Search found 396 matches

by Sly Dixon
Wed Feb 07, 2018 4:41 am
Forum: Tech
Topic: Mikuni for B44 - too big?
Replies: 25
Views: 3108
Flag: New Zealand

Re: Mikuni for B44 - too big?

Got a Wassell Amal copy on my B44SS and it is a brilliant starter and it idles well. Ive fitted an air lever and its a one or at most two kick start on a cold morning. The mazac slide is wearing quite quickly though so I might go to a hard anodized one before too long.
by Sly Dixon
Fri Jan 12, 2018 10:25 pm
Forum: Tech
Topic: N00b amal carb question.
Replies: 7
Views: 1258
Flag: New Zealand

Re: N00b amal carb question.

I put a lever on and use the air slide daily. Its a far more subtle contol than a tickler which I find often floods the motor requiring decompressed kicks to clear. I get a very high first kick start result from cold and struggle to understand why it isnt standard equipment.
by Sly Dixon
Thu Dec 07, 2017 11:56 am
Forum: Tech
Topic: Accelerator pump carb
Replies: 27
Views: 3091
Flag: New Zealand

Re: Accelerator pump carb

Probably original 1975 carbs so not young but these were new needles and jets. Possibly aftermarket in some cases but it shows you have to be careful that you get what it says on the package.
by Sly Dixon
Tue Dec 05, 2017 10:53 pm
Forum: Tech
Topic: Accelerator pump carb
Replies: 27
Views: 3091
Flag: New Zealand

Re: Accelerator pump carb

I had an 860GT Ducati with PHF carbs. In fact I had two at different times. The first one was in Sydney in the early 80's when you could still buy leaded gas. The throttle pumps worked beautifully and gave the bike a real snap off the throttle. That bike was stolen and half a lifetime later I bought...
by Sly Dixon
Tue Oct 31, 2017 9:39 pm
Forum: Tech
Topic: B44 performance
Replies: 25
Views: 5096
Flag: New Zealand

Re: B44 performance

I had jack hammer vibration on my B44 which turned out to be due to the fitting of a modified B50 big end without re balancing the crank. Statically re balanced it to 60% and it is now quite manageable and quite smooth above 60mph.
by Sly Dixon
Tue Oct 24, 2017 10:38 pm
Forum: Project bikes
Topic: B44SS
Replies: 195
Views: 29365
Flag: New Zealand

Re: B44SS

I can't claim to be that tough I'm afraid! Yes the Cold Kiwi is still a regular thing although I value my comfort too much to take part myself. As for Stones Ginger Wine you are a brave fellow indeed! Many the savage hangover I had from that in my youth. I vaguely remember wrestling with a sleeping ...
by Sly Dixon
Sun Oct 22, 2017 8:19 pm
Forum: Project bikes
Topic: B44SS
Replies: 195
Views: 29365
Flag: New Zealand

Re: B44SS

Ha! The damage was all to my poor bum which but for the sheepskin would have fallen off! It was a spectacular day very unlike the return journey which was gusting 50 knots and raining on that same stretch. The poor old sheepskin will never be the same though as the bloody oil tank cap leaked and spr...
by Sly Dixon
Sun Oct 22, 2017 8:36 am
Forum: Project bikes
Topic: B44SS
Replies: 195
Views: 29365
Flag: New Zealand

Re: B44SS

Thought I right a coda to this stream around a year after my last post. There have been several more issues with this machine, fixing a crack in the frame amongst host of other issues but I've finally decided it was in a condition for the ultimate test. This involved riding the bike to Wellington an...
by Sly Dixon
Fri Oct 13, 2017 11:22 am
Forum: Tech
Topic: It Lives !!!!!!
Replies: 11
Views: 1605
Flag: New Zealand

Re: It Lives !!!!!!

Sadly it is permanent if its chrome and is a sign of excessive leaness usually. If its stainless you can get rid of it with 600 or finer wet and dry.
by Sly Dixon
Wed Oct 11, 2017 3:07 am
Forum: Tech
Topic: B50 MX sudden death!
Replies: 41
Views: 5725
Flag: New Zealand

Re: B50 MX sudden death!

Easy start is ether in a can and will pink like crazy. Not something any motor in reasonable working order should require. I think you seized the bike and that you have no option but to flog it or pull it apart and do a proper overhaul. To be brutality frank these are not bikes for those looking for...
by Sly Dixon
Mon Oct 02, 2017 3:58 am
Forum: Tech
Topic: Kick start not returning
Replies: 26
Views: 2929
Flag: New Zealand

Re: Kick start not returning

Make sure the carb slide is fully seated as if it props open a bit it can kick like a mule.
by Sly Dixon
Wed Sep 27, 2017 5:28 am
Forum: Tech
Topic: Crack in the frame
Replies: 10
Views: 1670
Flag: New Zealand

Re: Crack in the frame

Feels very different to ride unsurprisingly. All the roughness at low speeds in higher gears is gone and the vibration is substantially reduced. Amazed it took me so long to spot it but bloody glad it didnt give way on some of the long distance trips i did!
by Sly Dixon
Mon Sep 25, 2017 11:52 pm
Forum: Tech
Topic: Crack in the frame
Replies: 10
Views: 1670
Flag: New Zealand

Re: Crack in the frame

Cheers :) measured the gap and discovered there is about 2mm clearance between the crankcase and the frame so will shim accordingly. Ill be really interested to see how this affects the riding experience because whilst there was no feeling of insecurity or handling wobbles there was a rather strange...
by Sly Dixon
Sun Sep 24, 2017 11:38 am
Forum: Tech
Topic: Crack in the frame
Replies: 10
Views: 1670
Flag: New Zealand

Re: Crack in the frame

Yes your advice tallies with what I heard elsewhere. Ended up replacing a section and gaitering it with tube machined to fit. Well fluxed and brazed so hopefully once fettled won't look too bad and should be strong enough for the job. Thanks for the helpful input.
by Sly Dixon
Sat Sep 23, 2017 6:00 am
Forum: Tech
Topic: Crack in the frame
Replies: 10
Views: 1670
Flag: New Zealand

Re: Crack in the frame

Pulled the motor out and heated up the lug with the gas. Managed to wirebrush off the globs of brass and move the lug out of the way. My current thought is to take it to the welding specialist man and get him to TIG weld it.
by Sly Dixon
Sat Sep 23, 2017 12:52 am
Forum: Tech
Topic: Crack in the frame
Replies: 10
Views: 1670
Flag: New Zealand

Re: Crack in the frame

So can I assume then that the lug is simply sweated on and if I remove a section of the pipe that contains the lug I can remove it with the torch and then replace it on the new section? I'm thinking about using mild steel hydraulic pipe as a replacement. It should be malable enough and won't temper ...
by Sly Dixon
Fri Sep 22, 2017 6:28 am
Forum: Tech
Topic: Crack in the frame
Replies: 10
Views: 1670
Flag: New Zealand

Crack in the frame

Whilst doing a routine check on the tightness of the primary chain I discovered much to my horror a crack through the primary side of the frame cradle just behind the lug that takes the through bolt. Some retard has brazed it up which I why I didn't spot it before now. Now of course the brass has fa...
by Sly Dixon
Fri Sep 15, 2017 7:47 am
Forum: Tech
Topic: Fitting a Chronometric
Replies: 8
Views: 1470
Flag: New Zealand

Re: Fitting a Chronometric

Yes was too long. Buzzed it off on the grind stone and all seems well.
by Sly Dixon
Thu Sep 14, 2017 10:06 pm
Forum: Tech
Topic: Fitting a Chronometric
Replies: 8
Views: 1470
Flag: New Zealand

Re: Fitting a Chronometric

Ill check that thanks.
by Sly Dixon
Thu Sep 14, 2017 1:50 am
Forum: Tech
Topic: Fitting a Chronometric
Replies: 8
Views: 1470
Flag: New Zealand

Re: Fitting a Chronometric

Yes usual rotation it just starts at 1o'clock rather than 7o'clock. The Kms thing is oddly disconcerting and not because it is strange. Both my cars have kms and the V50 I just sold was metric too. Its just rather odd on the BSA for which up until now speed has been represented by a wildly flickerin...
by Sly Dixon
Wed Sep 13, 2017 7:54 am
Forum: Tech
Topic: Fitting a Chronometric
Replies: 8
Views: 1470
Flag: New Zealand

Fitting a Chronometric

Finally had enough of trying to get a magnetic Smiths speedo to work so have fitted a lovely 50's chrono. It reads Kilometres so takes a bit of getting used to but that is the official measure here and at last I have a speedo that actually tells me my speed!
by Sly Dixon
Thu Sep 07, 2017 9:40 pm
Forum: Tech
Topic: AAU bolt
Replies: 8
Views: 1548
Flag: New Zealand

Re: AAU bolt

Noted, forelock touched.
by Sly Dixon
Wed Sep 06, 2017 9:49 pm
Forum: Tech
Topic: AAU bolt
Replies: 8
Views: 1548
Flag: New Zealand

Re: AAU bolt

Yep as above at 1/4" its a pitch difference only.
by Sly Dixon
Sat Aug 26, 2017 2:54 am
Forum: Tech
Topic: One job tool
Replies: 4
Views: 967
Flag: New Zealand

One job tool

Having fitted the wider diameter shocks to the B44 I needed to reposition them slightly to stop them interfering with the chain guard that had started to fall apart. I'd bored the steel liner to the bottom bush from its original 10mm to 9/16" in order to get it to fit and all seemed good till I trie...
by Sly Dixon
Fri Aug 18, 2017 1:26 am
Forum: Tech
Topic: B44 ignition timing
Replies: 30
Views: 4659
Flag: New Zealand

Re: B44 ignition timing

Hot dang youse folks makes it komplikated. Pictures are mighty purty though!
by Sly Dixon
Mon Aug 14, 2017 9:42 pm
Forum: Tech
Topic: B44VS Tank Dent Removal
Replies: 17
Views: 2317
Flag: New Zealand

Re: B44VS Tank Dent Removal

It's seriously specialist work if it is aluminium as it work hardens very quickly. I believe it requires constant anealing and with ally you are anealing one second and sweeping up the hardened drops of aluminium the next. I remember the metalwork teacher at school teaching us thatnyou soot the surf...
by Sly Dixon
Mon Aug 14, 2017 7:53 am
Forum: Tech
Topic: B44VS Tank Dent Removal
Replies: 17
Views: 2317
Flag: New Zealand

Re: B44VS Tank Dent Removal

Oh is this an aluminium tank?
by Sly Dixon
Mon Aug 14, 2017 12:24 am
Forum: Tech
Topic: B44VS Tank Dent Removal
Replies: 17
Views: 2317
Flag: New Zealand

Re: B44VS Tank Dent Removal

Potted panel is the way to fix a small dent like that but if you are determined to panel beat it then you need to make a dolly on a stick. This is a lump of steel (a 1" ball will work) on a rod bent to allow access to the appropriate internal dent. You then lift the dent out by hammering from the ou...
by Sly Dixon
Wed Aug 09, 2017 12:26 am
Forum: Tech
Topic: B44 ignition timing
Replies: 30
Views: 4659
Flag: New Zealand

Re: B44 ignition timing

34 degrees is way too much advance for a B44. There is a missprint in one of the workshop manuals that confuses ths B25 and the B44. The B44 is supposed to have 28 degrees static advance. This makes sense of the 12 degree ATU in that 12 on the cam is 24 on the crank leaving you 4 degrees advance on ...
by Sly Dixon
Tue Aug 08, 2017 12:42 am
Forum: Tech
Topic: Pushrod length?
Replies: 31
Views: 4778
Flag: New Zealand

Re: Pushrod length?

I'd be tempted to modify the key rather than the key ways if that is a possibility?
by Sly Dixon
Sat Aug 05, 2017 11:35 pm
Forum: Tech
Topic: Still bloody Pinking!
Replies: 17
Views: 2992
Flag: New Zealand

Re: Still bloody Pinking!

Spent yesterday touring all over the city and am delighted to say that the bike is going really well. Having had no other BSA unit single experience i had no idea what one in proper fettle went like. Every improvement has resulted in a more tractable and user friendly machine but now I have a bike t...
by Sly Dixon
Sun Jul 23, 2017 11:37 pm
Forum: Tech
Topic: B50 starting niggle
Replies: 18
Views: 3246
Flag: New Zealand

Re: B50 starting niggle

Whilst id still check how clean yur points are and that the plug isnt too sooty (modern unleaded produces incredibly low resistant carbon) I never use the tickler on my bike. The air lever works brilliantly for a cold start and if I tickle it as often as not it floods.
by Sly Dixon
Sat Jul 22, 2017 10:17 pm
Forum: Tech
Topic: B50 starting niggle
Replies: 18
Views: 3246
Flag: New Zealand

Re: B50 starting niggle

My B44 did that with a dodgy spark plug.
by Sly Dixon
Wed Jul 12, 2017 10:51 pm
Forum: Tech
Topic: Still bloody Pinking!
Replies: 17
Views: 2992
Flag: New Zealand

Re: Still bloody Pinking!

I think it might be sorted Beat (fingers crossed). Its set at 28 degrees now and seems to operate fine under load and at speed. I gave it a fairly hard ride the other day to check it out and the only time it pinked was when cruising up to a red light preparing to stop it changed to green and I throt...
by Sly Dixon
Sat Jul 08, 2017 3:32 am
Forum: Tech
Topic: Still bloody Pinking!
Replies: 17
Views: 2992
Flag: New Zealand

Re: Still bloody Pinking!

Good call Ghislain! I had replaced the original ATD that the bike came with because I had modified it from 12 to 15 degrees advance which was fine when I thought the static advance was to be set at 36 degrees. Turned out my version of the workshop manual had an editing fault and they'd put the B25 s...
by Sly Dixon
Fri Jul 07, 2017 1:27 am
Forum: Parts for sale
Topic: B44 Crank For Sale.
Replies: 3
Views: 1196
Flag: New Zealand

Re: B44 Crank For Sale.

Do you still have the B44 Crank?
by Sly Dixon
Fri Jul 07, 2017 1:23 am
Forum: Tech
Topic: Still bloody Pinking!
Replies: 17
Views: 2992
Flag: New Zealand

Re: Still bloody Pinking!

Yes I'm thinking its a mixture issue as I've replaced or renovated pretty much everything to do with the timing and it makes no difference. I've tried 98 octane fuel but that doesn't do anything and It pinks throughout the rev range so it isn't the ATD. My other thought was to try a colder plug but ...
by Sly Dixon
Thu Jul 06, 2017 12:34 pm
Forum: Tech
Topic: Still bloody Pinking!
Replies: 17
Views: 2992
Flag: New Zealand

Re: Still bloody Pinking!

No that static full advance as in bob weights out. With the bob weights in it will be around 4 degrees advance. Definitley no guessing as I used a piston stop to establish tdc and a timing wheel on the end of the crank. The manual calles for 28 degrees and even at 24 to 26 its still pinking when hot.
by Sly Dixon
Thu Jul 06, 2017 3:59 am
Forum: Tech
Topic: Still bloody Pinking!
Replies: 17
Views: 2992
Flag: New Zealand

Still bloody Pinking!

I've thought that I've sussed this issue a number of times but it keeps coming back. My 1970 B44SS has a new piston and barrel and a rebuilt cylinder head. I've renovated the ATD and have checked that the static timing is 28 degrees and have now retarded it to about 26 degrees. Yet as soon as it is ...
by Sly Dixon
Wed May 31, 2017 1:36 pm
Forum: Tech
Topic: Pinking
Replies: 20
Views: 3454
Flag: New Zealand

Re: Pinking

True, I turn the crank backward and forward onto the piston stop and mark both points either side then divide the resulting gap in half to establish tdc.obviously the higher you set the piston stop the closer the resulting gap :grin: