath is worth millions after a month of production. Remember this was early/ mid 70s and Japanese marques were having a huge rush in production and parts common to many models likely received Nominal components that existed only on paper and not on the blueprints.

As for your issue perhaps throw the legs on a lathe and or install a bush or, if like me you dont have  the space for a lathe id try a few seconds with a hone as i figure thats what the factory would have done on the floor. Just ensure the the ring and seal stopper slide over  the new stanchions.

10

Suzuki / Re: RL250 forks - are they 35mm or 1.3/8inch ?

« on: January 18, 2024, 09:14:04 pm »

Supposed to be 35mm and I doubt any imperial was used on the RL. Possibly that thing they called tolerance or mass production. The actual size used on Suzuki forks is usually a tad under what is specified. My Suzuki's have NOS units and measure 29.96 and 29.97 for a 30mm specified. perhaps your other stanchions arnt suzuki.

11

General Discussion / Re: Any old boys still here ?

« on: November 25, 2023, 10:26:54 pm »

Going via the Internet Archive Wayback machine you can see some topics dated from sept 12 2005. I think i found the site not long after.

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Tech Talk / Re: CR250M inlet port height different, why?

« on: September 10, 2023, 09:59:43 pm »

There was an old mag article that said it was for angles , this was also the time when crank stuffing was promoted. Ask yourself, if it was angles then why didnt all use it the next year and Honda would have kept doing it and none of that happened, perhaps Honda did it just to confuse everyone else.
 Often the simplest answer proves to be the best and such is the case with this "adjustment" for the ring gap and still allow relevant charge amount to be induced within the relevant allocated time.

Plenty of very experienced people have tried even more different methods of improving a 2T engine by modifying the bottom end and they all came to the same conclusion. SFA benefit from anything and nothing that a good pipe couldn't overcome by scavenging. Not corking the flywheels or installing a turbo crank or changing volume as the pipe does the best job of scavenging unless you are using forced induction like snow mobiles and thats a whole new story.

Angles , volume and velocity are all nullified once the transfers are in charge. The inlet is just a method to get the charge into the engine and the bottom end is convenient for it and could even be remote like the first patent on the 2T engine. The bottom end doesn't care about where the charge came from as its a glorified metal tank with an inlet and outlet valve(piston/reed/disk).  Its the transfers the head the pipe and the ignition that give performance, with the CRs its mostly the pipe that did a decent job of scavenging with a decent head design and a well matched gearbox..

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General Discussion / Re: Anyone know US buyers that can post parts to Australia?

« on: August 30, 2023, 02:25:57 pm »

Are more than a few places that do free US addresses.
https://www.google.com/search?q=us+mailing+address+for+online+shopping&rlz=1C1ONGR_enAU1039AU1039&oq=us+mailing+address&gs_lcrp=EgZjaHJvbWUqBwgBEAAYgAQyBggAEEUYOTIHCAEQABiABDIHCAIQABiABDIHCAMQABiABDIHCAQQABiABDIHCAUQABiABDIHCAYQABiABDIHCAcQABiABDIHCAgQABiABDIHCAkQABiABNIBCTEwODcyajFqN6gCALACAA&sourceid=chrome&ie=UTF-8

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Tech Talk / Re: Tail light issue on 06 KTM 250 exc

« on: August 13, 2023, 01:12:27 pm »

Typical Poor earth situation. either poor grounding or sufficient wire gauge as its only good enough for the one circuit to operate at a time. First check your grounding so its good.

15

System problems? / Re: Is security certificate going to be updated?

« on: August 10, 2023, 09:25:18 pm »

I believe you have hit it on the head Peter.  Its an issue with an over zealous security program on the users device  marking the page as a possible threat for some minor issue with the page or the host. Lowering your security settings or marking the page as safe should see the issue resolved.

I run low settings on windows preferring to make an educated choice rather than allow a glorified spell checker to make choices for me. I dont run an AV at all for much the same reason as annoying false positives but I do have malware programs set to scan  quarantine and ask for instruction once a week. And before someone says its risky i am microsoft certified in various platforms.