Search found 1149 matches

by Jeff K
Sun Sep 22, 2019 8:52 pm
Forum: Tech
Topic: Big Tank TR5T?
Replies: 4
Views: 140
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Re: Big Tank TR5T?

How hard is it to find the BSA 83-4320 3 gallon gas tank.
Jeff
by Jeff K
Fri Sep 20, 2019 4:09 am
Forum: Tech
Topic: Big Tank TR5T?
Replies: 4
Views: 140
Flag: United States of America

Big Tank TR5T?

I Just swapped all of my pre 1971 250s (5)for a 1974 TR5T, do not worry, I kept all of my 1971 250's (4). Did they ever make a bigger gas tank for the TR5T like they did for the home version of the OIF 250's?
Jeff
by Jeff K
Tue Sep 17, 2019 11:26 pm
Forum: Tech
Topic: MonoBloc 389B30 ID.
Replies: 4
Views: 95
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Re: MonoBloc 389B30 ID.

Interesting, I have always heard that the Monobloc was a better carburetor then the Concentric. I have had good luck with both. so it would be hard for me to say which is better. I wonder how one of these Spanish 2 cycle ones would work is set up for a 4 cycle engine.
Jeff
by Jeff K
Tue Sep 17, 2019 8:32 pm
Forum: Tech
Topic: MonoBloc 389B30 ID.
Replies: 4
Views: 95
Flag: United States of America

Re: MonoBloc 389B30 ID.

Now that I am on the right track, I found out that these were made for Spanish 2 cycle motorcycles. I still wonder why the construction difference.
Jeff
by Jeff K
Tue Sep 17, 2019 7:50 pm
Forum: Tech
Topic: MonoBloc 389B30 ID.
Replies: 4
Views: 95
Flag: United States of America

Re: MonoBloc 389B30 ID.

I was just looking at the three Amal 389b30 carburetors again. I noticed that one had the float bowl cover on. These are the Spanish made copies. And then I noticed that looking down from the top. they are different then the English Monoblocs. Where the slide goes in, there is nothing inside there l...
by Jeff K
Tue Sep 17, 2019 3:13 am
Forum: Tech
Topic: MonoBloc 389B30 ID.
Replies: 4
Views: 95
Flag: United States of America

MonoBloc 389B30 ID.

I finally am getting some time to start sorting through the piles of old parts and I am trying to organize and sort them. Tonight was the Monobloc Carburetor shelf. I have the print out of what the they fit using the numbers that are stamped on the flange. Interestingly I found a couple that did not...
by Jeff K
Sat Sep 14, 2019 3:05 pm
Forum: Tech
Topic: Dating a B50SS
Replies: 14
Views: 355
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Re: Dating a B50SS

Be aware that some states titled them when they were sold and the paper work was processed. So a 1971 model year that was sold in 1970 could have 1970 on the title and a 1971 model year that was sold in 1972 could have 1972 on the title. The Frame number will reflect the actual build date.
Jeff
by Jeff K
Tue Sep 03, 2019 1:51 pm
Forum: Tech
Topic: Lithium-ion battery pack
Replies: 6
Views: 354
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Re: Lithium-ion battery pack

Interesting, but what would be the best combination to run a "total loss" system with Boyer or similar ignition? Is 11.1 volts sufficient or would 14.8 be better and would 14.8 volts harm any of the components? I also note that the charger is only rated to charge up to 13.2 volts, so would it just ...
by Jeff K
Tue Sep 03, 2019 1:46 pm
Forum: Tech
Topic: Lithium-ion battery pack
Replies: 6
Views: 354
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Re: Lithium-ion battery pack

We tried going with the LI-ON battery on the last Norton Project. After sending the 2nd one back and several lengthy conversations with the company. We found out that they require a special charging/regulating set up and the neither the stock Lucas or the Podronics were a good fit for this. For a to...
by Jeff K
Sat Aug 31, 2019 4:10 pm
Forum: Tech
Topic: B25T Rear Chain Oiler – Cap Off?
Replies: 17
Views: 875
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Re: B25T Rear Chain Oiler – Cap Off?

From what I have seen over the years only the Triumph 250 left the factory with a vented cap and these leak a small but annoying amount of oil. I have blocked off every chain oiler as they are impossible to tune to get the right amount of oil on the chain, a good aerosol of chain lube is easier and...
by Jeff K
Sat Aug 03, 2019 4:52 am
Forum: Tech
Topic: ongoing problem/headlight wire
Replies: 20
Views: 1129
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Re: ongoing problem/headlight wire

Is it always the same side? Do the bolts line up or do you have to force them to fit. From the picture it looks like the broken sections are not lining up. Chrome plating and rust can induce stress cracks in metal that is under stress or misaligned.
Jeff
by Jeff K
Mon Jul 22, 2019 4:35 am
Forum: Tech
Topic: Getting out the little bearing of the layshaft
Replies: 9
Views: 1205
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Re: Getting out the little bearing of the layshaft

I have used the same method only using grease before and I have heated up the case with a propane torch until the bearing fell out with a couple of light taps on the back side.
Jeff
by Jeff K
Wed Jul 17, 2019 2:43 pm
Forum: Tech
Topic: Misfiring while driving. Starts and idles Okay
Replies: 14
Views: 871
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Re: Misfiring while driving. Starts and idles Okay

When I was a kid and I had a Small engine repair class in high school. The instructor said the best way to test the ignition system was by using his "jumping plug test". He would explain how electricity was like water and it had to flow to work, and if it did not it would work. So he would take a ol...
by Jeff K
Wed Jul 17, 2019 2:34 pm
Forum: Tech
Topic: Misfiring while driving. Starts and idles Okay
Replies: 14
Views: 871
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Re: Misfiring while driving. Starts and idles Okay

We had a very hard starting issue with the B40 Cafe project. It had a 1970 B25 rotor and stator with a Podronics unit, So plenty of juice. Kick, kick kick sometimes it would fire. Bump start it and before the wheel did one revolution it was running. After lots of head scratching, I found out that th...
by Jeff K
Tue Jul 16, 2019 1:45 pm
Forum: Tech
Topic: Alpha valve number V258 ?
Replies: 3
Views: 361
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Re: Alpha valve number V258 ?

I have 6 of their NOS V266 Valves, the old labels on them from the long gone Milne Brothers Distributing Co. have them as B25 Intake Valve. I also have about 15 of the V255 That are labeled B25 Exhaust. The V255 Have the a round grove in the valve stem for the keepers and the V266 use the large squa...
by Jeff K
Tue Jul 16, 2019 1:37 pm
Forum: Tech
Topic: Alpha valve number V258 ?
Replies: 3
Views: 361
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Re: Alpha valve number V258 ?

Alpha is still in business, I think. I got a response from them on the Email that I sent them asking about a V258 valve that I have. "Sir There's one on ebay described as 'vintage BSA'" LOL! looks like they do not have any old catalogs, old documents or any thing else there. I had already done web a...
by Jeff K
Sun Jul 14, 2019 3:18 am
Forum: Tech
Topic: Misfiring while driving. Starts and idles Okay
Replies: 14
Views: 871
Flag: United States of America

Re: Misfiring while driving. Starts and idles Okay

Decades ago there was a old Mechanic named Donnie Hawley at the local Triumph Shop, Saginaw Triumph here in Michigan. He had decades of working on Brit bikes and used to say " 90% of Carburetor Problems are electrical". He passed almost 20 years ago and I still find that bit of wisdom to be correct....
by Jeff K
Sat Jul 13, 2019 4:35 pm
Forum: Tech
Topic: Alpha valve number V258 ?
Replies: 3
Views: 361
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Re: Alpha valve number V258 ?

I sent a email to Alpha, I think they are still in business. We will see if that turns up anything. I have used their products for decades and I am finally seeing the bottom of the pile valves etc that I bought decades ago.
Jeff
by Jeff K
Sat Jul 13, 2019 3:14 am
Forum: Tech
Topic: Misfiring while driving. Starts and idles Okay
Replies: 14
Views: 871
Flag: United States of America

Re: Misfiring while driving. Starts and idles Okay

What did the spark plug look like? was it wet or black, was it tan or was it white? It sounds like timing to me. Does it still kick over Ok or is it kicking back?
Jeff
by Jeff K
Sat Jul 13, 2019 1:53 am
Forum: Tech
Topic: Alpha valve number V258 ?
Replies: 3
Views: 361
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Alpha valve number V258 ?

After a very rough start this year, I lost both my dad and my uncle just days apart. I am finally start to sort through decades of parts. I have the current Alpha Valve list. But I found a NOS number V258 on the shelf and they do not have it listed. Anyone know what it goes to?
Jeff
by Jeff K
Sat Jul 06, 2019 10:51 pm
Forum: Tech
Topic: Push rod shimming
Replies: 7
Views: 1037
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Re: Push rod shimming

From my notes form the BSA Unit Single site. 41-0028 B40 7 11/16" 41-0592 B44 Round Jug 8 1/4" 41-0590 B44 Round GP 8" 1966-67 sand cast barrel 41-0790 B44 Square jug 8 3/8" 40-0100 C15 7 5/16" 40-1021 B25 Ex 6 7/8' aka 70-8053 40-1010 B25 IN 6 15/16" aka 70-8055 71-1620 B50 8 19/32" Jeff
by Jeff K
Sat Jul 06, 2019 4:16 pm
Forum: Tech
Topic: Push rod shimming
Replies: 7
Views: 1037
Flag: United States of America

Re: Push rod shimming

I think the B40/B44 had at least three different pushrod lengths. It has been a while since the B40 project, but Peter Quick was very helpful back then.
Jeff
by Jeff K
Mon Jun 10, 2019 3:13 pm
Forum: Parts for sale
Topic: Frames - now the the UK price of scrap has risen again
Replies: 34
Views: 9077
Flag: United States of America

Re: Frames - now the the UK price of scrap has risen again

This is a sad but true fact. I have seen where people will chop up good bikes to sell the parts on Ebay. At the end of the day, it is normal for the frame to be left over. Some States like where I live here in Michigan make it very difficult if you do not have a title for the bike/frame. I myself am...
by Jeff K
Thu May 30, 2019 8:30 pm
Forum: Tech
Topic: B44 Alternator Repair
Replies: 7
Views: 1096
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Re: B44 Alternator Repair

Not in the bucket! Magnets are useful around the shop, stick it on the drill press to hold the chuck key or something.... but yes, buy another, there's one on ebay for £9 and rotor + stator for £50....or new for about £73 (feked.com and elsewhere) Used alternators are cheap on Ebay, And if you need...
by Jeff K
Mon May 20, 2019 2:03 pm
Forum: Tech
Topic: c15c - B44 type frame
Replies: 19
Views: 2085
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Re: c15c - B44 type frame

Interesting how the Title, a legal document can be so wrong. Here in Michigan the Secretary of State's office is in charge of titles and registrations. Sadly they do not have a clue on the older bikes. They still demand a 17 digit VIN number on a machine that my have only had a couple of thousands m...
by Jeff K
Mon May 20, 2019 3:08 am
Forum: Tech
Topic: c15c - B44 type frame
Replies: 19
Views: 2085
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Re: c15c - B44 type frame

Hello Gordon I am behind on a lot of things since my dad passed 9 days ago, still trying to get stuff with mom settled. I am planing on thinning out all pre 1971 250 stuff and the B40 with all of the stuff that goes with it. Too many projects, too little time. <218 I will get back to you once we get...
by Jeff K
Thu May 16, 2019 4:50 pm
Forum: Tech
Topic: c15c - B44 type frame
Replies: 19
Views: 2085
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Re: c15c - B44 type frame

<135 to the forum Leif, glad to see you are a "Lurker turned Poster", don't forget to log your bike in the Owner's database (you too Jeff). My plans are this weekend to start getting caught up on motorcycle paper work. I hope to then list Bikes, frames and engines after this and I will update the d...
by Jeff K
Thu May 16, 2019 3:32 pm
Forum: Tech
Topic: c15c - B44 type frame
Replies: 19
Views: 2085
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Re: c15c - B44 type frame

I don't have a 100% certain answer for you on the 63 C frame but I can share my info with you. I believe the 63 C frame was a mid-year 63 change for BSA, at least in the US. Possibly the 63 year started in England with them but they didn't start showing up in US until April or so, from what I can g...
by Jeff K
Wed May 08, 2019 12:05 pm
Forum: Tech
Topic: c15c - B44 type frame
Replies: 19
Views: 2085
Flag: United States of America

Re: c15c - B44 type frame

I also have a few B25 frames and a 1971 OIF 250 frame that I plan on getting rid of. time to thin down the inventory.
Jeff
by Jeff K
Tue May 07, 2019 2:48 am
Forum: Tech
Topic: c15c - B44 type frame
Replies: 19
Views: 2085
Flag: United States of America

Re: c15c - B44 type frame

I did a BSA C15C frame web search and found this: https://www.britbike.com/bsapitstop/dating/post1960.html and this: https://www.bonhams.com/auctions/24877/lot/415 BritBike.com 1963 Model Engne prefix Engine sequence Frame prefix Frame sequence CC C15 SCRAMBLES C15S 4001 C15C 101 250 C15 STAR AMERIC...
by Jeff K
Tue May 07, 2019 2:35 am
Forum: Tech
Topic: c15c - B44 type frame
Replies: 19
Views: 2085
Flag: United States of America

Re: c15c - B44 type frame

I have a 1963 B40 that I picked up years ago with a C stamped on the crank cases and a HC there also. The HC is for high compression -think 8.75 to 1 and I was told the C was for Competition. It is sitting in a C15C frame, number 102. I was told that they started numbering them at 100, so this found...
by Jeff K
Wed May 01, 2019 4:50 am
Forum: Tech
Topic: Kick-start aid
Replies: 8
Views: 1287
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Re: Kick-start aid

Power Arc EI is one of the very few that will work down to 6v. It is the only EI the Fred at old Brits will use on a 850 MKIII. Kick back on a electric starter bike can get very expensive real fast. A kick back can destroy the starter spraque .
Jeff
by Jeff K
Mon Apr 29, 2019 2:58 pm
Forum: Tech
Topic: Kick-start aid
Replies: 8
Views: 1287
Flag: United States of America

Re: Kick-start aid

"to provide up to 160 onboard start assists ' -- --- Assists, sounds like my Norton 850 MKIII Electric Start. I bought it new and the owners manual and the dealer both called it a Electric assist. If it stalled at a traffic light and was all warmed up, it might start the bike by itself. But normally...
by Jeff K
Fri Apr 26, 2019 9:56 pm
Forum: Tech
Topic: Head Gasket Fitting - tips and tricks.
Replies: 6
Views: 1065
Flag: United States of America

Re: Head Gasket Fitting - tips and tricks.

B40 requires a .048 gasket. The B44 can range from .036" to .048" . I had many sets and ALL of them measured under .048" for the B44. I had Ed V. and Peter Quick check their inventories and a couple of other suppliers. Ed and the others were all too thin, most on the .036" range. Most of what Peter ...
by Jeff K
Fri Apr 26, 2019 12:42 pm
Forum: Tech
Topic: Head Gasket Fitting - tips and tricks.
Replies: 6
Views: 1065
Flag: United States of America

Re: Head Gasket Fitting - tips and tricks.

What bike are you working on? There are a few different thicknesses for the B44 available. The B44 copper gasket is many time sold as fitting the B40. But this is not correct. The B40 copper head gasket is thicker and the valves could hit the piston if you use the thinner B44 gasket.
Jeff
by Jeff K
Tue Apr 23, 2019 7:56 pm
Forum: Tech
Topic: 1000-Series 2/4-stroke Concentrics
Replies: 85
Views: 7027
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Re: 1000-Series 2/4-stroke Concentrics

I mostly use mine when setting up a bike after a rebuild. Last time it came in handy was a few years back on a 850 Norton build. Owner wanted a single Mikuni instead of the twin Amals. What a pain to get jetted right. All of the charts or recommendations were incorrect. And many of those old charts ...
by Jeff K
Tue Apr 23, 2019 1:55 pm
Forum: Tech
Topic: 1000-Series 2/4-stroke Concentrics
Replies: 85
Views: 7027
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Re: 1000-Series 2/4-stroke Concentrics

We are showing our age now, I also have a color tune. I bought it many years ago and it is still in the original box. Like a flow bench or a exhaust gas meter they are great tools if you know how to read and used them properly. The interesting point is that all of these tools show actual results. I ...
by Jeff K
Tue Apr 23, 2019 3:59 am
Forum: Tech
Topic: 1000-Series 2/4-stroke Concentrics
Replies: 85
Views: 7027
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Re: 1000-Series 2/4-stroke Concentrics

Decades ago I purchased a large hand held analog exhaust gas meter. Large dial, long leads that go to the battery and a long lead that goes to the sensor. The probe slides into the exhaust pipe and the meter reads the fuel mixture. Simple and very effective. This unit came out in the early start of ...
by Jeff K
Tue Apr 16, 2019 9:48 pm
Forum: Tech
Topic: Bsa b40g engine tuning
Replies: 19
Views: 2219
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Re: Bsa b40g engine tuning

Here are some older posts on this.
viewtopic.php?t=6361
Jeff
by Jeff K
Tue Apr 16, 2019 5:50 pm
Forum: Tech
Topic: Bsa b40g engine tuning
Replies: 19
Views: 2219
Flag: United States of America

Re: Bsa b40g engine tuning

I have heard of people cutting down a Aluminum B44 cylinder, rebalancing the crank and using the later B44 square head before, carburetor mounting changes sides. Some were even known to trim the fins to look like the round head. The later B40 crank is the best of the B40 for bearings. Get the R. Rat...