Author Topic: What have you done with your bike/s today?  (Read 171341 times)

Offline muskrat

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Re: What have you done with your bike/s today?
« Reply #2655 on: 05.01. 2023 17:37 »
G'day Worty.
I vaguely remember a member writing about crank balance that way. May have been RD  *dunno2*
I wish I had a pic of my racing A7SS flywheel. Narrowed by 1/4" a side and drilled like Swiss cheese  *eek* No way of doing that through the sump hole (or a job for a gynecologist)  *sarcastic* Wouldn't pull the skin off a rice pudding but revved to 8K.
Cheers
'51 A7 plunger, '57 A7SS racer now a A10CR, '78 XT500, '83 CB1100F, 88 HD FXST, 2000 CBR929RR ex Honda Australia Superbike .
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Muskys Plunger A7

Offline Worty

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Re: What have you done with your bike/s today?
« Reply #2656 on: 05.01. 2023 17:43 »
Just came across it and couldn't believe it was in a service manual??  Seems such a hit and miss way of balancing the crank, and such a bodge up to tap the hole and screw a bolt in there to correct mistakes.  Also, how are you supposed to know how much material to remove - jeez, could end up in all sorts of Hell.  I would imagine MWAS et al would have some sort of gauge to measure - surely?? *eek* *eek* *eek*
Current Bikes😎
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Offline muskrat

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Re: What have you done with your bike/s today?
« Reply #2657 on: 05.01. 2023 17:46 »
G'day Worty.
I know the book Tuning for Speed has a table of material weight to size/depth of hole. That's what I used.
Cheers
'51 A7 plunger, '57 A7SS racer now a A10CR, '78 XT500, '83 CB1100F, 88 HD FXST, 2000 CBR929RR ex Honda Australia Superbike .
Australia
Muskys Plunger A7

Offline Worty

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Re: What have you done with your bike/s today?
« Reply #2658 on: 05.01. 2023 18:09 »
G'day Worty.
I know the book Tuning for Speed has a table of material weight to size/depth of hole. That's what I used.
Cheers

Jeez - I'm both impressed and stunned at the same time. *dunno* *dunno* *dunno*
Current Bikes😎
Kwaka W650
'61 Flash

Past Bikes👍
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Offline RDfella

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Re: What have you done with your bike/s today?
« Reply #2659 on: 05.01. 2023 18:43 »
Or, if you look up the sg of steel, you can work out the size of hole required yourself .....
Pic (I've posted before) of my last vee twin crank. Don't consider those tapped holes are a 'bodge'.......  Very handy for altering balance ratio without stripping engine down.
'49 B31, '49 M21, '53 DOT, '58 Flash, '62 Flash special, '00 Firestorm, Weslake sprint bike.

Offline Worty

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Re: What have you done with your bike/s today?
« Reply #2660 on: 05.01. 2023 19:22 »
Nicely done RD!  The difference is that, in my mind, it seems like a weird way to balance a crank, but to MWASs like yourself, it's engineering genius.  Do you centrepunch the bolts to stop them backing out (that would cause some issues).  Can you imagine RM doing stuff like this? *eek* *eek* *pull hair out* *pull hair out* 
Current Bikes😎
Kwaka W650
'61 Flash

Past Bikes👍
'49 B31
'59 BMW R60
Yam FS1-E, YB100, RS100, RD200DX,250DX,350B, XS750
MZ250

Offline Worty

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Re: What have you done with your bike/s today?
« Reply #2661 on: 12.01. 2023 15:58 »
Planning a 400m+ round trip to Wales next weekend.  To inject some interest into a 'holiday' I'm thinking of sending the wife on ahead of me and working my way down via the backroads.  The place we're staying is 185m from us near Aberystwyth (SRM country), and Sue's sister lives in mid-Wales.  Whilst she's away shopping, I can explore new territory.

Downside is that it'll be cold and probably a bit wet in Wales, so I'm breaking the journey with a stopover at my brother's place in Stafford.  I think RoyC was in Stafford but not heard from him on the Forum for a while.

Anyhow, lots of warm clothing, I have heated grips on the bike, well oiled chain and a tank of fuel and I'm away.  Pity the tank only holds about two thimblefuls of fuel, will have to stop three times on the round trip to refill??
Current Bikes😎
Kwaka W650
'61 Flash

Past Bikes👍
'49 B31
'59 BMW R60
Yam FS1-E, YB100, RS100, RD200DX,250DX,350B, XS750
MZ250

Offline RDfella

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Re: What have you done with your bike/s today?
« Reply #2662 on: 12.01. 2023 16:55 »
On the other hand, you could put the bike in a van and travel in comfort.
I haven't ridden a bike for months now - wind and rain practically every day. Apparently the weather's warmer than usual - well, it may be but 10* ain't warm enough for me.
'49 B31, '49 M21, '53 DOT, '58 Flash, '62 Flash special, '00 Firestorm, Weslake sprint bike.

Offline Worty

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Re: What have you done with your bike/s today?
« Reply #2663 on: 12.01. 2023 17:32 »
On the other hand, you could put the bike in a van and travel in comfort.
I haven't ridden a bike for months now - wind and rain practically every day. Apparently the weather's warmer than usual - well, it may be but 10* ain't warm enough for me.

Nah, I'm pretty 'ard mate.  Anyhow, 120m in several legs wrapped up warm isn't too bad.  Having said that, if the weather really gets bad, I may revise my plans - wifey can spend a week in peace without me.
Current Bikes😎
Kwaka W650
'61 Flash

Past Bikes👍
'49 B31
'59 BMW R60
Yam FS1-E, YB100, RS100, RD200DX,250DX,350B, XS750
MZ250

Offline dave55

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Re: What have you done with your bike/s today?
« Reply #2664 on: 12.01. 2023 18:03 »
If you went on the plunger it would be nicely run in  *smile*
BSA Bantam D7 175  1961
BSA A10 650 Golden Flash 1955 Plunger
Suzuki GSX1400 2003

Offline Worty

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Re: What have you done with your bike/s today?
« Reply #2665 on: 12.01. 2023 18:23 »
If you went on the plunger it would be nicely run in  *smile*

Is that GB's plunger?? *dunno* *dunno*
Current Bikes😎
Kwaka W650
'61 Flash

Past Bikes👍
'49 B31
'59 BMW R60
Yam FS1-E, YB100, RS100, RD200DX,250DX,350B, XS750
MZ250

Offline dave55

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Re: What have you done with your bike/s today?
« Reply #2666 on: 12.01. 2023 21:48 »
Today i started doing a bit of work on my Modern Bsa.....1960 swing arm GF . First job off with tank, then carb. Slide and bore looked to have wear probably due to having no air filter just an open venturi . Found choke slide missing altogether ??? *eek* 
Sent carb to Alverstoke Resto for sleeving and ordered new choke kit from Burlens........Cup of tea
Then off with center stand which previous owner had only fit with bolts instead of correct rod and no tube or spacers, this had twisted the stand , *work* required use of hot spanner and large vice to tweek and pull here and there until it looked reet on flat bench. Fitted up under bike and measured up for spacers etc and new center tube, made new fixing rod with split pins either side . All fits nice and square and goes up and down with hardly and unwanted movement or rocking.
Removed stand again , put some primer on all bits ready for black gloss tommorrow  *beer*
BSA Bantam D7 175  1961
BSA A10 650 Golden Flash 1955 Plunger
Suzuki GSX1400 2003

Offline Worty

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Re: What have you done with your bike/s today?
« Reply #2667 on: 31.01. 2023 11:45 »
Completed my epic ride to Wales via Stafford - nearly 500m in total in four legs (793 km).  From Yorkshire across the Derbyshire Peaks was bloody cold (made a cardboard 'gilet' to fit under my many layers - worked well!).  Temp was about 0-1C, and there was snow and frost on the side of the road!!  With windchill (no screen) probably about -6C-ish.  Stafford to Wales wasn't bad, but it's difficult to have a pee when you've got so many layers on.  Wales back to Stafford - cold and rain (fishing leggings were brilliant and so was Helly Hanson jacket).  Stafford back to Yorks - cold but sunny at times.  Bike had to be jetwashed as it was caked in cack.  Only thing I took was some spray grease for the chain - gave it a blast every leg of the journey.

So, Kwaka W650, never missed a beat, stood out in the cold and wet for three days and fired up on the button.  Everything worked, even when jetwashed it didn't complain on start up.  No shorted lights, no firing on one pot because it's wet, no spannering on the side of the road, no squirming in the wet on corners, no oil pissing everywhere - can't wait to get back on the Beeza. *whistle* *whistle* *whistle* *dunno* *sarcastic* *grins* *grins* *grins*
Current Bikes😎
Kwaka W650
'61 Flash

Past Bikes👍
'49 B31
'59 BMW R60
Yam FS1-E, YB100, RS100, RD200DX,250DX,350B, XS750
MZ250

Offline dave55

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Re: What have you done with your bike/s today?
« Reply #2668 on: 31.01. 2023 16:43 »
What have i done, .....nothing at all other than unwrap lots of new bits  . When i stripped the forks with the intentions of changing the battered seal holders over the weekend i found half a shim on top of circlip and other half under the circlip. Fork stanchions badly pitted and eaten away with water ingress but luckily no damage in the lower legs. So to hell with it and ordered new bushes and staunchions, ah well all good fun  *smile*
Why do they call them Seal holders when they dont have a seal in them ?
BSA Bantam D7 175  1961
BSA A10 650 Golden Flash 1955 Plunger
Suzuki GSX1400 2003

Offline Swarfcut

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Re: What have you done with your bike/s today?
« Reply #2669 on: 31.01. 2023 16:56 »
    Whoops, time to buy some new seals and fit them properly. The seal doesn't just sit on top of the circlip, it is  a drive fit into  the underside of the holder. Open side of the seal faces downwards, towards the slider. I'm sure you knew that already. In a previous incarnation looks like RM strikes again?

 Swarfy.