Search found 913 matches

by koncretekid
Mon Jun 29, 2020 11:45 am
Forum: News
Topic: It's the big one
Replies: 12
Views: 205
Flag: Canada

Re: It's the big one

"sexigenarian" definition - - an extremely sexy sexagenarian!
by koncretekid
Sat Jun 20, 2020 12:08 pm
Forum: Tech
Topic: 441 Victor resurection
Replies: 13
Views: 719
Flag: Canada

Re: 441 Victor resurection

Sometimes the bolt that holds the ignition rotor on its taper is too long which allows the rotor to move. If you take the ignition stator off, try to move the rotor. If it moves, that's the problem.
Tom
by koncretekid
Tue Jun 16, 2020 11:20 am
Forum: Project bikes
Topic: LOBE 2 20-21
Replies: 23
Views: 1218
Flag: Canada

Re: LOBE 2 20-21

koncretekid the answer to you first question will be fixed, but not low, the answer to your second question is a little bit shorter than the length of string. Anita is the lady to speak to, I spoke to her yesterday on the same subject, but I am not in a hurry. dos it need it ?? See here . MM, I'n n...
by koncretekid
Mon Jun 15, 2020 10:44 pm
Forum: Project bikes
Topic: LOBE 2 20-21
Replies: 23
Views: 1218
Flag: Canada

Re: LOBE 2 20-21

What is the cost of Cook's conversion and when could he have it completed? I would have to know that to make that decision.
by koncretekid
Mon Jun 15, 2020 11:51 am
Forum: Project bikes
Topic: T 25 Project
Replies: 6
Views: 304
Flag: Canada

Re: T 25 Project

Isn't PE 1971? Of all the B50 parts I have, they are in Colorado and I can't get there now. I have a set of cases that need a weld repair where the sump passage to the oil pump has been punctured. I won't be there until this fall but I'll keep you in mind. Other than that, E & V Engineering will hav...
by koncretekid
Mon Jun 08, 2020 9:26 pm
Forum: Off topic
Topic: Lock down projects
Replies: 23
Views: 1058
Flag: Canada

Re: Lock down projects

The trail of my Bonneville bike (B50 now 600cc) is about 4-1/2" with a 30 degree rake angle.
by koncretekid
Mon Jun 08, 2020 2:33 am
Forum: Project bikes
Topic: LOBE 2 20-21
Replies: 23
Views: 1218
Flag: Canada

Re: LOBE 2 20-21

I thought 465cc because I thought you might use the B25 crankshaft (for high rpm) instead and run it in the 500cc class. Because you're starting with the B25/TR25 cases, you won't have the third main bearing unless you plant to weld onto the cases to carry the 3rd bearing. That long stroke crank sho...
by koncretekid
Mon Jun 08, 2020 2:24 am
Forum: Off topic
Topic: Lock down projects
Replies: 23
Views: 1058
Flag: Canada

Re: Lock down projects

Thanks for your explanation. I have considered putting a sidecar on the Bonneville land speed bike, but I don't think I'll go with "0" trail!
Tom
by koncretekid
Sun Jun 07, 2020 10:34 am
Forum: Off topic
Topic: Lock down projects
Replies: 23
Views: 1058
Flag: Canada

Re: Lock down projects

From Cycle World: "Trail (B) is measured in distance (inches or millimeters) between the point of the front wheel’s contact with the ground and a line drawn through the axis of the steering head. Under normal operation, this contact point is always some distance behind the projected line—somewhere b...
by koncretekid
Sat Jun 06, 2020 11:38 pm
Forum: Off topic
Topic: Lock down projects
Replies: 23
Views: 1058
Flag: Canada

Re: Lock down projects

Beat,
Does your new front suspension on your sidecar rig have negative trail? Looks like the front axle may be out in front of the steering axis, but I can't tell from the photo.
Tom
by koncretekid
Sat Jun 06, 2020 10:59 pm
Forum: Project bikes
Topic: LOBE 2 20-21
Replies: 23
Views: 1218
Flag: Canada

Re: LOBE 2 20-21

465cc ?
by koncretekid
Fri Jun 05, 2020 1:14 am
Forum: Tech
Topic: valve lifter wear
Replies: 6
Views: 362
Flag: Canada

Re: valve lifter wear

The indent on the exhaust rocker is quite common, as there is no return spring on the decompressor lever. If you look at the motor when it's running, you can see the lever bouncing back and forth because the cable doesn't retract fully on some and even leaving excess slack won't solve the problem. A...
by koncretekid
Wed Jun 03, 2020 11:25 am
Forum: Tech
Topic: GPS Speedometer
Replies: 5
Views: 323
Flag: Canada

Re: GPS Speedometer

Jack,
It's an actual needle, but of course, it only goes to 200 kph, or 120 mph.
Tom
by koncretekid
Sun May 31, 2020 2:42 pm
Forum: Tech
Topic: GPS Speedometer
Replies: 5
Views: 323
Flag: Canada

GPS Speedometer

Whoops, I meant "speedometer" and I can't edit the topic! (Edit by mm: Your wish is my command) On my recently completed B44 parts bike, I needed a speedometer. Besides the cost of a working Smith's speedo, there are the speedo gearbox and cable to worry about. I noticed a post on Britbike.com by M...
by koncretekid
Wed May 27, 2020 10:30 pm
Forum: Tech
Topic: High ratio B50 rocker arms
Replies: 17
Views: 724
Flag: Canada

Re: High ratio B50 rocker arms

B50 revised head.jpg
B50 revised head
B50 revised head.jpg (24.29 KiB) Viewed 340 times
B50 revised head.jpg
B50 revised head
B50 revised head.jpg (24.29 KiB) Viewed 340 times
I think the included valve angle on the B50 is about 67 degrees, so better than earlier 90 degrees. Here's one you could copy:

Also, you do need to open up the intake a bit:
Tom's B50 head (Ed V.).jpg
My head by Ed V.
by koncretekid
Wed May 27, 2020 10:29 pm
Forum: Tech
Topic: High ratio B50 rocker arms
Replies: 17
Views: 724
Flag: Canada

Re: High ratio B50 rocker arms

I think the included valve angle on the B50 is about 67 degrees, so better than earlier 90 degrees. Here's one you could copy:
by koncretekid
Tue May 26, 2020 12:20 pm
Forum: Tech
Topic: High ratio B50 rocker arms
Replies: 17
Views: 724
Flag: Canada

Re: High ratio B50 rocker arms

Ed Valiket makes them. You will then want to sand them down and polish them. You also have to open up the pushrod tunnel, as the pushrods now move at more extreme angles where they intersect the shorter ends of the rocker arms.
B50 hr rocker arms.jpg
high ratio rocker arm
Tom

P.S. Has anyone heard from Stan lately?
by koncretekid
Tue May 26, 2020 12:01 pm
Forum: Tech
Topic: B44 / B50 kickstart quadrant
Replies: 10
Views: 637
Flag: Canada

Re: B44 / B50 kickstart quadrant

Thanks, interesting info and history. So I suppose I’m back to my main query - can I fit a B50 kickstart quadrant into my B44 (which has a B44 mainshaft) and simply turn the ratchet mechanism the other way round? The B50 quadrant is longer so the recess in the inner timing cover is machined deeper ...
by koncretekid
Sun May 24, 2020 11:46 am
Forum: Tech
Topic: B44 / B50 kickstart quadrant
Replies: 10
Views: 637
Flag: Canada

Re: B44 / B50 kickstart quadrant

B50 mainshaft has the shorter splines but cannot be used in B44 without also changing the inner timing cover, or possibly machining the inner cover to accommodate the B50 kick start quadrant which is longer. I was told by Ed V. that the B44 ones got chipped, as well as the B44 ratchet parts because ...
by koncretekid
Thu May 21, 2020 4:48 pm
Forum: Tech
Topic: Long Con rod, Short Piston
Replies: 19
Views: 590
Flag: Canada

Re: Long Con rod, Short Piston

I'm running my 92mm bore x 90mm stroke @ 599cc in a 650cc class. Sure would be nice to get a 97mm stroke crank to get to 645cc. In 2018,I missed the SCTA speed record by .17 mph (149.99 mph on a 150.164 mph record). Last year the salt was soft, so I didn't make a full throttle run. This year, I can'...
by koncretekid
Mon May 18, 2020 9:53 pm
Forum: Tech
Topic: B25T Gearbox Clicking – What Sound is This?
Replies: 13
Views: 629
Flag: Canada

Re: B25T Gearbox Clicking – What Sound is This?

If you need parts or help, Ed Valiket is only 2-1/2 hours from you in Howard City. See link at top of the page.
Tom
by koncretekid
Mon May 18, 2020 2:15 pm
Forum: Tech
Topic: B25T Gearbox Clicking – What Sound is This?
Replies: 13
Views: 629
Flag: Canada

Re: B25T Gearbox Clicking – What Sound is This?

Layshaft pinion gear (the one that's always engaged with the sleeve gear) is the gear that wears the most. Ratio is 22/14, or 1.57. Sounds pretty close to 1.6.
Tom
by koncretekid
Fri May 08, 2020 11:33 am
Forum: Tech
Topic: Outer timing cover equivalences
Replies: 10
Views: 621
Flag: Canada

Re: Outer timing cover equivalences

Outer timing cover should not be affected by the crank seal, to my knowledge. The later outer timing covers move the wiring for the points to a slot or a hole at the points cavity so the wires do not have to be trapped inside which is a lot handier when removing the timing cover.
Tom
by koncretekid
Thu Apr 30, 2020 11:22 am
Forum: Tech
Topic: B25 piston
Replies: 15
Views: 939
Flag: Canada

Re: B25 piston

If your piston and bore are in good shape, and the clearance is OK, you could probably get away using +.020" rings on the +.010" piston, making sure the ring gap is sufficient. I did that on a race bike once (CB350 with K*wasak* pistons) and never had a problem.
Tom
by koncretekid
Tue Apr 28, 2020 8:45 pm
Forum: Tech
Topic: B44 gearbox in a B40FE
Replies: 6
Views: 1545
Flag: Canada

Re: B44 gearbox in a B40FE

Thanks for posting your pictures. Great looking project. I have a partially built B40 in Colorado (my second home) which had already been converted, but not yet tested. Hope to get back to it, some day!
B40 starting point (1).jpg
B40 Trials Bike starting point
Tom
by koncretekid
Sun Apr 26, 2020 8:56 pm
Forum: Project bikes
Topic: Ben's B50T trail bike
Replies: 38
Views: 7639
Flag: Canada

Re: bbenxe's B50T flat/street tracker

Lengthening the top-out spring should do the same thing as shortening the damper tube, except that shortening the damper tube does not change the length of the normal compression spring (it pulls the stancion down into the slider by the amount by which you have shortened it). You may still have to s...
by koncretekid
Sun Apr 26, 2020 12:53 pm
Forum: Project bikes
Topic: Ben's B50T trail bike
Replies: 38
Views: 7639
Flag: Canada

Re: bbenxe's B50T flat/street tracker

"At the moment I think pre-load is too high at 20mm, will decrease by shortening the spacers under the emulator, putting spacers under the top caps, cutting the springs, or a combination of all three. I also fitted footpegs that I recut the slots on to tilt them backwards and welded flicky footpegs ...
by koncretekid
Fri Apr 17, 2020 11:33 am
Forum: Project bikes
Topic: B25 trials project.
Replies: 56
Views: 3716
Flag: Canada

Re: B25 trials project.

Charlie & me - TR25 - 2.jpg
Charlie and me
I have one like that - - my dog seems to like it!
by koncretekid
Wed Apr 15, 2020 12:25 pm
Forum: Project bikes
Topic: B25 trials project.
Replies: 56
Views: 3716
Flag: Canada

Re: B25 trials project.

minetymenace wrote:
Wed Apr 15, 2020 8:21 am
FranktheWelder wrote:vynl shelf paper
Is that a thing for making seats?
It only works if you don't want to actually sit down!
by koncretekid
Tue Apr 14, 2020 1:35 am
Forum: Project bikes
Topic: B25 trials project.
Replies: 56
Views: 3716
Flag: Canada

Re: B25 trials project.

Thanks!
by koncretekid
Mon Apr 13, 2020 1:49 pm
Forum: Project bikes
Topic: B25 trials project.
Replies: 56
Views: 3716
Flag: Canada

Re: B25 trials project.

Stupid question, maybe, but isn't that foot peg bracket welded on upside down? Put the foot peg on so I can see how it works. I replaced the flange on the end of swinging arm spindle to offer more room and used that point to mount pegs. the part is made from 3mm sheet with 12mm flange. https://live....
by koncretekid
Fri Apr 10, 2020 11:14 pm
Forum: Project bikes
Topic: Converting a B50 to wet sump. (aka Boris Johnson)
Replies: 102
Views: 5629
Flag: Canada

Re: Converting a B50 to wet sump.

You will not be on your own, as we will be watching and will continue to comment. 92mm x 90mm = 599cc per my calculations.
Tom
by koncretekid
Tue Apr 07, 2020 6:22 pm
Forum: Project bikes
Topic: Converting a B50 to wet sump. (aka Boris Johnson)
Replies: 102
Views: 5629
Flag: Canada

Re: Converting a B50 to wet sump.

A true wet sump has one pump pulling directly from the sump and into the crank hopefully via a filter, in my IMHO all the suggestions so far are for a dry sump where the sump is extended in depth. My suggestion was to use the scavenge side of the pump as the main pump, which could pump thru a filte...
by koncretekid
Tue Apr 07, 2020 11:58 am
Forum: Project bikes
Topic: Converting a B50 to wet sump. (aka Boris Johnson)
Replies: 102
Views: 5629
Flag: Canada

Re: Converting a B50 to wet sump.

So enlarge the sump, hook up the outlet from the sump pump thru an oil cooler, back into the inlet pipe, and take out the driven gear from the pump so the oil goes directly into the crankshaft. You could try that, but I would experiment with a B25 motor or a B44 first, as they aren't as pricey as th...
by koncretekid
Mon Apr 06, 2020 12:05 am
Forum: Project bikes
Topic: Starfire 441
Replies: 91
Views: 13754
Flag: Canada

Re: Starfire 441

Must be the virus or the man who tried to stop shipments of masks to Canada, but I can't see those photos here in Canada!
by koncretekid
Fri Apr 03, 2020 12:54 pm
Forum: Project bikes
Topic: B25 trials project.
Replies: 56
Views: 3716
Flag: Canada

Re: B25 trials project.

I have to make a gas tank for my TR25 land speed bike, if I ever get back there (Colorado) to do so. What thickness of aluminum did you use?

And have you found a good source for filler caps?

Tom
by koncretekid
Fri Mar 27, 2020 1:30 am
Forum: Tech
Topic: Swing Arm Design/Chain Adjuster/Geometry
Replies: 15
Views: 1490
Flag: Canada

Re: Swing Arm Design/Chain Adjuster/Geometry

I had to edit my post as I posted the same link twice. It is now corrected.
by koncretekid
Fri Mar 27, 2020 1:07 am
Forum: Tech
Topic: Swing Arm Design/Chain Adjuster/Geometry
Replies: 15
Views: 1490
Flag: Canada

Re: Swing Arm Design/Chain Adjuster/Geometry

Yes, but it's been going on for 9 years, so you'll need some time to read it!

The full build is here: http://www.landracing.com/forum/index.php?topic=9341.0

The suspension alone is here: http://www.landracing.com/forum/index.php?topic=16962.0
by koncretekid
Thu Mar 26, 2020 3:17 pm
Forum: Tech
Topic: Swing Arm Design/Chain Adjuster/Geometry
Replies: 15
Views: 1490
Flag: Canada

Re: Swing Arm Design/Chain Adjuster/Geometry

Bonneville bike rear suspension 2.jpg
Bonneville B50 rear suspension
Here is the rear swing arm I fabricated for my land speed B50, which as you suggest, has a much better supported rear axle than is possible with the flanged type swing arms.

Tom
by koncretekid
Wed Mar 25, 2020 1:05 am
Forum: Tech
Topic: Swing Arm Design/Chain Adjuster/Geometry
Replies: 15
Views: 1490
Flag: Canada

Re: Swing Arm Design/Chain Adjuster/Geometry

"My question is why does tr5/b50 have the snail cam adjustment at the pivot point? Seems that if you go from one end of the adjustment to the other you are going to change the rear suspension geometry to some degree. Probably not significant but it would change the shock angle slightly." The total a...