Search found 220 matches

by baz
Thu Feb 06, 2020 11:46 pm
Forum: Parts & Bikes wanted
Topic: Wanted oif front forks
Replies: 0
Views: 479
Flag: England

Wanted oif front forks

Wanted complete front end or just forks and yokes for an oil in frame b25 -b50 etc
Cheers baz
by baz
Mon Feb 18, 2019 1:20 am
Forum: Tech
Topic: Best material for crankcase studs ?
Replies: 5
Views: 1671
Flag: England

Re: Best material for crankcase studs ?

En8 ok thank you for that
by baz
Mon Feb 18, 2019 1:13 am
Forum: Tech
Topic: Electric Start
Replies: 631
Views: 131431
Flag: England

Re: Electric Start

Absolutely amazing work beat
very well done you should be very proud of yourself
by baz
Sat Feb 02, 2019 6:53 pm
Forum: Parts & Bikes wanted
Topic: Wanted BSA b44 +20
Replies: 3
Views: 1214
Flag: England

Re: Wanted BSA b44 STD piston or +20

Yes I'd be interested in the +20 I have sent you a message
Cheers baz
by baz
Thu Jan 31, 2019 8:22 pm
Forum: Tech
Topic: Best material for crankcase studs ?
Replies: 5
Views: 1671
Flag: England

Best material for crankcase studs ?

I will soon need to make some special length 7/16" crankcase /barrel studs
I'm not sure what grade of steel to use?
I could buy a set of B50 studs and cut them down to length as the crankcase thread is 7/16 unc
But if I make them I'm not certain what material to order?
Cheers baz
by baz
Thu Jan 31, 2019 8:15 pm
Forum: Parts & Bikes wanted
Topic: Wanted BSA b44 +20
Replies: 3
Views: 1214
Flag: England

Wanted BSA b44 +20

Wanted b44 +20 piston
Regards baz UK
by baz
Sun Jun 18, 2017 10:28 pm
Forum: Tech
Topic: oil pressure
Replies: 18
Views: 4038
Flag: England

Re: oil pressure

i think you need to check the big end as soon as you can,an oil pressure gauge is easy to fit and a good idea on a b25 motor,but as others have said check the crankshaft seal/oil pump but my money would be on big end play ,dont worry about oil coolers ,cheers
by baz
Sat Feb 18, 2017 12:37 pm
Forum: Tech
Topic: Setting idle mixture
Replies: 7
Views: 1825
Flag: England

Re: Setting idle mixture

Hello all, I'd like some advice before fiddling with my carb's idle mixture please. It's a 1969 B25 with a new AMAL Mk1 carb. If I understand correctly: 1. Set the idle speed slightly high to stop it dying completely when it stutters 2. Turn the mixture screw in, counting the turns to bottom to get...
by baz
Wed Jan 04, 2017 10:36 pm
Forum: Tech
Topic: What is it really ?
Replies: 9
Views: 2395
Flag: England

Re: What is it really ?

didn't think B40 cylinder would fit in a b25 crankcase ........... must try, would be a solution for a 440 engine....? tried to open web-page but got an advert to buy a house ....? Oh well You need to open out the crank case mouth. Studs are the same centers. B 40 is an overbored B25 B44 is a strok...
by baz
Wed Aug 31, 2016 5:23 pm
Forum: Tech
Topic: B25 won't rev past 5k
Replies: 85
Views: 15139
Flag: England

Re: B25 won't rev past 5k

try dropping the needle down a notch also are you certain the timing is right? cheers
by baz
Sat Apr 09, 2016 10:11 am
Forum: Tech
Topic: Amal carb air slide
Replies: 9
Views: 2264
Flag: England

Re: Amal carb air slide

you really wont need a choke slide better off without it cheers baz
by baz
Thu Mar 31, 2016 4:56 pm
Forum: Project bikes
Topic: Hwan's BSA 250 Scrambler
Replies: 108
Views: 24175
Flag: England

Re: BSA 250 Scrambler

Not a good start to the day - First the BMW F650 w/pump seal went ...... Then fitted another pressure gauge on B25 and the oil pressure ACTUALLY reads 35-45psi .... when coldish :( Then while checking ignition timing as i revved it to 8000rpm its bent another valve ! Not a happy bunny. Now in fetal...
by baz
Sun Oct 18, 2015 12:24 pm
Forum: Tech
Topic: ultimate 250
Replies: 20
Views: 4000
Flag: England

Re: ultimate 250

:cry: got the crankcases apart today to find what looks to be a total load of bodges. sludge trap bung totally chewed up.crank is 10 under and con rod has very litte play at the small end and rocked on the crank but strangley the shells seemed ok.i can only surmise that the thing was bodged to sell...
by baz
Sun Oct 18, 2015 12:18 pm
Forum: Tech
Topic: +60 rebore jp piston b44
Replies: 12
Views: 2936
Flag: England

Re: +60 rebore jp piston b44

I bored my B44 motor to +.060 and fitted a Gandini piston. All was good for 1000 miles or so, then started burning oil and loosing compression. When I took a look the liner had distorted down one side due to it not being thick enough to take the overbore. I'm not saying that they are all like it bu...
by baz
Fri Apr 10, 2015 7:33 pm
Forum: Tech
Topic: hot startingT25
Replies: 16
Views: 3375
Flag: England

Re: hot startingT25

The bike starts 1st/2nd kick when cold, but hot stating is a problem. o I'm wondering if the problem is fuel vapourisation as the carb gets very hot when idling the engine or when stopped after a run. There is no insulating spacer on my bike, should there be one? No mention of a spacer in workshop ...
by baz
Mon Jan 26, 2015 11:47 pm
Forum: Tech
Topic: conical front brake conversion to hydraulic ?
Replies: 6
Views: 2004
Flag: England

Re: conical front brake conversion to hydraulic ?

vetterlatethanever wrote:This looks interesting.
10931450_10202838588638913_6284918732386424144_n.jpg
that is a very neat conversion, any details on whether it works or not? ,,,,,,,,,,baz
by baz
Mon Jan 05, 2015 6:55 pm
Forum: Tech
Topic: b44 into oil in frame
Replies: 6
Views: 1673
Flag: England

Re: b44 into oil in frame

I'm going to fit my 441 motor into an oil in frame, I can see that I may knead to cut the footrest tube of, Has any one had a problem from doing this and are there any other mods needed . <217 I'm pretty sure all they did when they built the triumph adventurer was remove the bottom cross tube from ...
by baz
Mon Nov 10, 2014 11:56 pm
Forum: Tech
Topic: Oil return
Replies: 9
Views: 2073
Flag: England

Re: Oil return

dont forget if you do take a feed from the frame sump plug there will be a lot of sludge in the frame and some say every blow up seizure etc from previous owners is recorded in that part of the frame!!,,,,,,baz
by baz
Wed Sep 11, 2013 7:40 pm
Forum: Tech
Topic: Piston rust seized in cylinder
Replies: 27
Views: 6703
Flag: England

Re: Piston rust seized in cylinder

I would try making up some kind of puller, using studding through the cylinder stud holes secured with nuts on the cylinder base. You would then need a thick steel plate mounted on top of the cylinder with four holes to match the stud holes. The steel plate would have a threaded hole in the center ...
by baz
Thu Jul 25, 2013 1:54 am
Forum: Tech
Topic: b25ss crankcase mystery!
Replies: 8
Views: 1901
Flag: England

Re: b25ss crankcase mystery!

it looks like someone has copied a triumph t140 set up,this has 3 small holes exactly the same to level the engine oil and chaincase oil ,the holes are not big enough for breather holes, the triumph t140 has no crankshaft seal it breathes through a baffled plae behind the clutch in the top of the ch...
by baz
Mon Mar 11, 2013 6:50 pm
Forum: Tech
Topic: Successful B44 (TR44W) head removal in frame.
Replies: 7
Views: 1634
Flag: England

Re: Successful B44 (TR44W) head removal in frame.

if you just want to change a valve spring without removing the head just use the Australian rope trick ,,,,,baz
by baz
Mon Feb 25, 2013 8:15 pm
Forum: Tech
Topic: Main bearing interference fit on crank.
Replies: 11
Views: 3868
Flag: England

Re: Main bearing interference fit on crank.

What bonneville is it? the inner bearing from memory on the timing side of the last models made had a special bearing 3 pieces thrust/inner and outer this may be what the mechanic means? the earlier models had a ball race timing side and a roller bearing drive side,even earlier model (pre unit) had ...
by baz
Tue Feb 12, 2013 7:21 pm
Forum: Tech
Topic: tool for valve guide replacing
Replies: 20
Views: 3742
Flag: England

Re: tool for valve guide replacing

make sure there is no carbon on the guide when you drift it out or it can damage the guide hole,some people recomend bead blasting the guide before removing it, baz
by baz
Tue Feb 05, 2013 8:36 pm
Forum: Tech
Topic: C25 /B25 convert this to a proper oil seal type feed ?
Replies: 25
Views: 6176
Flag: England

Re: C25 /B25

are you sure its a C25 engine and not a C15 engine? as it should have an oil seal on the timing side as standard!,post a photo if you can. goodluck with it ,,,,,baz
by baz
Mon Jan 21, 2013 10:56 pm
Forum: Tech
Topic: B25 - a bit more oomph...
Replies: 10
Views: 2492
Flag: England

Re: B25 - a bit more oomph...

cant remember CR but around 10.5 -1 i think,the head was skimmed and welded up,i tried different carbs but settled on a 30mm concentric and a home made megathone slightly baffled,the bike would not rev out on the std silencer cheers baz
by baz
Mon Jan 21, 2013 7:16 am
Forum: Tech
Topic: B25 - a bit more oomph...
Replies: 10
Views: 2492
Flag: England

Re: B25 - a bit more oomph...

The very best thing i did to my trailblazer was fit a Y*maha xs1100 liner and piston this makes the motor 283cc,the bike ran smoother quieter faster but the biggest improvement was midrange,but then i had these parts lying around and i had all original parts to put back if it all went wrong i was ju...
by baz
Sat Dec 29, 2012 9:58 pm
Forum: Tech
Topic: INNER & OUTER TIMING COVER SWAP
Replies: 7
Views: 1979
Flag: England

Re: INNER & OUTER TIMING COVER SWAP

Did you get a timing cover sorted out?,i have found one in good useable condition £35 posted if your interested pm me cheers baz
by baz
Sat Dec 29, 2012 9:52 pm
Forum: Tech
Topic: 250 breathing
Replies: 54
Views: 8180
Flag: England

Re: breathing

Beat where are you???
by baz
Sun Dec 23, 2012 1:58 am
Forum: Tech
Topic: Fork Damper Valve
Replies: 6
Views: 2557
Flag: England

Re: Fork Damper Valve

when i bought new stanchions for my Trailblazer i had to turn the shuttle damper and groove for the Oring down a couple of thou before it would fit inside the stanchion............baz
by baz
Wed Dec 12, 2012 9:42 pm
Forum: Tech
Topic: bsa b25 engine in oif frame
Replies: 17
Views: 4951
Flag: England

Re: bsa b25 engine in oif frame

is it possible to show pic of the problem are you talking about the top of the frame? is it easy to make another one intake/outake pipe fitting? sorry if these are dumb questions None of your questions are dumb far from it,this mod has been done many times before if you do a search on here i am sur...
by baz
Wed Dec 12, 2012 6:54 pm
Forum: Tech
Topic: bsa b25 engine in oif frame
Replies: 17
Views: 4951
Flag: England

Re: bsa b25 engine in oif frame

I think the pitch of the holes, front to rear top mount is also slightly different... yes they are about 1/8" but with wear and tear this can vary,they oil pickup and return wont fit so you will have to make a new one or cut the cross tube out of the frame as they did when they built the triumph ad...
by baz
Wed Dec 05, 2012 7:08 pm
Forum: Tech
Topic: B44 : one pretty tank, one tap, an idea for a reserve ?
Replies: 32
Views: 4763
Flag: England

Re: B44 : one pretty tank, one tap, an idea for a reserve ?

Is your tank a 1/4 bsp fitting or a 3/8? the 3/8 is easy to get,just use a aftermarket harley one ,i have made an adapter before to use a japanese tap with main and reserve to a 1/4 bsp before i wellded a plate to a 1/4 bsp thread then i ran the main copper feed pipe through the fitting extended it ...
by baz
Wed Dec 05, 2012 6:56 pm
Forum: Tech
Topic: INNER & OUTER TIMING COVER SWAP
Replies: 7
Views: 1979
Flag: England

Re: INNER & OUTER TIMING COVER SWAP

i will have a look for a case,what are you going to do with the bike? ie restore it or use it as is race it? i only ask because then i will know if you need the one with the points wire cut out(early model) or without as your motor should have?if i have one it will be £25 plus post cheers baz
by baz
Sun Dec 02, 2012 9:09 pm
Forum: Tech
Topic: INNER & OUTER TIMING COVER SWAP
Replies: 7
Views: 1979
Flag: England

Re: INNER & OUTER TIMING COVER SWAP

the b50 cover will probably have the later kickstart reversed quadrant it will fit but you will need the b50 quadrant/ratchet etc maybe gearbox mainshaft? others will be along to help on this,if all you need is the oil pressure pick up point then they are easy to get from ebay etc( but make sure you...
by baz
Mon Sep 10, 2012 8:40 pm
Forum: Project bikes
Topic: B50 at Bonneville Salt Flats
Replies: 223
Views: 98748
Flag: England

Re: B50 at Bonneville Salt Flats

this is one of the best posts i have read brilliant work truly amazing ,,,,,,,baz
by baz
Mon Sep 10, 2012 8:30 pm
Forum: Parts & Bikes wanted
Topic: Bb44 Piston
Replies: 17
Views: 3474
Flag: England

Re: Bb44 Piston

if it runs ok as it is just get the crank ballanced, someone will correct me but maybe if you use a piston with a full skirt the liner may then flex? ,,,,,,,,,,,baz
by baz
Mon Sep 10, 2012 12:11 am
Forum: Parts & Bikes wanted
Topic: Bb44 Piston
Replies: 17
Views: 3474
Flag: England

Re: Bb44 Piston

Dont go above +40 on a B44 the liker will flex ,,,,,,,,,,,,,baz
by baz
Tue Aug 07, 2012 11:17 pm
Forum: Project bikes
Topic: b25ss project on the cheap.
Replies: 152
Views: 35555
Flag: England

Re: b25ss project on the cheap.

Very well done sounds good you will be on the road soon!!! ...........baz
by baz
Sat Aug 04, 2012 7:45 pm
Forum: Project bikes
Topic: b25ss project on the cheap.
Replies: 152
Views: 35555
Flag: England

Re: b25ss project on the cheap.

is the carb flooding up when you press the tickler button down?, when i suspect a blocked pilot bush i drill out the other side of the carb 4.2 mm then tap for 5mm screw the you can push a wire right through the bush,if the bush is blocked solid drill it out and fit a new one in the threaded hole wh...
by baz
Mon Jul 30, 2012 5:43 pm
Forum: Tech
Topic: C25/B25 cylinder head removal
Replies: 20
Views: 4094
Flag: England

Re: C25/B25 cylinder head removal

are you sure you really need to de coke this engine?,because i have never known a b25 motor to last long enough between re builds to build up enough coke,if the engine is running ok i would do all the normal maintenance and leave the head alone but whatever you do goodluck with it there are plenty h...