Search found 876 matches

by Mr Mike
Fri Aug 16, 2019 4:44 pm
Forum: Tech
Topic: B44 primary chain tension
Replies: 1
Views: 592
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Re: B44 primary chain tension

Doesn't really matter which side you measure, but you must pull out the slack on the top or bottom and measure on the other side. The kicker will tension the bottom because as it is driving from the clutch. The engine sprocket when it is driving tensions the top. If I have the cover off I just turn ...
by Mr Mike
Mon Aug 12, 2019 1:24 am
Forum: Tech
Topic: Getting out the little bearing of the layshaft
Replies: 9
Views: 1881
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Re: Getting out the little bearing of the layshaft

First you get a 5/16ths (I think) carriage bolt about 2 inches long. For those not familiar with the term “carriage bolt”, it’s a bolt with a round head. Underneath the round head is a square shoulder. It is used for fastening wood. As you tighten up the nut the, force pulls the bolt head down into ...
by Mr Mike
Sat Mar 31, 2018 4:25 pm
Forum: Tech
Topic: Stainless Steel Luggage Rack
Replies: 23
Views: 5146
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Re: Stainless Steel Luggage Rack

MM is right. I have one of the painted luggage racks and you need an assortment of bungies to fasten your gear. A couple of strategically placed zip ties helps.

Mr Mike
by Mr Mike
Sun Oct 29, 2017 4:28 pm
Forum: Tech
Topic: Starting a B50
Replies: 34
Views: 6252
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Re: Starting a B50

Jon, Read all the little items at the end of my post earlier in this thread. When you turn it over past TDC, continue to slowly push the kicker till you feel some springy resistance. That is when the exhaust valve is starting to open. Reset the kicker to the top, turn on the ignition and kick smartl...
by Mr Mike
Mon Jun 19, 2017 3:02 am
Forum: Tech
Topic: B50 Carb setup
Replies: 143
Views: 28144
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Re: B50 Carb setup

I use a a #78 drill bit to clean the pilot regularly. It's the best way I have found to keep it clean. Snice al my experiments with carb and starting procedure, my B50 starts when cold on the first kick virtually every time...only occasionally does it take two kicks. When it is cold I always trun th...
by Mr Mike
Wed Jun 07, 2017 9:33 pm
Forum: Tech
Topic: oil pressure
Replies: 18
Views: 3657
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Re: oil pressure

I haven't posed in a while but I have heard this complaint on the Brit Bike site over and over and over for the A65 and also the B25. I do not know if my pressure was ever low on my B25 as it did not have a warning light nor did my A65. I have sold both bikes, however on the A65 I fitted a gauge and...
by Mr Mike
Thu Dec 15, 2016 3:01 am
Forum: Tech
Topic: B44SS Big End
Replies: 13
Views: 2291
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Re: B44SS Big End

You may have big end problems but your initial description accurately describes "piston slap caused by a worn piston, A rebore and accurately fit piston and rings cures that easily. Check the tge piston and bore for wear while its apart.

Mr Mike
by Mr Mike
Sat Sep 24, 2016 2:05 am
Forum: Tech
Topic: Air Lever
Replies: 14
Views: 3025
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Re: Air Lever

I have tried a choke (air slide) and prefer tickling. I have got my routine for the b50 and it works well so I am sticking with it. It is covered in detail on previous posts. I bet a lot of B50's were left to live out there days in a shed or sold because they can be very hard starters.
Mr Mike
by Mr Mike
Thu Sep 08, 2016 12:11 pm
Forum: Tech
Topic: Installing new valve guides
Replies: 43
Views: 7036
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Re: Installing new valve guides

Back in the day when I had few tools and less money I used to do it myself as the shop manual describes Today I would not have the guides replaced but simply relined and reamed to fit the new valves. Saves wear and tear on the head by not pressing or driving out the old guides. I had my B50 done thi...
by Mr Mike
Fri Sep 02, 2016 1:57 am
Forum: Tech
Topic: Transmission issues
Replies: 21
Views: 3335
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Re: Transmission issues

Claus, It is easier to work in the transmission with it in the frame. I put mine up on a homemade lift and pull up a stool. Very comfortable. I have done it on the bench also but you will have to make a little standor jig for the motor/trans whereas as the if you leave it in the bike, the bike becom...
by Mr Mike
Thu Sep 01, 2016 1:49 am
Forum: Tech
Topic: Transmission issues
Replies: 21
Views: 3335
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Re: Transmission issues

Claus, Hard to explain why, but your description is exactly how mine behaved when I broke that spring (2X). (1) Beware of aftermarket springs and (2) don't pull the engine just the side covers and (3) make sure the spring is aligned by putting the shifter forks on their pivot rod to ensure the nose ...
by Mr Mike
Thu Aug 18, 2016 2:10 pm
Forum: Tech
Topic: The best way to get an honest 40hp from a B50
Replies: 20
Views: 3595
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Re: The best way to get an honest 40hp from a B50

Give Ed V a call. He's been building them for years. HP Stan also knows what is possible. Unless you want to race with similar I have found that a good running B50 is all I need. It can keep up on most of the four lanes but it is best as a back road cruiser. OTOH if you want to see what can be done,...
by Mr Mike
Tue Aug 16, 2016 1:43 pm
Forum: Tech
Topic: Starting a B50
Replies: 34
Views: 6252
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Re: Starting a B50

Beat, what is your method? I know your machine is significantly modified. Mine is very much stock except for a 32mm ported intake and a 32mm concentric carburetor. All ignition components are stock. One of these days I will try to perfect a hot start procedure. Mine starts equally well when cold or ...
by Mr Mike
Mon Aug 15, 2016 1:30 am
Forum: Tech
Topic: Starting a B50
Replies: 34
Views: 6252
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Re: Starting a B50

Beat, If you think about it for a minute all we are saying is don't start the kick right past TDC. Turn the engine over farther before starting the kick so that the engine will have more speed as it approaches compression and ignition, It makes kicking easier, less stress on kick start mechanism, an...
by Mr Mike
Sun Aug 14, 2016 12:54 pm
Forum: Tech
Topic: Starting a B50
Replies: 34
Views: 6252
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Re: Starting a B50

Sly, You are on target. Both the B44 and the B50 need to have the kick started when the exhaust valve starts to open. That amounts to kicking the lever about half a stroke past TDC on compression. That in effect has the piston moving considerably faster when it gets to intake and compression. This f...
by Mr Mike
Sun Aug 14, 2016 3:07 am
Forum: Tech
Topic: Starting a B50
Replies: 34
Views: 6252
Flag: United States of America

Re: Starting a B50

Here's my method after years of experimentation with BSA singles and doing it wrong for years: (1) Set throttle stop up to a fast idle (about a half turn on the screw from normal idle). (2) Tickle carb amply (3) If cold, kick thru a couple times using compression release to wet the intake with ignit...
by Mr Mike
Sun Aug 07, 2016 4:26 am
Forum: Tech
Topic: Sick B50SS
Replies: 52
Views: 7773
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Re: Sick B50SS

I have a chart somewhere where I measured how long the kicker stays engaged, but found it much easier to ease it over TDC and keep gong slowly till you feel the springiness of the exhaust valve opening. Reset kick and give it a go. Need it set at a fast idle, clean pilot jet, well tickled and it usu...
by Mr Mike
Tue Aug 02, 2016 2:03 am
Forum: Tech
Topic: Amal Mk2 on B44
Replies: 23
Views: 4514
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Re: Amal Mk2 on B44

I once had (still have it) a 32 MIK roundslide on my B44. Once I got it jetted right it ran magnificently throughout the range and would idle like a tractor. But the enricher circuit would not let it start cold. I worked on it for a long time and in frustration went back to a 32mm Amal. I will not o...
by Mr Mike
Tue Aug 02, 2016 12:56 am
Forum: Tech
Topic: Great new measuring cup
Replies: 8
Views: 1782
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Re: Great new measuring cup

They work good. Many years ago while going to college I was a hospital orderly on second shift and emptied my fair share of those things. It was those kind of jobs that served up the motivation to get my degree in Engineering

Mr Mike
by Mr Mike
Tue Aug 02, 2016 12:51 am
Forum: Tech
Topic: Sick B50SS
Replies: 52
Views: 7773
Flag: United States of America

Re: Sick B50SS

Well I guess I must have been doing it wrong, but it never worked for me. Maybe 73 years old and not being too big a guy has something to do with it. I bump started lots of stuff in my days, cars and bikes, but the b50 regardless of gear and position skids to a stop. With the kick start I don't have...
by Mr Mike
Mon Aug 01, 2016 3:07 am
Forum: Tech
Topic: Sick B50SS
Replies: 52
Views: 7773
Flag: United States of America

Re: Sick B50SS

I have never been able to bump start my B50. I push it as fast as I can run and put all my weight over the rear wheel, pop the clutch, and the tire just skids to a stop. I tried it many times in different gears all with the same result. Maybe if I was 25 years younger and 50 lbs heavier it might wor...
by Mr Mike
Fri Jul 29, 2016 1:42 pm
Forum: Tech
Topic: Sick B50SS
Replies: 52
Views: 7773
Flag: United States of America

Re: Sick B50SS

I would surely like to know what refurbishing you could do for $100. I was at about $1500 on mine but admittedly it was in very bad shape and I had to do everything new. On the starting, the carb set up is vital. Mine will not start at normal idle setting so I use a extended adjustment a crew to set...
by Mr Mike
Thu Jul 28, 2016 1:38 am
Forum: Tech
Topic: Sick B50SS
Replies: 52
Views: 7773
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Re: Sick B50SS

I sure would have got it running before disassembly as you would have a lot more information with which to make a decision. I'll say that most of us when we acquired our B50's found them to be cantankerous starters at times. But thru this forum and some experimentation we learned a system that makes...
by Mr Mike
Fri May 06, 2016 2:42 pm
Forum: Tech
Topic: What size rings do I need?
Replies: 14
Views: 2416
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Re: What size rings do I need?

I have heard the argument on bedding in rings many times over. Some say to run the motor pretty hard after rebuild, others say just normal driving, and still others recommend 250 miles of easy riding. I have done a half dozen re-bores and piston/ring fits on various BSA's and each time I carefully c...
by Mr Mike
Thu May 05, 2016 3:36 pm
Forum: Tech
Topic: short
Replies: 19
Views: 3637
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Re: short

I'm just loving this thread. It amazes me what lengths folks will go to make 1940ties technology go faster. The sad part is that all they guys that work this stuff out are old and most youngsters today are only challenged by how fast they can text on their cell phones and update their facebook pages...
by Mr Mike
Sun May 01, 2016 3:18 pm
Forum: Tech
Topic: What size rings do I need?
Replies: 14
Views: 2416
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Re: What size rings do I need?

My experience with rebores is to give the cylinder to the shop and let them decide what to rebore to so it will match the next oversize available piston when it is properly clearanced. You have to go to a shop that has the available oversize pistons in stock so he can choose the correct one after se...
by Mr Mike
Sun Mar 27, 2016 1:44 am
Forum: Tech
Topic: Which way do they go
Replies: 4
Views: 1125
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Re: Which way do they go

I did a little research on the internet on SLS brakes. Many sites didn't explain much but basically here's an explanation of how an SLS brake works. On a B50 the leading shoe is towards the front. The force of the cam actuator and the drag of the leading shoe create a resultant vector force that inc...
by Mr Mike
Fri Mar 25, 2016 10:27 pm
Forum: Tech
Topic: Which way do they go
Replies: 4
Views: 1125
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Re: Which way do they go

OK so I am looking at the B50 rear brake from the left side of the bike and the wheel turning counter clockwise (bike going forward). The cam actuator is on top. By your definition the shoe to the front is the leading shoe. The actuation force is in the same direction as the rotation . So conversely...
by Mr Mike
Fri Mar 25, 2016 3:09 am
Forum: Tech
Topic: Which way do they go
Replies: 4
Views: 1125
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Which way do they go

My rear brakes on my B50 aren't very good. I pulled off the wheel and took them apart, I deglazed the shoes and the drum . When putting them back together, the shop manual says the shoes are interchangeable, however the parts manual lists them with different numbers. The linings are not centered on ...
by Mr Mike
Thu Mar 24, 2016 2:45 am
Forum: Tech
Topic: Help, transmission not sliding in
Replies: 22
Views: 4031
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Re: Help, transmission not sliding in

I do it like Daman. When rebuilt my B50 Trans I had the cluster in and out many times trying to get it to shift right. I finally in desperation took a shift quadrant out of a sacked B44 gearbox and it has been shifting beautifully never since. I could see no difference in the quadrant assembly but i...
by Mr Mike
Tue Mar 22, 2016 2:03 am
Forum: Tech
Topic: Help, transmission not sliding in
Replies: 22
Views: 4031
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Re: Help, transmission not sliding in

If the chain is on rotate the rear wheel while shifting. If the chain is off, turn the output sprocket as you shift. I always put the chain on, remove the plug and rotate the rear wheel one revolution making sure I get a different ratio of engine revolutions.
Mr Mike
by Mr Mike
Sun Mar 20, 2016 7:06 pm
Forum: Tech
Topic: Help, transmission not sliding in
Replies: 22
Views: 4031
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Re: Help, transmission not sliding in

Just put the shifter fork rod in without installing the cluster. Slide the shifter fork on the rod all the way in to see if it clears the detent spring. If not adjust the detent spring a little to the left and make sure you lock with the special washer and some loctite on the screws. One of the fork...
by Mr Mike
Sun Mar 20, 2016 4:42 pm
Forum: Tech
Topic: Removing Layshaft Bearing from crankcase
Replies: 39
Views: 10068
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Re: Removing Layshaft Bearing from crankcase

I am glad someone got to use the simple carriage bolt tool. The bolt has to only be long enough to extend above the socket. 3 inches or so should be long enough.

Mr Mike
by Mr Mike
Sun Mar 20, 2016 4:26 pm
Forum: Tech
Topic: Help, transmission not sliding in
Replies: 22
Views: 4031
Flag: United States of America

Re: Help, transmission not sliding in

Make sure the detent spring that rides on the edge of the cam plate is aligned such it is not interfering with the nose of the shifter fork. This is easily checked by installing the just shaft that the forks pivot on into the case with the shifter fork on it to see if it clears the edge of the deten...
by Mr Mike
Fri Feb 26, 2016 7:50 pm
Forum: Tech
Topic: b44 + b50mx cam
Replies: 9
Views: 2093
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Re: b44 + b50mx cam

I have always liked the b44. Perfect bike for someone about 165 lbs. I has enough spunk to ride country roads and pass someone at 55mph. I guess guys like Ed V and HP Stan know how to spook the engines up real good.. I am not sure unless you are competing in vintage stuff that it is worth it. It is ...
by Mr Mike
Wed Feb 24, 2016 1:47 am
Forum: Tech
Topic: b44 + b50mx cam
Replies: 9
Views: 2093
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Re: b44 + b50mx cam

My B44 has a 32mm carb, and a dressed up intake port by Ed. 1.5 in exhaust, stock valves and cams. It won't catch my B50 with the same work but would run circles around my old (now gone) stock Victor Special. The improvement is not profound but very noticeable.

Mr Mike
by Mr Mike
Sun Jan 24, 2016 9:46 pm
Forum: Tech
Topic: B44VS - Is my clutch basket bearings shot? (Video)
Replies: 25
Views: 4053
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Re: B44VS - Is my clutch basket bearings shot? (Video)

The stator is not a precision piece. Use washers to shim it out and stick three .008 feeler gauges in to center the statorand then tighten it up to see what it looks like. The wires usually have a set to them which will indicate it can usually only go one way.

Mr Mike
by Mr Mike
Wed Jan 13, 2016 10:40 pm
Forum: Tech
Topic: B44VS - Is my clutch basket bearings shot? (Video)
Replies: 25
Views: 4053
Flag: United States of America

Re: B44VS - Is my clutch basket bearings shot? (Video)

MM,
Thanks, Holy Moly, nearly $1000 clams for a clutch. I'll have to stay with my 6 plate.

Mr Mike
by Mr Mike
Tue Jan 12, 2016 5:02 pm
Forum: Tech
Topic: B44VS - Is my clutch basket bearings shot? (Video)
Replies: 25
Views: 4053
Flag: United States of America

Re: B44VS - Is my clutch basket bearings shot? (Video)

Nodog,
What does Ed's clutch consist of? My six plate on the B50, stock except for 6 plates, is as smooth as butter with no slippage. Ed's done a lot of engine machine work for me and all has been top notch....so I am sure if he's got a clutch it is a gem.
Mr Mike
by Mr Mike
Sat Jan 09, 2016 3:54 pm
Forum: Tech
Topic: B44VS - Is my clutch basket bearings shot? (Video)
Replies: 25
Views: 4053
Flag: United States of America

Re: B44VS - Is my clutch basket bearings shot? (Video)

I had Barnett discs in my b44 and while they did not slip, they stuck together after a week of sitting idle. They stuck so bad that I had on several occasions I had to disassemble the clutch and pry the plates apart with a screwdriver. I couldn't break them loose with the kickstarter. That's when I ...