Search found 1293 matches

by Jeff K
Tue Jul 14, 2020 2:43 pm
Forum: Tech
Topic: Headlight drained the Battery
Replies: 33
Views: 5210
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Re: Headlight drained the Battery

And remember that the rated output of the alternator is at higher RPM's. Low speed around town driving with low rpm and the alternator is putting out lower then rated watts. You can also upgrade to a high output alternator like the 3 phase units or just replace the stator with a 200w unit for more p...
by Jeff K
Sun Jul 12, 2020 9:29 pm
Forum: Tech
Topic: 441 Victor resurection
Replies: 34
Views: 1464
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Re: 441 Victor resurection

Interesting reading the the book "Save the Triumph Bonneville" on just how much influence that Big D had with the factory.
Jeff
by Jeff K
Sun Jul 12, 2020 3:50 pm
Forum: Tech
Topic: 441 Victor resurection
Replies: 34
Views: 1464
Flag: United States of America

Re: 441 Victor resurection

The first time that I had heard that " 95% of all carburetor problems is electrical" was close to 50 years ago. Donny Hawley the long gone mechanic at the also long gone Triumph Dealer, Saginaw Cycle Sales told me that. And all through the years I can not tell you how often that he was still correct...
by Jeff K
Sun Jul 12, 2020 2:54 am
Forum: Tech
Topic: Amal concentric reference list
Replies: 1
Views: 95
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Amal concentric reference list

Did Amal ever publish a reference list of the Concentric like they did for the Monobloc Carburetors. The Monobloc reference list tells what the second number after the Carburetor size was use on what bikes. Like 389/11 would be used on a "Ariel 497cc 1956-58; HS "R" Hunter Scrambles" and what the st...
by Jeff K
Sat Jul 04, 2020 5:04 pm
Forum: Tech
Topic: T 140 tank on B25/T25
Replies: 6
Views: 310
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Re: T 140 tank on B25/T25

" I'm not convinced it's 3 gallons unless it's 3 US gallons as opposed to proper British gallons :grin:" Steve He is in India and I am not sure what system of gallons that they would be referring to. I think he copied the larger European BSA tank, if that is so then the tank would be longer and requ...
by Jeff K
Sat Jul 04, 2020 4:58 pm
Forum: Tech
Topic: T 140 tank on B25/T25
Replies: 6
Views: 310
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Re: T 140 tank on B25/T25

I am old enough to remember the dirt bike days of the 1960's and 70's. There used to be a lot of aftermarket manufacturers of bigger plastic gas tanks to increase your range for Enduro or woods riding. I wonder where they all went?
Jeff
by Jeff K
Sat Jul 04, 2020 3:14 am
Forum: Tech
Topic: T 140 tank on B25/T25
Replies: 6
Views: 310
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Re: T 140 tank on B25/T25

There is seller from India on Ebay, "royalchoppers ", who makes the European 3 gallon tank for the B25 and B50. I have contacted him in the past about making one in alloy and he said no problem. For some reason Ebay has his link locked, Cut and paste "Triumph Tr25 Bsa B25 B50 Black Fuel Tank (3 Gall...
by Jeff K
Fri Jun 19, 2020 6:03 pm
Forum: Tech
Topic: 441 Victor resurection
Replies: 34
Views: 1464
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Re: 441 Victor resurection

If you have compression and spark and you suspect the Carburetor. Here is a old trick. Give it a squirt of WD40 either in the spark plug hole or open the throttle spray down the intake. It will start up, it is easier then starting fluid on the motor and many times once it runs a bit it will clear ou...
by Jeff K
Mon Jun 08, 2020 8:33 pm
Forum: Tech
Topic: B25 1969 starting problems
Replies: 10
Views: 391
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Re: B25 1969 starting problems

The proper voltage is critical with the Boyer. Once it gets too low the unit will go to full advance even at idle or starting it. Like HHH said also a intermittent short or open connection will also result in no spark and then full advance. Check you battery and then start checking all of the wires ...
by Jeff K
Mon Jun 08, 2020 3:46 pm
Forum: Tech
Topic: B25 1969 starting problems
Replies: 10
Views: 391
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Re: B25 1969 starting problems

Voltage is critical to electronic ignitions, low voltage will cause them be in full advance when starting. The Norton 850 MKIII had a nasty habit of dropping the voltage when using it's starter, this would cause the Boyer to go to full advance and kick back hard enough to break the electric starter ...
by Jeff K
Sat Jun 06, 2020 11:28 pm
Forum: Tech
Topic: B44 - Vape Electronic Ignition
Replies: 12
Views: 460
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Re: B44 - Vape Electronic Ignition

Yes, much the same way that a non chrono speedometer works, more rpm = stronger "pull". I have not used a magnet triggered EI in a while. I have been using hall effect or optically triggered ones. I much prefer the later. I have used several of the Power Arc ones and have been very satisfied with th...
by Jeff K
Sat Jun 06, 2020 3:18 pm
Forum: Tech
Topic: B44 - Vape Electronic Ignition
Replies: 12
Views: 460
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Re: B44 - Vape Electronic Ignition

It sounds backwards, but all of the electronic ignitions that I have read and seen do not '"advance" the timing. They timed and set to start out at full advance and then calculate a "Delay" based on the rpm. So when you first turn the ignition on and kick it over. They are design not to fire until t...
by Jeff K
Thu Jun 04, 2020 2:35 pm
Forum: Tech
Topic: valve lifter wear
Replies: 6
Views: 394
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Re: valve lifter wear

I am not sure if the area or the entire arm is heat treated or not. But, be aware that welding on it will change all of that. Best to find out before taking it to a welder.
Jeff
by Jeff K
Sat May 30, 2020 3:53 pm
Forum: Tech
Topic: How many OIF 250's and 500's were made
Replies: 6
Views: 383
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Re: How many OIF 250's and 500's were made

The 250's used to be common around here. Mostly ridden in the woods or combination of woods road. We had a lot of BSA dealers at the time and a few Triumph dealers. I used to be able to picked up a complete 250 for about $50.00. It was a sure thing that the main bearing would be spun and 2nd gear wo...
by Jeff K
Thu May 28, 2020 6:43 pm
Forum: Tech
Topic: How many OIF 250's and 500's were made
Replies: 6
Views: 383
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Re: How many OIF 250's and 500's were made

I was surprised to see that many 250's, considering they were a one year only model. What is amazing is how many are still around after all of these decades.
Jeff
by Jeff K
Thu May 28, 2020 3:23 am
Forum: Tech
Topic: How many OIF 250's and 500's were made
Replies: 6
Views: 383
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How many OIF 250's and 500's were made

How many of the OIF 250's and B50's were produced. I know that the 250 BSA/Triumph were only made for one year and I think they only sold the B50 up until 1972. Then there were the 1973 &1974 500's that were sold as Triumph's. It seems that there are still a lot around considering that they have bee...
by Jeff K
Mon May 18, 2020 7:19 pm
Forum: Tech
Topic: Classic Bike Racks B25 B50 TR5T
Replies: 11
Views: 926
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Re: Classic Bike Racks B25 B50 TR5T

My TR5T rack came in today. Allow double the shipping time with the way this virus has shipping backed up. The fit, finish and Quality of John's work is amazing. If the rain ever stops, I can not wait to bolt it up. I would recommend him and buy from him again! Even though the B50 and the TR5T frame...
by Jeff K
Thu May 14, 2020 2:41 am
Forum: Tech
Topic: Amal vs Wassell carburetor
Replies: 45
Views: 2224
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Re: Amal vs Wassell carburetor

As i said at the top Jeff, i have had no major problems with the Wassell Premier if thats the style of carb you prefer, I have 6 on the shelf. Good luck with your projects, Im a year behind you, still racing flattrack, and like you, have a stack of projects, The next 2 i have just started on are Tr...
by Jeff K
Wed May 13, 2020 8:35 pm
Forum: Tech
Topic: Amal vs Wassell carburetor
Replies: 45
Views: 2224
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Re: Amal vs Wassell carburetor

Ian, I started this thread. I will be 65 in a couple of months and I have been working on bikes since I was old enough to throw a leg over Sears 5hp minibike :thumb . I worked on Japanese motorcycles decades ago and I worked at K*wasak*/S*zuki dealership as a mechanic. I am well versed in Mikuni's. ...
by Jeff K
Wed May 13, 2020 12:28 am
Forum: Tech
Topic: Amal vs Wassell carburetor
Replies: 45
Views: 2224
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Re: Amal vs Wassell carburetor

Mr Mike i have already explained several post above how to fix the Enrichner circuit on a Mikuni! And yet the last 6 posts have chosen to completely ignore it, This site gets more like facebook every day! Folks just leap in with there comments without reading prior feedback! I will spell it out aga...
by Jeff K
Tue May 12, 2020 8:56 pm
Forum: Tech
Topic: 350 and 441 use the same Intake valve
Replies: 4
Views: 285
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Re: 350 and 441 use the same Intake valve

I found this on the Beck/Arnley web site. "Beck/Arnley was established in 1914 as Beck Distributing Corp. in New York City by Irving Beck. Initially a supplier of motorcycle parts, when World War I broke out, Beck landed a contract to supply the US Army with sidecars made in Australia for dispatch r...
by Jeff K
Tue May 12, 2020 7:59 pm
Forum: Tech
Topic: 350 and 441 use the same Intake valve
Replies: 4
Views: 285
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Re: 350 and 441 use the same Intake valve

I thought the stem length was longer on the Square barrel, will check in the garage tomorrow, although I was trying to do it today so no promises. Kommando, you are correct! Feked.com had the specs. Same size and same stem size. But the B44 is a wee bit longer! B44 = 3 9/16" 3.57" 90.8mm B40 = 3 15...
by Jeff K
Mon May 11, 2020 10:14 pm
Forum: Tech
Topic: 350 and 441 use the same Intake valve
Replies: 4
Views: 285
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350 and 441 use the same Intake valve

Interesting, today I am sorting through a pile of NOS Alpha valves and I came across a couple that are identical, except one is stamped V258 and the other is V212. The V212 is a Alpha B40/B44 round head Exhaust valve. The V258 was a mystery. Then I found a couple of V257 "BECK" Valves, these had a o...
by Jeff K
Mon May 11, 2020 1:08 am
Forum: Tech
Topic: 36 Hole Front Hub Options
Replies: 15
Views: 646
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Re: 36 Hole Front Hub Options

There is a Italian company selling alloy rims made in China that are stamped made in Italy. But there is also still a Italian company still making alloy rims. Check this guy, I have bought from him in the past. https://www.ebay.com/itm/361675824685 WM1 1.60 X 21 -40 hole Akront/Italian style flanged...
by Jeff K
Sun May 10, 2020 12:40 pm
Forum: Tech
Topic: Amal vs Wassell carburetor
Replies: 45
Views: 2224
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Re: Amal vs Wassell carburetor

Using a A/F exhaust gage and spark plug color checks. I can get both the Amal And the Mik jetted properly so the bikes run great when they are warmed up. But the Amal will start right up and I can drive off, where the Mik will be hard starting and stumble unless you keep the revs up until the motor ...
by Jeff K
Sat May 09, 2020 9:00 pm
Forum: Tech
Topic: Outer timing cover equivalences
Replies: 10
Views: 670
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Re: Outer timing cover equivalences

The early B25, B40 and I think the early round head B44 had the smaller kick starter shaft.
Jeff
by Jeff K
Sat May 09, 2020 6:51 pm
Forum: Tech
Topic: Amal vs Wassell carburetor
Replies: 45
Views: 2224
Flag: United States of America

Re: Amal vs Wassell carburetor

I have had a lot of Motorcycles, mostly British. I live in Michigan, weather is the stuff stories are made of. It snowed her yesterday, and last week it was in the 70's, so I need a bike that starts and runs well in all temperatures and weather. I have never had a properly tuned and sorted out Briti...
by Jeff K
Fri May 08, 2020 4:36 pm
Forum: Parts for sale
Topic: B25R ?
Replies: 10
Views: 1468
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Re: B25R ?

Any photos?
Jeff
by Jeff K
Thu May 07, 2020 7:48 pm
Forum: Tech
Topic: oil volume
Replies: 13
Views: 1338
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Re: oil volume

The temp going back to the tank is useful but not the whole story. http://www.nortons.dk/doc/lubricants.pdf In summary if you have a hot spot in an engine such as next to the exhaust valve then oil that passes through this can be degraded quickly and it never recovers. This may be only a small amou...
by Jeff K
Tue May 05, 2020 7:09 pm
Forum: Tech
Topic: B50 rotor nut.
Replies: 9
Views: 1383
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Re: B50 rotor nut.

I wonder when the two threads where made? one early and one late? With the BSA factory shut down and the last few B50 being rebadged and sold as Triumph's, I could see them running out of parts and having some "out sourced"
Jeff
by Jeff K
Mon May 04, 2020 11:30 pm
Forum: Tech
Topic: Amal vs Wassell carburetor
Replies: 45
Views: 2224
Flag: United States of America

Re: Amal vs Wassell carburetor

Hi Beat I have been using a very old analog A/F meter for years(decades). It is a bigger unit was design for use on cars and trucks. Large fast response scale, long leads to connect to the battery and a unit the slides into the exhaust and is connected to the meter with a long lead. Simple to use. C...
by Jeff K
Sun May 03, 2020 11:22 pm
Forum: Tech
Topic: B50 rotor nut.
Replies: 9
Views: 1383
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Re: B50 rotor nut.

I have used a Norton rotor Nut on a B40 Crank. It was a NOS later B40 Crank the I got from Peter Quick. I tossed the 1961 6v rotor and stator and upgraded to a 1970 B25 12v rotor and stator. The later stator was thicker and the B40 nut seemed too short. The Norton nut was a little long so I turned i...
by Jeff K
Sun May 03, 2020 11:15 pm
Forum: Tech
Topic: Hub Powdercoat???s
Replies: 14
Views: 936
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Re: Hub Powdercoat???s

minetymenace wrote:
Sun May 03, 2020 4:34 pm
BSA!!
They still have something open and in business?
Jeff
by Jeff K
Sun May 03, 2020 8:09 pm
Forum: Tech
Topic: Amal vs Wassell carburetor
Replies: 45
Views: 2224
Flag: United States of America

Re: Amal vs Wassell carburetor

I also noted it was not just the hard starting with the Mikuni, it was also cold blooded. With the old Amal tickle until gas dripped out, one kick even when cold and up and running and you are ready to drive off. With the Mikuni, it was kick, kick kick repeat, and repeat. If it was a cold morning, y...
by Jeff K
Sun May 03, 2020 7:56 pm
Forum: Off topic
Topic: Any part of the old BSA Company still around?
Replies: 3
Views: 671
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Any part of the old BSA Company still around?

BSA not only at one time was the largest producers of Motorcycles. But had many small companies as part of it. Machine tools, etc, I have a few taps with BSA on them. The only thing that I have seen new with BSA on was a few made in Chine scopes for rifles a few years back. Does any part of the BSA ...
by Jeff K
Sat May 02, 2020 9:12 pm
Forum: Tech
Topic: Hub Powdercoat???s
Replies: 14
Views: 936
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Re: Hub Powdercoat???s

Check a local gun shop that also does blueing. You want a shop that works on guns and not just one that sells them.
Jeff
by Jeff K
Sat May 02, 2020 12:57 pm
Forum: Tech
Topic: B50MX cam in a B25 and Big bore ideas.
Replies: 10
Views: 787
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Re: B50MX cam in a B25 and Big bore ideas.

Call Ed at E&V engineering, 318cc piston in stock.
https://shop.shopevengineering.com/Pist ... ogId=-2087
Jeff
by Jeff K
Fri May 01, 2020 2:39 pm
Forum: Tech
Topic: Amal vs Wassell carburetor
Replies: 45
Views: 2224
Flag: United States of America

Re: Amal vs Wassell carburetor

I put a 32 mm Mikuni on my B44 with the intake ported to match. Once warm the carb was a dream.. It would idle like a tractor and no flatspots or stutter through out the range to WOT. The problem was cold starts. The enricher circuit would not do it. It took 20-30 kicks to start the mother. Once wa...
by Jeff K
Fri May 01, 2020 2:00 pm
Forum: Tech
Topic: B25 piston
Replies: 15
Views: 981
Flag: United States of America

Re: B25 piston

Great chart of the piston designs! It clearly shows the BSA has a thicker dome area and thinner walls then the AE piston. Back when I used to do a lot to 250 work. I would always order the rod bearing set for the Triumph 500 twin. They are the same as the BSA 250 , but for a few dollars more you wou...
by Jeff K
Fri May 01, 2020 1:32 am
Forum: Tech
Topic: oil volume
Replies: 13
Views: 1338
Flag: United States of America

Re: oil volume

Be careful that you also do not lose some cooling capacity . Less oil and smaller tank = less fluid to help cool the engine and less surface area. Trials bikes tend to go slow so they do not have the benefit of speed induced airflow across the engine.
Jeff