Search found 138 matches

by fastharry
Thu Jul 18, 2019 10:39 am
Forum: Tech
Topic: Spacer plate
Replies: 3
Views: 98
Flag: England

Re: Spacer plate

Not sure its for a B50 as the bore would leave 2mm wall thickness for the liner, i don't have the stud pattern measurements for a B50, but i tried it on a B44 and the spacer was smaller. I seem to have created 2 posts because my first would not go through but it seems it now has, is it possible to d...
by fastharry
Thu Jul 18, 2019 9:58 am
Forum: Tech
Topic: Spacer plate
Replies: 3
Views: 98
Flag: England

Spacer plate

Can anyone help with identifying this cylinder spacer, It has a bore of 88mm x 14mm thick, stud spacing of 73mm centre's or 2 7/8th,
by fastharry
Sat Jul 06, 2019 10:34 pm
Forum: Parts for sale
Topic: B50 Mx sump Guard
Replies: 1
Views: 384
Flag: England

Re: B50 Mx sump Guard

Sold,
by fastharry
Wed Jul 03, 2019 11:20 am
Forum: Tech
Topic: B44 to 82mm
Replies: 2
Views: 274
Flag: England

Re: B44 to 82mm

Yes, i am in that bracket as well, great advice, many thanks.
by fastharry
Sun Jun 30, 2019 11:35 am
Forum: Parts for sale
Topic: B50 Mx sump Guard
Replies: 1
Views: 384
Flag: England

B50 Mx sump Guard

B50 Mx Sump guard, Very nice condition, few light scratches but nothing bad, £30 + post.
by fastharry
Sun Jun 30, 2019 11:11 am
Forum: Tech
Topic: B44 to 82mm
Replies: 2
Views: 274
Flag: England

B44 to 82mm

Can anyone tell me if the is a noticeable gain by going to 82mm bore on a B44, Im about to start on an engine thats going in a CCM frame.
by fastharry
Sat Jun 15, 2019 2:45 pm
Forum: Parts & Bikes wanted
Topic: OIF Frame and 250ish Engine WANTED
Replies: 1
Views: 230
Flag: England

Re: OIF Frame and 250ish Engine WANTED

I have a B25 frame, crank cases and crank, i also have a b44 crank, c/cases and various other b44 bits, PM me for contact details. in leicester.
by fastharry
Fri Jun 14, 2019 5:13 pm
Forum: Parts & Bikes wanted
Topic: B44 pistons
Replies: 0
Views: 185
Flag: England

B44 pistons

B44 slipper pistons wanted x 2 New old stock preferred.
by fastharry
Fri Jun 14, 2019 4:59 pm
Forum: Parts & Bikes wanted
Topic: Prop stand and sump plate
Replies: 13
Views: 1700
Flag: England

Re: Prop stand and sump plate

I have a sump guard in very good condition, Only small fault is the lower mounting holes have been filed to make removal easier i guess, you would not see it when fitted. In leicester,
by fastharry
Thu Dec 27, 2018 9:13 am
Forum: Parts & Bikes wanted
Topic: BSA B44 Crank Cases
Replies: 5
Views: 1347
Flag: England

Re: BSA B44 Crank Cases

If you don't mind me asking, what did you have to pay for them. I will put them on sale but have no idea of the value.
by fastharry
Thu Dec 20, 2018 9:04 am
Forum: Tech
Topic: Crankcase Breathing
Replies: 22
Views: 3415
Flag: England

Re: Crankcase Breathing

Royal Enfield use a piece of half inch dia rubber tube about 6 inches long , flattened at the end like a duck bill, £2 each.

Edit by MM:
Example here
by fastharry
Wed Dec 05, 2018 11:21 am
Forum: Parts & Bikes wanted
Topic: BSA B44 Crank Cases
Replies: 5
Views: 1347
Flag: England

Re: BSA B44 Crank Cases

Yes i have.
by fastharry
Mon Nov 19, 2018 11:14 pm
Forum: Tech
Topic: B25 carrillo
Replies: 15
Views: 1997
Flag: England

Re: B25 carrillo

You might take a look at Thunder engineerings alloy rods for a 500 triumph. I believe they fit the B25, Very well made, I have fitted several sets to race engines with no problems so far, And far better value than Carrillo. Iv'e seen lots of comments saying do not use this make of shell or that make...
by fastharry
Wed Mar 14, 2018 6:05 pm
Forum: Parts for sale
Topic: B44 Crank Cases
Replies: 0
Views: 1203
Flag: England

B44 Crank Cases

I have the cases to match the crank on sale. in good condition , all threads look to be fine. One small part has been welded where the oil scraper has been knocked at some time, some scratches and rubbing marks here and there but ready to be used as is after a bit of a clean Will make a nice set of ...
by fastharry
Wed Mar 14, 2018 5:57 pm
Forum: Parts for sale
Topic: B44 Crank
Replies: 0
Views: 1052
Flag: England

B44 Crank

I have some parts im looking to sell, First is a crank from a B44 b VS . Looks to be in all round good condition. Big end feels fine but no guarantee, Threads and keyways all in very good order, £150 regards. Harry. Edit by MM, phone number removed to protect you from the insidious, please use the P...
by fastharry
Wed Mar 08, 2017 2:43 pm
Forum: Suppliers and New Products
Topic: Vapour blasting
Replies: 7
Views: 1652
Flag: England

Re: Vapour blasting

I use hermes to return the parts i have bead/vapour blasted for customers, very good value, Parcel Hero for heavier stuff.
by fastharry
Mon Feb 06, 2017 2:56 pm
Forum: Tech
Topic: B25 won't rev past 5k
Replies: 85
Views: 11565
Flag: England

Re: B25 won't rev past 5k

I wondered how long it would be before we got our legs slapped! Many thanks for the battery info, i think i will go that route with out an alternator. regards Harry.
by fastharry
Mon Feb 06, 2017 11:04 am
Forum: Tech
Topic: B25 won't rev past 5k
Replies: 85
Views: 11565
Flag: England

Re: B25 won't rev past 5k

www.dirttrackriders.co.uk Its all on there Alan. Dirtquake is at kings lynn which is not labled for some reason.
by fastharry
Mon Feb 06, 2017 10:38 am
Forum: Tech
Topic: B25 won't rev past 5k
Replies: 85
Views: 11565
Flag: England

Re: B25 won't rev past 5k

Our races are on speedway tracks for 6 to 8 laps at around 30s a lap. So not a lot of on track time, A short practice , 3 heats and an 8 lap final, so probably about 35 mins max run time, The debate is wether to run with an alternator and reg box, or just a battery, Hwan said he had an average 2amp ...
by fastharry
Sun Feb 05, 2017 11:09 am
Forum: Tech
Topic: B25 won't rev past 5k
Replies: 85
Views: 11565
Flag: England

Re: B25 won't rev past 5k

Hwan. I was thinking of fitting a wassell ignition to my T140 Flattrack race bike, from yours and Stans findings it would indicate that i would need to run an alternator to keep the battery up, would you agree.
by fastharry
Wed Feb 01, 2017 10:05 am
Forum: Project bikes
Topic: BSA C15/B25/B40 FLATRACK PROJECT
Replies: 39
Views: 7093
Flag: England

Re: BSA C15/B25/B40 FLATRACK PROJECT

Is the clutch a taper fit or has the shaft been changed, I fancy something like that on my B50 flattracker.
by fastharry
Wed Jan 04, 2017 11:31 am
Forum: Tech
Topic: Mx fork mods
Replies: 21
Views: 3676
Flag: England

Re: Mx fork mods

A lot of people go for Betor . Ciriani, or Marzzochi. I have tried to find good quality progressive springs but 70's bsa's are not on any list i can find. One company did have B50's listed but they also listed 750 T140 and Trident as the same spring , so make of that what you will.One warning i will...
by fastharry
Sun Jan 01, 2017 2:37 pm
Forum: Tech
Topic: B50 Fork stanchion length??
Replies: 11
Views: 1701
Flag: England

Re: B50 Fork stanchion length??

The effect will be slower steering which = a more ponderous front end, It will increase the already long rake angle, in theory you would want to raise the rear the same amount to keep things the same as factory, except a higher seat height. None of this would be an ideal street mod in my opinion. I ...
by fastharry
Wed Nov 09, 2016 10:13 am
Forum: Tech
Topic: Mikuni cold starter jet change
Replies: 9
Views: 1543
Flag: England

Re: Mikuni cold starter jet change

Excellent, I to find it strange that they use the same choke jet in a range of different bore sizes.
by fastharry
Mon Oct 31, 2016 11:06 pm
Forum: Tech
Topic: Mikuni cold starter jet change
Replies: 9
Views: 1543
Flag: England

Re: Mikuni cold starter jet change

On the 32mm the choke jet is to big, a company called moto carb will do a conversion for you for £25. Or he will sell you a jet . He drills his out from the inside then taps it 4mm , i do my own with his jets. If you turn your bowl upside down you will see a small round stub under the jet, I drill t...
by fastharry
Sun Oct 09, 2016 5:33 pm
Forum: Tech
Topic: B25 won't rev past 5k
Replies: 85
Views: 11565
Flag: England

Re: B25 won't rev past 5k

I don't think its been mentioned yet and is often overlooked is the slide cutaway size which works around the midrange area, iv'e had it happen 3 times on different bikes with similar problems, Not many bikes are factory standard after a few years of wear and tear and modification, if its to small i...
by fastharry
Wed Oct 05, 2016 5:23 am
Forum: Tech
Topic: camshaft sealing
Replies: 15
Views: 2442
Flag: England

Re: camshaft sealing

Could you recommend a supplier of the 2 lip seal please.
by fastharry
Wed Oct 05, 2016 5:18 am
Forum: Tech
Topic: NEB or PES crankshaft?
Replies: 8
Views: 2278
Flag: England

Re: NEB or PES crankshaft?

Do you have any big end kits in stock Mark? And is it possible to buy just a bearing if my pin is ok?
by fastharry
Wed Oct 05, 2016 5:07 am
Forum: Tech
Topic: B 50 MX
Replies: 5
Views: 1150
Flag: England

Re: B 50 MX

The secret is Jim is to leave it alone unless you have worn sprockets. standard is ok if its your first race, but as has already been said it depends on the track. Unless your Jeff Smith a few teeth ain't gonna make a lot of difference. Get used to the bike, concentrate more on the handling setup, L...
by fastharry
Mon Oct 03, 2016 8:43 am
Forum: Tales Of Woe
Topic: one way valve
Replies: 15
Views: 3166
Flag: England

Re: one way valve

Don't mean to be a pain but there are hundreds of them on ebay most of them with several tubes sticking out. Are there any make or model that have been tried and tested, i bought some of the xs650 reed ones fitted about 14" from the case but they get gummed up fairly quick. Perhaps some sort of oil ...
by fastharry
Sat Oct 01, 2016 9:52 pm
Forum: Tales Of Woe
Topic: one way valve
Replies: 15
Views: 3166
Flag: England

Re: one way valve

Can you find the lot number cus i cannot find it.
by fastharry
Sat Oct 01, 2016 3:32 pm
Forum: Tales Of Woe
Topic: one way valve
Replies: 15
Views: 3166
Flag: England

Re: one way valve

20161001_131848.jpg
Is this a similar thing Stan? or is it best to use the early ford ones.
by fastharry
Sun Aug 21, 2016 12:33 pm
Forum: Tech
Topic: The best way to get an honest 40hp from a B50
Replies: 20
Views: 2959
Flag: England

Re: The best way to get an honest 40hp from a B50

Did you feel a difference Tom by going to the long rod? I have a 540 kit ready to go into my flattracker, i also have a 6" carrillo standing by, but i think stan will slap my legs if i put it in. regards, Harry.
by fastharry
Thu May 05, 2016 7:54 am
Forum: Tech
Topic: short
Replies: 19
Views: 3061
Flag: England

Re: short

Mark, Have you tried Coventryboring.co.uk 02476 672372 they do a lot of stroked Trident cranks. Or Chesman engineering also in coventry.
by fastharry
Thu May 05, 2016 7:32 am
Forum: Tech
Topic: B44 Cylinder Query
Replies: 6
Views: 1381
Flag: England

Re: B44 Cylinder Query

Can i ask Mintey if you noticed a difference after fitting your long rod, I have my B50 flattracker in bits at the moment to fit a JE 540 kit and discovered i have a polished standard rod in it , and i will have to change it for peace of mind. Could do with some seat of the pants info, whether to pa...
by fastharry
Wed Mar 09, 2016 10:37 pm
Forum: Tech
Topic: Cylinder barrel stuck
Replies: 4
Views: 1006
Flag: England

Re: Cylinder barrel stuck

Yep a bit of heat worked. It will be fine once the embers die down!! Thank you midgie
by fastharry
Wed Mar 09, 2016 7:58 pm
Forum: Tech
Topic: Cylinder barrel stuck
Replies: 4
Views: 1006
Flag: England

Cylinder barrel stuck

Is it common for the cylinder studs to seize in the alloy barrel on a B50 mx . Getting ready to fit a 540 kit. this bike has been off road and round speedway tracks for 2 seasons so its seen its fair share of muck. Don't no when the last time it was off, but it does not want to come off now, my next...
by fastharry
Wed Mar 02, 2016 12:30 pm
Forum: Tech
Topic: LF Harris Conrods.
Replies: 52
Views: 7747
Flag: England

Re: LF Harris Conrods.

You are just up the road from Steve at Thunder Engineering, take the time to see his rods, you will not find any file marks on his, he has invested in an expensive Honing machine to finish the Big end and little end.
by fastharry
Mon Feb 22, 2016 11:10 pm
Forum: Tech
Topic: LF Harris Conrods.
Replies: 52
Views: 7747
Flag: England

Re: LF Harris Conrods.

Is that the Velocette currently trading at Meriden Coventry?
by fastharry
Mon Feb 22, 2016 3:06 pm
Forum: Tech
Topic: LF Harris Conrods.
Replies: 52
Views: 7747
Flag: England

Re: LF Harris Conrods.

Whose shells are you using Mr Ampshire?