Search found 112 matches

by madsundaysurvivor
Sat Jan 25, 2020 8:08 pm
Forum: Tech
Topic: B25 no return oil to tank
Replies: 3
Views: 94
Flag: Spain

Re: B25 no return oil to tank

Good idea thanks Kommando,
tomorrow I'll will fil in oil to the level of scavenge pipe and start.

OPRV is the the relief valve, isn't it?
by madsundaysurvivor
Sat Jan 25, 2020 5:10 pm
Forum: Tech
Topic: B25 no return oil to tank
Replies: 3
Views: 94
Flag: Spain

B25 no return oil to tank

Hi everyone, Today was the first start of my B25 land racing purpose. bsa_b25_-_Copia[1].jpg [youtube]https://youtu.be/rzBujGNct3k[/youtube] The bike starts easily (13:1) with a custom lever and only need tune up carb and ignition in the dyno. As always on these English motorcycles I have checked if...
by madsundaysurvivor
Wed Jan 08, 2020 12:15 pm
Forum: Tech
Topic: B44 gearbox 1969
Replies: 8
Views: 211
Flag: Spain

Re: B44 gearbox 1969

thanks a lot
by madsundaysurvivor
Wed Jan 08, 2020 9:50 am
Forum: Tech
Topic: B44 gearbox 1969
Replies: 8
Views: 211
Flag: Spain

Re: B44 gearbox 1969

thanks Jeff and kommando,
I knew about 69 camplate and selector fork.
So besides this, Can I exchange a gearbox of 67 for one of 70 of these models?
by madsundaysurvivor
Tue Jan 07, 2020 3:37 pm
Forum: Tech
Topic: B44 gearbox 1969
Replies: 8
Views: 211
Flag: Spain

B44 gearbox 1969

Hello, I want rebuild a b44vs 69 engine, from empty cases, and I need a complete gearbox. I have seen various in internet, but from others models and years. Can I use the splindes from b25 and change the by the correct sprockets? or is best buy a B44ss? best regards and happy new year to everyone Ra...
by madsundaysurvivor
Mon Dec 02, 2019 4:18 pm
Forum: Tech
Topic: Bsa b44 vs fork lenght
Replies: 2
Views: 264
Flag: Spain

Re: Bsa b44 vs fork lenght

Many thanks tridentperu
I have a bsa victor frame and engine and I want built a enduro motorcycle with a hubs bultaco and forks in my warehouse without losing originality and the closest thing to the original and its time.
What options do people use for this?
Regards
Ramon
by madsundaysurvivor
Fri Nov 29, 2019 4:21 pm
Forum: Tech
Topic: Bsa b44 vs fork lenght
Replies: 2
Views: 264
Flag: Spain

Bsa b44 vs fork lenght

Hello,
Can anyone tell me which is the lenght of b44 VS 1969 fork?
From top to centre splinde hole, without preload
Regards
Ramon
by madsundaysurvivor
Thu Oct 03, 2019 2:42 pm
Forum: Project bikes
Topic: The family is growing...
Replies: 4
Views: 674
Flag: Spain

Re: The family is growing...

Hello Remi,
Beautiffull, two race bikes and one man= many work..... :grin: one for shorts tracks and other to long track, I know it...
by madsundaysurvivor
Sun Sep 29, 2019 4:25 pm
Forum: Off topic
Topic: smiiths speedometer right
Replies: 11
Views: 1015
Flag: Spain

Re: smiiths speedometer right

Thanks kommando, that detail has scaped me
by madsundaysurvivor
Sun Sep 29, 2019 7:40 am
Forum: Off topic
Topic: smiiths speedometer right
Replies: 11
Views: 1015
Flag: Spain

Re: smiiths speedometer right

Thanks for the adress, now I have the value the shipping costs Spain-UK UK-Spain.
On the other hand I have found in Baxter cycle this replica, but it isn't very similar, basically is a black face of t100, whit the dial in grey face design, but the size of numbers isn't right
image.jpeg
by madsundaysurvivor
Thu Sep 26, 2019 12:24 pm
Forum: Off topic
Topic: smiiths speedometer right
Replies: 11
Views: 1015
Flag: Spain

Re: smiiths speedometer right

Then, Have I find a instrument with ratio 2:1, smiths number 1600?
Rgards
Ramon
by madsundaysurvivor
Thu Sep 26, 2019 12:11 pm
Forum: Off topic
Topic: smiiths speedometer right
Replies: 11
Views: 1015
Flag: Spain

Re: smiiths speedometer right

Thanks kommando, yes that is the other option, attach the clock to rear whell with another cable and gear it to the wheel
by madsundaysurvivor
Thu Sep 26, 2019 12:08 pm
Forum: Off topic
Topic: smiiths speedometer right
Replies: 11
Views: 1015
Flag: Spain

Re: smiiths speedometer right

The clocks in the photo are only a sample of rebuilt in a USA shop. All ready I know the price of repair mine.....uffff. Yes, the tacho in 1965 runsanticlockwise. I need the speedo meter, I brougth the 1966-up speedo for only 60€. Works well but in another ratio. Then I'm looking for a replica of 19...
by madsundaysurvivor
Wed Sep 25, 2019 12:33 pm
Forum: Off topic
Topic: smiiths speedometer right
Replies: 11
Views: 1015
Flag: Spain

smiiths speedometer right

Hello everyone, A months ago, I broke up definitely the original speedometer of my Bonnie T120 1965, and it is impossible to repair. Then I brought an aftermarket speedo copy of smiths grey face, the seller told me that was specific to 1966-up. But I touhght that it would be the same, craso error!! ...
by madsundaysurvivor
Tue Sep 24, 2019 10:24 am
Forum: Tech
Topic: B44 Old girl starts, needs lots of tickling to warm up then go's well!
Replies: 17
Views: 1676
Flag: Spain

Re: B44 Old girl starts, needs lots of tickling to warm up then go's well!

I'm sorry csx,
My instructions are for a dellorto, I amal carbrettors it's the opposite, when you unscrew it the mixture is poor and when you screw it enriches. But the system to tune is the same.
by madsundaysurvivor
Tue Sep 24, 2019 9:45 am
Forum: Tech
Topic: B44 Old girl starts, needs lots of tickling to warm up then go's well!
Replies: 17
Views: 1676
Flag: Spain

Re: B44 Old girl starts, needs lots of tickling to warm up then go's well!

Hello csx, Try these things: -make a strobe timing, in my ignition hpi, the marks don't mach with the spark moment. -with the engine running and hot, and the idle screw a little high, open the mixture screew until two or three turns, then begin to screw up it, until the bike begins to speed up. Then...
by madsundaysurvivor
Thu Sep 19, 2019 12:07 pm
Forum: Project bikes
Topic: B25/TR25 Land Speed Project
Replies: 87
Views: 18855
Flag: Spain

Re: B25/TR25 Land Speed Project

¡De categoria! As it says in my land (great!) Good news for you and bad for me, records are harder everyday, altough I run in apg class I have already stopped my project for more than a year due to my illness, the motorcycle is finished, just need to take the dyno, to tune carburation, ignition and ...
by madsundaysurvivor
Thu Aug 29, 2019 8:05 am
Forum: Project bikes
Topic: Hammer of the Gods - B50SS Project
Replies: 148
Views: 32717
Flag: Spain

Re: Hammer of the Gods - B50SS Project

Hello rookster, If you use reed valve in crankcase breather ,possibly its function will be canceled when using free breather in rocker cap. Most of the air will flow through pushrod tunnel. When the race stroke goes up the air will enter through the filter to the pipe of the rockerbox. And the engin...
by madsundaysurvivor
Sun May 05, 2019 8:09 pm
Forum: Tech
Topic: megacycle 541x4 degree options
Replies: 9
Views: 2269
Flag: Spain

Overlap problem megacycle 541x4

Thanks Tom. I chamfered the fire ring for this reason, and too think that if it does not touch, the mixture flows better, the seat is very close to the linner. My problen is between valves, I can see a light bright of the black coating in the edge. I will make the modifications you indicate. My exha...
by madsundaysurvivor
Sun May 05, 2019 8:44 am
Forum: Tech
Topic: megacycle 541x4 degree options
Replies: 9
Views: 2269
Flag: Spain

Overlap problem megacycle 541x4

Another option could be to re-cut the seats and that the valve seats deeper, then I would have to also cut the pushrods, but I do not know if this would be enough to get at least 1 mm between valves
by madsundaysurvivor
Sat May 04, 2019 8:26 pm
Forum: Tech
Topic: megacycle 541x4 degree options
Replies: 9
Views: 2269
Flag: Spain

Overlap problem megacycle 541x4

Hello, I have a problem with the cylinder head, beacuse valves make contact in overlap time, only is a slighty "snap" and practically does not leave a mark on the edge. But this should not happen, I would like find here a gap to at least 1mm. the cam timing is correct and would not change the lobe c...
by madsundaysurvivor
Wed May 01, 2019 7:51 am
Forum: Off topic
Topic: Niche industries
Replies: 0
Views: 1355
Flag: Spain

Niche industries

Do you now Niche industries in Ontario?
They make parts for H*nda. I wnat buy a top end kit for H*nda xr400. It very cheap compared with the price of others pistons. Does they make good quality parts?
Regards
by madsundaysurvivor
Wed May 01, 2019 7:37 am
Forum: Tech
Topic: B25 ignition advance curve
Replies: 2
Views: 1163
Flag: Spain

Re: B25 ignition advance curve

Thank you hhh,
Is the same that I think. I don't understand why hpi ignition declare this curve for standard 4 stroke.
The digital electrex stk-010D, Do they use the same curve?
Regards
by madsundaysurvivor
Fri Apr 26, 2019 11:28 am
Forum: Tech
Topic: B25 ignition advance curve
Replies: 2
Views: 1163
Flag: Spain

B25 ignition advance curve

Hello, Have someone the advance curve of B25 from static degrees to full advance? A few years ago I brought to HPI igntion Belgium an universal rotor with digital advance CDI, the main reason was that they sold it with the plate adapted to BSA and the correct rotor hole https://www.hpi.be/068_rows.p...
by madsundaysurvivor
Wed Apr 10, 2019 6:53 pm
Forum: Tech
Topic: Remote Oil Filter B40/B44
Replies: 10
Views: 2210
Flag: Spain

Re: Remote Oil Filter B40/B44

Hello csx, I have mounted on my bsa b25 one like the one you indicate in the return oil pipe you need that the pumb pushes towards the filter. But I have not tried it yet. It worked well on other bikes. what is important, is to know what pressure opens baypass valve of the filter element when the fi...
by madsundaysurvivor
Sat Apr 06, 2019 7:35 am
Forum: Tech
Topic: Imperial thread sizes
Replies: 16
Views: 2335
Flag: Spain

Re: Imperial thread sizes

I have the correct tools (from a friend give me of him old workshop) and I know the differece between angle threads. But I have a pile of bolts and is very hard to distinguse BSF and CEI in the small sizes. I ask if you know a metode like: if I put a bsf bont above one bscy and the thread match in t...
by madsundaysurvivor
Fri Apr 05, 2019 5:18 pm
Forum: Tech
Topic: Imperial thread sizes
Replies: 16
Views: 2335
Flag: Spain

Re: Imperial thread sizes

thanks kommando,
I think you're right, I've ever bought set of cover screws BSCY for triumph and other times BSF and they look exactly the same to me
by madsundaysurvivor
Fri Apr 05, 2019 2:39 pm
Forum: Tech
Topic: Imperial thread sizes
Replies: 16
Views: 2335
Flag: Spain

Imperial thread sizes

Hello, I would like that you can help me with this size. unafortunately my english motorcycles are from the period of 65 to 69. I think that is the worst time for the mixes of screw threads. I have a box full of bolts, taps, dies... BSCY, BA, BSF, UNF, BSC.....and I want organize it With the thread ...
by madsundaysurvivor
Wed Apr 03, 2019 11:57 am
Forum: Project bikes
Topic: b50 racer
Replies: 7
Views: 1446
Flag: Spain

Re: b50 racer

Very beautiful, I see that you changed the tank, I guess to be able to sit forward. Maybe it's the only b50 that is currently running around here regards Muy bonita, veo que cambiaste el deposito, supongo que para poder sentarse mas adelante. Quizas es la unica b50 que esta corriendo actualmente por...
by madsundaysurvivor
Wed Apr 03, 2019 8:49 am
Forum: Project bikes
Topic: b50 racer
Replies: 7
Views: 1446
Flag: Spain

Re: b50 racer

Hi Carlos, I'm glad to see a compatriot here. On the bike of the photo, from my little knowledge of these models, I can only say that the modifications in the E & V engine are a guarantee, he is an expert in the field. I have spoken with him for advice and I have always bought him pieces with excell...
by madsundaysurvivor
Tue Apr 02, 2019 2:50 pm
Forum: Tech
Topic: Primary chan tensioner thoughts
Replies: 4
Views: 1201
Flag: Spain

Re: Primary chan tensioner thoughts

Thank you for your answers In english bikes I usually use renold chains, in b25 fit well. I think the slop is correct about 5mm up and down but I did not know if with the km it would de-stress and touch the alternator studs if it runs without tensioner. In other european motorcycles I use regina cha...
by madsundaysurvivor
Mon Apr 01, 2019 8:49 am
Forum: Tech
Topic: 1000-Series 2/4-stroke Concentrics
Replies: 102
Views: 12738
Flag: Spain

Re: 1000-Series 2/4-stroke Concentrics

Now I havent a 1000 serie, but checking parts in the disaster drawer I have seen another differeces that I didn't remember: 1-the needle jet in 4t have a hole in the nut in 2t no 2-the main jet holders are differents , in 4t is more long than in 2t, and consequently the main jet is more far of the c...
by madsundaysurvivor
Sun Mar 31, 2019 9:12 am
Forum: Tech
Topic: 1000-Series 2/4-stroke Concentrics
Replies: 102
Views: 12738
Flag: Spain

Re: 1000-Series 2/4-stroke Concentrics

Hello magneto, I dont know if I can help you In spain the manufacturer with license of amal carbs was Arreche carbs and I think I will be possible to find in the store room :roll: some drawings with sizes. I dont speak well english and have a doubt, Do you refer to conduct which intersects with the ...
by madsundaysurvivor
Sun Mar 31, 2019 8:43 am
Forum: Tech
Topic: Primary chan tensioner thoughts
Replies: 4
Views: 1201
Flag: Spain

Primary chan tensioner thoughts

Hello Does anyone run your engine without primary chain tensioner? In other racing bikes with short primary chain I always remove the chain tensioner, less friction and forget the posible problems with it. Once I broke the tensinoner and blocked the chainwheell and I left flying several meters.... I...
by madsundaysurvivor
Fri Mar 22, 2019 9:08 am
Forum: Tech
Topic: megacycle 541x4 degree options
Replies: 9
Views: 2269
Flag: Spain

Re: megacycle 541x4 degree options

Thank you for your advices Tom I live in the beach, and here I have be very exact with the mixture and can't not advance much the ignition with standard fuels, quickly pre-detonates. I have broken my bultaco tss several times by this questions. I ported the exahust to 1 1/2 too and I can try with a ...
by madsundaysurvivor
Thu Mar 21, 2019 12:44 pm
Forum: Tech
Topic: B50 - Reaming New Camshaft Bushes
Replies: 8
Views: 1627
Flag: Spain

Re: B50 - Reaming New Camshaft Bushes

I'm sorry Barry, my contacts are in Spain.... and here like in England the most of workshops closed after 2007 economic crisis. I'm thinking in b25 camshaft, (same size both sides) if you are talking about b44, you would need two adjustable reamers. The range of good variable reamer is about 0,60mm ...
by madsundaysurvivor
Thu Mar 21, 2019 12:13 pm
Forum: Tech
Topic: B25 Big End Shells
Replies: 20
Views: 2938
Flag: Spain

Re: B25 Big End Shells

Thanks
by madsundaysurvivor
Thu Mar 21, 2019 11:38 am
Forum: Tech
Topic: B25 Big End Shells
Replies: 20
Views: 2938
Flag: Spain

Re: B25 Big End Shells

Thank you kommando.
Then, Are they a good quality? I don't know these materials and brands
by madsundaysurvivor
Wed Mar 20, 2019 7:49 pm
Forum: Tech
Topic: B25 Big End Shells
Replies: 20
Views: 2938
Flag: Spain

Re: B25 Big End Shells

Hello,

I have a pair of shells in my stock of a T100. I could use it in the B25...., but I don't know its quality. Please, could you tell me if the trade brand is glacier o another?
G in a square frame?
20190318_181605.jpg
by madsundaysurvivor
Wed Mar 20, 2019 7:12 pm
Forum: Tech
Topic: B50 - Reaming New Camshaft Bushes
Replies: 8
Views: 1627
Flag: Spain

Re: B50 - Reaming New Camshaft Bushes

Hello, I will try to explain with my english.... You can do an acceptable home work with a ajustable reamer.... First you need fit the bushes in the cases, and bolt both cases (right crankcase and inner timing cover), If the remaer is enough long you can reamer both bushes a the same time, if not yo...