Search found 278 matches

by eebtr7
Tue Jun 22, 2021 1:17 pm
Forum: Tech
Topic: Carburettor choice for b50
Replies: 40
Views: 1511

Re: Carburettor choice for b50

To borrow an expression from the 'good 'ol Hot Rod Days', Run What Ya Brung! The antiquated AMAL Concentric Mk 1 in either 30mm or 32mm will do just fine. However, do take the extra 20 minutes to learn the benefits of screwing the idle mixture screw out about 3/4's of a turn instead of 1 1/2 turns. ...
by eebtr7
Wed Jun 09, 2021 11:16 pm
Forum: Tech
Topic: B25 mikuni
Replies: 13
Views: 1286

Re: B25 mikuni

Yes, first you have to change the head to a H*nda 250. Then, change the barrel to a H*nda 250, along with the entire lower end of the engine to a H*nda 250. Since the shift lever is now on the wrong side, you have to change the frame and all the sheet metal and plastic to, you guessed it, a H*nda 25...
by eebtr7
Sun Jun 06, 2021 1:04 am
Forum: Tech
Topic: B50mx Second Start Up Running Better but??"s
Replies: 19
Views: 3965

Re: B50mx Second Start Up Running Better but??"s

Ha! Ha! Yes, this happened to me, too. And, it got more expensive to fix than I had planned. So, there I was, firing up the beast after too long a spell of inactivity. Up on the center stand and VROOM! Slip the skid lid on the punkin head, drop the bike on to the driveway, pull in the clutch...and.....
by eebtr7
Thu Jun 03, 2021 1:41 pm
Forum: Tech
Topic: Sump - Confession Time
Replies: 7
Views: 758

Re: Sump - Confession Time

Naaah...simple is as simple does. Just grab your old rusty bolt cutter and slice of about 1/8" from the suck-up tube. Then squeeze it back roundish with your broken pliers. Or, for the higher tech folks out there, grind off the tube at some ill defined angle with a worn out hand file then wash out t...
by eebtr7
Fri May 07, 2021 10:49 pm
Forum: Tech
Topic: B50T aftermarket exhaust fitment
Replies: 16
Views: 2341

Re: B50T aftermarket exhaust fitment

I do beg your pardon...Are you referring to my suggestion?

If so, 1 3/8" outside diameter is required to fit inside the 1 1/2" outside diameter pipe on the 441 muffler. The pipe reduction is for about a mere two inches.
by eebtr7
Thu May 06, 2021 1:40 pm
Forum: Tech
Topic: B50T aftermarket exhaust fitment
Replies: 16
Views: 2341

Re: B50T aftermarket exhaust fitment

The answer to this burning question was resolved for me by... 1. Get thyself a 441 Victor Special muffler from the late 1960's, mine is from a 1968 model; 2. Get thyself an straight exhaust reducer from the local auto parts store emporium that is 1 1/2" on the inside and 1 3/8" on the outside of the...
by eebtr7
Wed Apr 28, 2021 5:39 am
Forum: Tech
Topic: Oil line not connected
Replies: 9
Views: 1768

Re: Oil line not connected

It 'tweren't' plugged by the factory. It was plugged by whomever installed that oil line from the ex-oil pressure fitting used on the B25. And, is that the plastic hose from a refrigerator ice maker? I'll bet a dollar to a donut it is! Now, bearing in mind the plastic in that hose is low grade el-ch...
by eebtr7
Sat Apr 17, 2021 2:06 pm
Forum: Tech
Topic: Ariel Square 4 had same problem with oil as B25 (Non Detergent oil)
Replies: 45
Views: 6753

Re: Ariel Square 4 had same problem with oil as B25 (Non Detergent oil)

Aww Gee, Jeff! I thought I was the greasy haired, smart mouth punk around here. Now you at 66 years have gone & replaced me! On to business, I would be interested in knowing if the sludge plug in a B50 can be removed thru the oil drain plate on the bottom of the engine. I am in no mood to split the ...
by eebtr7
Fri Apr 16, 2021 1:26 pm
Forum: Tech
Topic: Ariel Square 4 had same problem with oil as B25 (Non Detergent oil)
Replies: 45
Views: 6753

Re: Ariel Square 4 had same problem with oil as B25 (Non Detergent oil)

Well...If we can't have a raging, petulant, and messy oil fight here, where can we? And another thing, since when were we supposed to have an intellect? That would just make us all H*nda CB350 people! No, we are the Iron Men of BSA. We have no intellect, just tools and the know how to use them.
by eebtr7
Tue Apr 13, 2021 1:48 pm
Forum: Tech
Topic: Gas tank liners
Replies: 27
Views: 3859

Re: Gas tank liners

Whoa...WHOA...!!!WHOA!!! ?Just a motorcycle??? This 'just AIN'T any ol' motorcycle'! These are mechanical, living beings, entities, creatures with souls that date back to the millennia. Our unit singles are the last of a breed of noble devices for propelling we mere mortals oer the hills and faraway...
by eebtr7
Mon Apr 12, 2021 3:30 pm
Forum: Tech
Topic: Gas tank liners
Replies: 27
Views: 3859

Re: Gas tank liners

Instead of squandering your school teacher salary on various chemical concoctions, you can turn left on the Roland St exit on IH10 in San Antonio. Chug on over and down the hill to the Rigsby Ave intersection. There, just past the light on the right is Bob's BBQ. Park your Gold Star in the shade of ...
by eebtr7
Sun Apr 11, 2021 2:05 pm
Forum: Tech
Topic: Gas tank liners
Replies: 27
Views: 3859

Re: Gas tank liners

How about loading your tank up with 3 gallons of 100 octane leaded ethyl gasoline and with the lyrics of Christopher Cross 1979 song in your head, head out across half the continent... 'It is the night my body's weak I'm on the run no time to sleep I've got to ride ride like the wind to be free agai...
by eebtr7
Sat Apr 10, 2021 6:17 pm
Forum: Tech
Topic: Gas tank liners
Replies: 27
Views: 3859

Re: Gas tank liners

Ummmm, this doesn't look like the rust down here in South Texas. Am I missing something? Our Lone Star State rust is all orangey-reddish and crusty/flaky. (And, it tastes good, too! Well, actually it doesn't, but I couldn't resist the temptation to throw the wisecrack into the conversation.) Have yo...
by eebtr7
Fri Apr 09, 2021 7:12 pm
Forum: Tech
Topic: 71 BSA B25 Gold Star SS Centre Stand
Replies: 6
Views: 1843

Re: 71 BSA B25 Gold Star SS Centre Stand

Actually not strange, just cheap. The tang is in the same place as on the twin cylinder models, just hacked off closer to the bone, so to speak.
by eebtr7
Fri Apr 09, 2021 2:23 am
Forum: Tech
Topic: 71 BSA B25 Gold Star SS Centre Stand
Replies: 6
Views: 1843

Re: 71 BSA B25 Gold Star SS Centre Stand

Provided you're not offended by the prospect of some serious scrounging...here's my tale of woe. Once apon a time, whilst performing my assigned vocational duties, I came across in the backyard of an empty house a bent center stand. I immediately recognized it from an OIF twin cylinder, early 1970's...
by eebtr7
Thu Apr 08, 2021 3:05 am
Forum: Tech
Topic: Gas tank liners
Replies: 27
Views: 3859

Re: Gas tank liners

Given the tank is not leaking, the old tried & true rinsing with loose nuts & bolts has been done in the past. Then after a thorough rinsing, applying a tank liner can be done. I did this on a 1970 Triumph 500cc twin in 1982, then sold the machine a few years later before the tank liner deteriorated...
by eebtr7
Mon Apr 05, 2021 5:00 pm
Forum: Tech
Topic: B50 Amal carb newbie
Replies: 44
Views: 8086

Re: B50 Amal carb newbie

Yes, my point then and now is to tinker with the mixture & idle speed screws to get the strongest, steadiest idle possible, given the age and wear in the carburetor. I am pleased you have come this far down the path of the mystical AMAL. If you'll read the factory service manual and the owners manua...
by eebtr7
Mon Apr 05, 2021 2:36 pm
Forum: Tech
Topic: B50 Amal carb newbie
Replies: 44
Views: 8086

Re: B50 Amal carb newbie

Welcome to the Wide Wonderful World of Severe & near Terminal Tinkeritis. No mask or social distancing will prevent your imminent demise. The only known cure to this addiction is strong drink and a screwdriver in your back pocket. Now, please do not be stubborn like your wife says you are. Reset the...
by eebtr7
Fri Apr 02, 2021 10:49 pm
Forum: Tech
Topic: B50 Amal carb newbie
Replies: 44
Views: 8086

Re: B50 Amal carb newbie

Uhhhh...tell ya' what, given the admitted lack of technical savvy on Steve's part, perhaps he would be better off with his guitar string than risk rooting out fragile, soft AMAL metal. Try this instead. First, I suspect there may be no obstructions in the pilot circuit. Second, Poking the guitar str...
by eebtr7
Thu Apr 01, 2021 5:09 pm
Forum: Tech
Topic: B50 Amal carb newbie
Replies: 44
Views: 8086

Re: B50 Amal carb newbie

Well, boys, our Steve appears to be suffering a morale hazard about now, which is typical. I wonder if he realizes just what he actually has? Does he know the BSA B50 is most likely the single most easy to fix and tinker with motorcycle ever to come out of England? Has he read and studied it's histo...
by eebtr7
Thu Apr 01, 2021 2:10 pm
Forum: Tech
Topic: B50 Amal carb newbie
Replies: 44
Views: 8086

Re: B50 Amal carb newbie

3/4's of a turn, that's good. Yes, go ahead and poke around the mixture orifice with a thin wire to verify it is clear. Reset the mixture screw at the 3/4's setting. Start the engine up and fiddle a bit in either direction to get the strongest steady idle at your preferred idle speed. Then... We go ...
by eebtr7
Thu Apr 01, 2021 3:33 am
Forum: Tech
Topic: B50 Amal carb newbie
Replies: 44
Views: 8086

Re: B50 Amal carb newbie

Well...and that's a deep wet hole in the ground, the idle speed is much better. However, the more or less frequent sort of coughing is due to a lean mixture. Please try this. Just for fun, with the engine off, screw the mixture screw all the way in counting the number of turns it takes to bottom out...
by eebtr7
Tue Mar 30, 2021 6:07 pm
Forum: Tech
Topic: B50 Amal carb newbie
Replies: 44
Views: 8086

Re: B50 Amal carb newbie

I do most humbly beg your forgiveness. Allow me to correct my faux-pas...'Set your Dixie-fied Yankee buttocks on a three legged milk stool with a screwdriver in hand'. Etc., Etc., Etc.
by eebtr7
Tue Mar 30, 2021 1:30 pm
Forum: Tech
Topic: B50 Amal carb newbie
Replies: 44
Views: 8086

Re: B50 Amal carb newbie

Please, Oh, please...please, Please, PLEASE!!!! Set your Dixie buttocks on a three legged milk stool with a screwdriver in hand. With the engine 'idling' at it's current rate, screw the mixture screw all the way in, then immediately unscrew it out about 3/4's of a turn. Next, unscrew the idle speed ...
by eebtr7
Mon Mar 29, 2021 2:09 pm
Forum: Tech
Topic: B50 Amal carb newbie
Replies: 44
Views: 8086

Re: B50 Amal carb newbie

Steve...here's the story. But first, some background history. Way back when Hector was a pup and Christ was a PFC, say about 1971, on buying my fresh out of the box 1971 BSA Gold Star 250, I was instructed by the local San Antonio dealer, Pierce Bros BSA, the correct 'set-up' adjustment was 3 1/2 tu...
by eebtr7
Wed Mar 17, 2021 1:46 pm
Forum: Tech
Topic: What length turn signals?
Replies: 8
Views: 2504

Re: What length turn signals?

Time for the Ol' Geezers to set you whipper snappers right. ORIGINALLY, the indicator stalks were about 3", front & rear. Only the 1971 stock mufflers had the straight exit pipe which sooted up the right indicator. For 1972, the exit pipe was bent to the side and slightly down to avoid the indicator...
by eebtr7
Mon Mar 15, 2021 10:33 pm
Forum: Tech
Topic: 1965 C15 Star, New Member
Replies: 4
Views: 2252

Re: 1965 C15 Star, New Member

I really like this color blue! Had my first 1971 B25 been this color instead of the quick to fade red, I would have kept it. It seems very similar to the Pactra Blue I painted my powered model airplane when I was 15 years old. Hmmmm, blue with the black tank stripes...Yep!, that would have been A-Ok...
by eebtr7
Sat Mar 13, 2021 2:35 am
Forum: Project bikes
Topic: I'd like to ride this some day
Replies: 20
Views: 5491

Re: I'd like to ride this some day

Your fixation on frame mounts for the turn indicators is misplaced. The turn indicators were mounted on the B50SS & B50T for the front on the wire headlight support while the rear indicators were mounted on the tail light assembly. The MX models lacked both these features. I respectfully suggest you...
by eebtr7
Thu Mar 11, 2021 10:41 pm
Forum: Project bikes
Topic: LOBE 2 20-21
Replies: 260
Views: 55388

Re: LOBE 2 20-21

Geez, Louise! These are the mounts BSA !!!!SHOULD!!!! have installed back in 1971 with the new frames on the A & B series. Talk about your 'floating' power, this would have shut-up the whiners on all the road tests in magazines like Cycle, Cycle World, Cycle Guide, Motorcycle, and the rest of the us...
by eebtr7
Sat Mar 06, 2021 2:26 pm
Forum: Tech
Topic: B50mx Second Start Up Running Better but??"s
Replies: 19
Views: 3965

Re: B50mx Second Start Up Running Better but??"s

Hard to tell...but...the mixture MAY be set too lean. I have never had the header get that color. On an AMAL mk1, I set the mixture screw about 3/4's turn out from seated. A bit of fuel tends to keep the things a tad cooler without welding everything together. My engine will set there on idle waitin...
by eebtr7
Fri Feb 19, 2021 2:59 pm
Forum: Tech
Topic: Manual advance retard
Replies: 8
Views: 3176

Re: Manual advance retard

Now...I ain't a gonna stand here and participate in an ol' codger rant...but what about the anti-roll up window crowd firing up when the Triumph TR-4 got all futuristic in 1964? Along with push button door locks, hydraulic brakes instead of cables or rods, or even cable brakes in place of rod operat...
by eebtr7
Tue Feb 16, 2021 2:54 am
Forum: Project bikes
Topic: 74 TR5 MX Project For Ken - Finished With Video
Replies: 133
Views: 35124

Re: 74 TR5 MX Project For Ken - Finished

Uh-Oh! John, honey, you forgot to install the kiddie training wheels on the rear axle. My wife still won't let me take mine off after nearly some 50 years.
by eebtr7
Sat Feb 06, 2021 9:15 pm
Forum: Tech
Topic: Selecting the correct Amal premier
Replies: 5
Views: 2706

Re: Selecting the correct Amal premier

The factory carburetor for a B25SS is an AMAL 928. Which is to say it has a 28mm bore, or about 1 1/8", more or less. A 7/8" bore may be too small. I respectfully suggest you go back to stock size to get the machine up &running, then begin your experiments.
by eebtr7
Thu Feb 04, 2021 1:59 pm
Forum: Tech
Topic: B50 hydraulic drum brake
Replies: 58
Views: 13759

Re: B50 hydraulic drum brake

That's when you learn not to over tighten the carburetor flange nuts, AND how wonderful that kill button by your right thumb is.
by eebtr7
Thu Feb 04, 2021 3:26 am
Forum: Tech
Topic: B50 hydraulic drum brake
Replies: 58
Views: 13759

Re: B50 hydraulic drum brake

Also, my fellow Iron Men of BSA, have you forgot the Wonderful World of Engine Braking we enjoy with our Mighty Singles? It seems to me and always has the engine braking leaves the front & rear brakes as almost supplementary devices. If we were on two strokes, improving the front brake cable to hydr...
by eebtr7
Fri Jan 29, 2021 4:11 am
Forum: Tech
Topic: Serious Wet Sumping After Engine Overhaul
Replies: 7
Views: 3071

Re: Serious Wet Sumping After Engine Overhaul

It's kinda like this...With your case opened up, please look around on the inner case for an itsy-bitsy-teeny-weeny-yellow-polka-dot bikini size hole. This tiny hole is the ages old crankcase ventilation system, wherein crankcase pressure is bled off thru the hole into the 'plenum' area to vent thru...
by eebtr7
Mon Jan 25, 2021 2:09 am
Forum: Tech
Topic: B50 engine fitted to B44 frame
Replies: 13
Views: 4022

Re: B50 engine fitted to B44 frame

Baz, my friend, the answer to both questions is, Yes. The lack of the cross piece on the frame gives all the room in the world for the oil fittings/lines coming off the bottom of the engine, and removal of the head remains the same. That is, 'unless' you have replaced the head studs with bolts holdi...
by eebtr7
Sun Jan 24, 2021 7:11 pm
Forum: Tech
Topic: B50 engine fitted to B44 frame
Replies: 13
Views: 4022

Re: B50 engine fitted to B44 frame

Geez, Louise! Must I spoon feed youse guys? Yes, when the wide rear engine mount is trimmed down with your trusty, rusty hack saw, a bit of heliarc welding MAY be needed to seal up the hole! Or, slap in a wad of silicone caulk, or some leftover chewing gum from under the table at the Waffle House. I...
by eebtr7
Sun Jan 24, 2021 3:25 am
Forum: Tech
Topic: B50 engine fitted to B44 frame
Replies: 13
Views: 4022

Re: B50 engine fitted to B44 frame

Yes...It is very simple to install a B50 in a 1970 & back B25/B44 frame. I did it back in the early spring of 1977 with a 1972 B50MX going into a 1970 B25 Starfire chassis. All that was needed was to trim the engine case at the rear to fit into the frame mounts. This solution enables the engine to b...
by eebtr7
Wed Jan 13, 2021 10:50 pm
Forum: Tech
Topic: B50 hydraulic drum brake
Replies: 58
Views: 13759

Re: B50 hydraulic drum brake

Okay, I'm back with a fresh bowl of porridge. Minetymenace, Yes, we do have opposite types of weather here in South Central Texas compared to your Salisbury Plain. The seals I refer to are the slave cylinders in the brake drum where heat and exposure to water are boiling the fluid and condensating m...