Search found 73 matches

by Mike A
Sun Apr 05, 2020 1:54 pm
Forum: Tech
Topic: Change of carb
Replies: 37
Views: 5202
Flag: England

Re: Change of carb

If your going with Mikuni I would strongly recommend contacting http://www.motocarb.com/ ,a UK company, they have everything you might need and happy to advise, certainly helped me out in the past.
by Mike A
Mon Mar 23, 2020 9:58 pm
Forum: Tech
Topic: Best Electronic Ignition
Replies: 16
Views: 488
Flag: England

Re: Best Electronic Ignition

With Electrex certainly remove the points assembly,not the cam itself though! if I remember correctly (been a few years since I did mine) you have to screw a bolt into the end of the cam to replace the fitting of the points, like a blanking plug, stick a bit of thread sealant on it to help keep ever...
by Mike A
Sun Mar 22, 2020 9:16 am
Forum: Project bikes
Topic: 74 TR5 MX Project For Ken
Replies: 19
Views: 746
Flag: England

Re: 74 TR5 MX Project For Ken

Thanks, the tank is a late 50s Enfield works trials tank, to be honest I've never really liked the BSA MX/scrambler tank, too square looking for me, thats just my opinion though, I'm sure there's many that like it, but thats the best thing about building your own bike, use what works for you, not wh...
by Mike A
Sat Mar 21, 2020 10:54 am
Forum: Project bikes
Topic: 74 TR5 MX Project For Ken
Replies: 19
Views: 746
Flag: England

Re: 74 TR5 MX Project For Ken

When I'm building a bike I find its helpful to get inspiration from many different bikes, taking ideas from here and there and imagining how they would work together, here's a couple of pics of my Victor, you might see something you could use. https://live.staticflickr.com/65535/49681707343_1fea23f8...
by Mike A
Fri Feb 07, 2020 11:54 pm
Forum: Tech
Topic: BSA B44 Race Ignition
Replies: 7
Views: 563
Flag: England

Re: BSA B44 Race Ignition

I have the Electrex system fitted on my Victor scrambler, the engine has just about every improvment/modification you can make to these engines, courtesy of RTS and PES, the old girl starts first time every time and runs sweet throughout the rev range, never let me down yet. :thumb
by Mike A
Sun Jan 19, 2020 2:00 pm
Forum: News
Topic: Exeter Trial 2020
Replies: 7
Views: 809
Flag: England

Re: Exeter Trial 2020

We used to go and spectate at Simms many years ago, I've not been back for a while now, maybe I should give it a go, well done on the clean sweep :thumb
by Mike A
Tue Nov 19, 2019 8:39 pm
Forum: Tech
Topic: B44 enduro, frame differences?
Replies: 6
Views: 833
Flag: England

B44 enduro, frame differences?

My Victor scrambler is built from a '67 Victor Enduro frame and a 69 Victor Special engine, well the engine started life as a VS but its a world away from that now, what I'm wondering though is just what differences the Enduro frame had from the standard road model, if any at all. https://live.stati...
by Mike A
Tue Nov 12, 2019 1:47 pm
Forum: Project bikes
Topic: Starfire 441
Replies: 77
Views: 10179
Flag: England

Re: Starfire 441

[its basically a scrambler but used really for hillclimbs as we're somewhat lucky here in the West Country/Southwest with choice of venues. Mike where do you go hill-climbing? I'm in Bristol and have done Prescott once on my B50 but am interested in more... Hi, I'm in Cheltenham so yes Prescott is ...
by Mike A
Mon Sep 09, 2019 4:49 pm
Forum: Project bikes
Topic: Starfire 441
Replies: 77
Views: 10179
Flag: England

Re: Starfire 441

Mike, I guess the seat issue will only be known once I use the bike. Did you change yours back to standard or find an alternative? I fitted a B50 scrambles seat in the end. the bike has had a couple of incarnations during the initial build, its basically a scrambler but used really for hillclimbs a...
by Mike A
Sat Sep 07, 2019 8:32 am
Forum: Project bikes
Topic: Starfire 441
Replies: 77
Views: 10179
Flag: England

Re: Starfire 441

With reference to the seat, I fitted the same to my Victor for a while, soon had to change it because anything over a couple of miles was really uncomfortable, and Im a pretty average shape :grin: as for the swingarm, good choice, got mine from Terry a couple of years ago, good bearings and the plat...
by Mike A
Tue Mar 12, 2019 9:53 am
Forum: Parts & Bikes wanted
Topic: billet rocker oil feed pipe
Replies: 2
Views: 1224
Flag: England

Re: billet rocker oil feed pipe

Many thanks for the info, part duly ordered :thumb
by Mike A
Fri Mar 08, 2019 8:52 pm
Forum: Parts & Bikes wanted
Topic: billet rocker oil feed pipe
Replies: 2
Views: 1224
Flag: England

billet rocker oil feed pipe

does anyone know where I might get a billet rocker oil feed pipe for my B44, the only one's I can find are for twins, I'm sure I've seen singles fitted with them so they must be out there somewhere.
by Mike A
Fri Feb 22, 2019 4:10 pm
Forum: Project bikes
Topic: B44 scrambler
Replies: 4
Views: 1806
Flag: England

Re: B44 scrambler

Thanks Tom, the swingarm is a metisse item and the muffler is from Armours LTD in Bournemouth, I'll look out for some vented caps, thanks for the info.
by Mike A
Fri Feb 22, 2019 12:24 pm
Forum: Project bikes
Topic: B44 scrambler
Replies: 4
Views: 1806
Flag: England

B44 scrambler

I bought this thing a few years ago, it had been brought back from the US, well, what was left of it.. the forks were solid rust inside, and the oil pump had seized due to lack of oil! basically a complete dog, all that was useful from it was the frame, the crank cases, the crank and the head. https...
by Mike A
Sun Feb 03, 2019 10:18 pm
Forum: Parts & Bikes wanted
Topic: Wanted BSA b44 +20
Replies: 3
Views: 1227
Flag: England

Re: Wanted BSA b44 STD piston or +20

I've got a spare brand new (still boxed) std JP piston assembly for a B44, don't suppose I'll be using it as I've gone with one of Mark Cooks pistons.
by Mike A
Mon Jan 14, 2019 6:31 pm
Forum: Tech
Topic: Bantam front hub for scrambles?
Replies: 7
Views: 1908
Flag: England

Re: Bantam front hub for scrambles?

Yes, not a problem, just PM me :grin:
by Mike A
Mon Jan 14, 2019 1:44 pm
Forum: Tech
Topic: Bantam front hub for scrambles?
Replies: 7
Views: 1908
Flag: England

Re: Bantam front hub for scrambles?

Just as an update I've now found a B50 hub so hopefully problem solved...yes it was hot wasn't it, on the way out we stopped to give the chickens by the gate our water, their bowls were bone dry, poor little critters.
by Mike A
Fri Jan 11, 2019 9:24 pm
Forum: Tech
Topic: Bantam front hub for scrambles?
Replies: 7
Views: 1908
Flag: England

Re: Bantam front hub for scrambles?

Thanks again Grouty, unfortunately I've got a family thing on the sunday but I'm off to watch Redmarley on Monday so not a wasted Easter! :grin: hopefully we will cross paths sometime over the summer, might you be at Combe Martin later in the year?
by Mike A
Thu Jan 10, 2019 5:09 pm
Forum: Tech
Topic: Bantam front hub for scrambles?
Replies: 7
Views: 1908
Flag: England

Bantam front hub for scrambles?

with regards to my intended foray into competition this year it seems that the early XL250 forks and wheel I currently have fitted on my Victor wouldn't be acceptable under AMCA rules...a real shame because they certainly look the part and it handles just fine. so with that in mind I've had a root a...
by Mike A
Wed Jan 09, 2019 8:18 pm
Forum: Tech
Topic: Transponder location
Replies: 2
Views: 999
Flag: England

Re: Transponder location

Thanks Grouty, I'll give that a go, with the cost of the things it pays to double up on the fixing I suppose :thumb
by Mike A
Tue Jan 08, 2019 12:32 pm
Forum: Tech
Topic: Transponder location
Replies: 2
Views: 999
Flag: England

Transponder location

a question for you scramblers etc out there, where do you mount your transponder, if you use one? I'm intending to start competing this year and was wondering if it needs to be at the top of the forks or is there a better place?
by Mike A
Sat Sep 01, 2018 1:02 pm
Forum: Tech
Topic: sealing header pipe at head
Replies: 36
Views: 12572
Flag: England

Re: sealing header pipe at head

I just flared the end of mine, turned up a bit of Ally into a shallow cone to use as a drift, heated the end of the pipe and a few light taps later one nice tight fitting pipe, it seemed the obvious answer, no big engineering job needed or anything like that, I've had no problems in the last six mon...
by Mike A
Mon Aug 14, 2017 8:58 am
Forum: Tech
Topic: B44VS Tank Dent Removal
Replies: 17
Views: 3335
Flag: England

Re: B44VS Tank Dent Removal

I do like the idea of your "hydraulic device" very inventive, I think my only concern with it would be would the grease gun stay on the nipple? I'm guessing a fair amount of pressure would be needed to push out the dents and it could possibly pop the gun off...I'd love to think it would work though,...
by Mike A
Thu Aug 10, 2017 12:50 pm
Forum: Tech
Topic: Pushrod length?
Replies: 31
Views: 6647
Flag: England

Re: Pushrod length?

I was joking Hwan! I've always got on well with Triumph twins, in fact I've just finished rebuilding a T120 engine for my son's Rickman Mk3, starts first kick every time (an Electrex system that actually does what it's supposed to)...seriously though I've got too much effort money and time invested ...
by Mike A
Thu Aug 10, 2017 7:28 am
Forum: Tech
Topic: Pushrod length?
Replies: 31
Views: 6647
Flag: England

Re: Pushrod length?

It's a wonder these engines ever ran at all! I wonder if I can get a little Triumph twin in the frame...at least I can understand them! ;-)
by Mike A
Wed Aug 09, 2017 10:57 am
Forum: Tech
Topic: B44 ignition timing
Replies: 30
Views: 6265
Flag: England

Re: B44 ignition timing

Many thanks for all the help from everyone, it really is appreciated, when I rebuild the engine I'll set it to 28 deg(with the dreaded wheel ;-) ) and see where we are from there, cheers all..
by Mike A
Wed Aug 09, 2017 6:33 am
Forum: Tech
Topic: B44 ignition timing
Replies: 30
Views: 6265
Flag: England

Re: B44 ignition timing

I should have said I'm using the Electrex World set up so no ATU or points or anything like that, just the 34 deg that they specify, I do agree it does seem like a lot of advance however... MM many thanks for your calcs, you didnt have to go to all that trouble, just wish I could understand your equ...
by Mike A
Tue Aug 08, 2017 10:25 pm
Forum: Tech
Topic: B44 ignition timing
Replies: 30
Views: 6265
Flag: England

Re: B44 ignition timing

Thanks for the offer, I'll check the length of stroke tomorrow, I'm not sure that a degree wheel is as accurate as some folk think, seeing as you have to start off with TDC anyway and then rely on a printed bit of plastic somehow attached to your crank end and measured by a bit of bent wire (usually...
by Mike A
Tue Aug 08, 2017 9:20 pm
Forum: Tech
Topic: B44 ignition timing
Replies: 30
Views: 6265
Flag: England

B44 ignition timing

does anyone know what the 34 degrees BTDC for the B44 equates to in height of piston down the barrel from TDC ? I dont like fiddling around with timing discs and as the head is off at the moment in means I can get a far more accurate setting if I know the depth of the piston at 34 BTDC.
by Mike A
Tue Aug 08, 2017 1:44 pm
Forum: Tech
Topic: Rear chain length (no. of links)
Replies: 18
Views: 3859
Flag: England

Re: Rear chain length (no. of links)

Maybe easier to just buy a 120 link (usually the longest you can buy) 520 pitch chain and just knock a few links out to suit, got mine for about £28 as I remember, like Minety said you may need a half link in there possibly as well but they're cheap enough.
by Mike A
Tue Aug 08, 2017 9:04 am
Forum: Tech
Topic: Pushrod length?
Replies: 31
Views: 6647
Flag: England

Re: Pushrod length?

M & M - yes thanks, that is what i was intending to say - i couldn't remember the difference between B44 and B50 cam wheels, I've got personnel things happening at the moment so no shed time, messing/remembering ... Cooky is the man who would know for certain as i seem to have had this conversation...
by Mike A
Mon Aug 07, 2017 10:06 pm
Forum: Tech
Topic: Pushrod length?
Replies: 31
Views: 6647
Flag: England

Re: Pushrod length?

just changing the cam wheels over may not be straight forward. as the b44 has a wide keyway and the b50 has the narrow keyway. Bang on Midgie! I have them both in front of me now, your right, definitely different, I have a friend who has a machine shop and also ride's so I will likely pay him a vis...
by Mike A
Mon Aug 07, 2017 1:29 pm
Forum: Tech
Topic: Pushrod length?
Replies: 31
Views: 6647
Flag: England

Re: Pushrod length?

Ah,yes, I think I see what your getting at, the MX wheel is considerably thinner than the original, would the answer be to swap the gear wheels over?

https://drive.google.com/file/d/0B9t9c_ ... sp=sharing
by Mike A
Mon Aug 07, 2017 11:30 am
Forum: Tech
Topic: Pushrod length?
Replies: 31
Views: 6647
Flag: England

Re: Pushrod length?

What makes the cam gear incorrect? I'm using a B50 MX cam in a B44 to get the best out of the head tuning work I've had done, and also the crank rebuild, oil pump, gearbox and clutch improvements, I've had it on good authority it's the best thing to do..Yes it does have the correct flat followers, I...
by Mike A
Sat Aug 05, 2017 8:58 am
Forum: Tech
Topic: Pushrod length?
Replies: 31
Views: 6647
Flag: England

Re: Pushrod length?

minetymenace wrote:Ummm, too much end float on the cam or serious wear on the cam follower bores, something ain't right.
Read my edit, sorry, should have included it originally! :(
by Mike A
Sat Aug 05, 2017 8:44 am
Forum: Tech
Topic: Pushrod length?
Replies: 31
Views: 6647
Flag: England

Re: Pushrod length?

any pictures ?? still something to learn on it...... beat <209 Dont know if this will work, my first time trying Google pictures, the photo shows the marks on the pinion where the follower has rode up onto the shoulder, it's not as bad as it looks and would probably polish out, also you can just ab...
by Mike A
Fri Aug 04, 2017 10:24 pm
Forum: Tech
Topic: Upload pics
Replies: 20
Views: 59284
Flag: England

Re: Upload pics

I tried the Google photo app thing, got my photos uploaded to an album, tried right clicking on a photo to get an IMG code...nothing! they dont make these things easy do they!
by Mike A
Fri Aug 04, 2017 10:53 am
Forum: Tech
Topic: Pushrod length?
Replies: 31
Views: 6647
Flag: England

Re: Pushrod length?

Well, as promised I had the engine out this morning, stripped the top end off and everything is perfect, valves are spotless and scratch/dent free as is the piston, so I went deeper...and it looks like Hwan hit the nail on the head, it seems the inlet follower had indeed been riding up on the cam sh...
by Mike A
Thu Aug 03, 2017 8:37 pm
Forum: Tech
Topic: Pushrod length?
Replies: 31
Views: 6647
Flag: England

Re: Pushrod length?

We shall find out tomorrow when the engine's out and the head's off, it'll be interesting to see what clashing with what...because it's occasional a sticky valve does seem possible, I'll keep you posted..
by Mike A
Thu Aug 03, 2017 2:09 pm
Forum: Tech
Topic: Pushrod length?
Replies: 31
Views: 6647
Flag: England

Re: Pushrod length?

I'm going to have the engine out and in it's stand on the bench I think to work through these problems, thanks for your suggestions, they do sound feasible and gives me something to work on, regarding the valve conversion this was done by RTS (who supplied the cam) so I'm confident that all's fine w...