Search found 1548 matches

by 72degrees
22 Dec 2023 14:44
Forum: Tre e mezzo
Topic: Atomiser for VHB25 carburetors
Replies: 7
Views: 1067

Re: Atomiser for VHB25 carburetors

If I remember correctly the K atomisers have holes right at the bottom and the D don't. I think some folk may have turned D in to K by filling in the holes with solder.

This long thread is worth a read.

https://www.morini-riders-club.com/foru ... 333#p21333
by 72degrees
18 Dec 2023 09:24
Forum: Tre e mezzo
Topic: Refurbishing carbs, what parts wear
Replies: 15
Views: 1773

Re: Refurbishing carbs, what parts wear

The carbs seem to be fine but I am one of those people who likes everything to be spot on and I feel that the mid range could be better. Ah, the mid range flat spot ;) Running standard exhaust system and air cleaner? Be thankful it hasn't got PHBH28's on. Though oddly mine is a lot better since I u...
by 72degrees
14 Dec 2023 08:03
Forum: Corsaro 1200, Avio, Veloce, ZZ, ZT
Topic: Front end vibrations!!!
Replies: 5
Views: 1162

Re: Front end vibrations!!!

As the discs are floating did you replace the centres as well as the outer disc? The bobbins may be worn? The bobbins were so worn on my Gilera Saturno front disc that you could hear them rattling but no brake pulsing. I was able to replace the bobbins. The 'carrier' might be slightly warped I supp...
by 72degrees
14 Dec 2023 07:56
Forum: Tre e mezzo
Topic: Jetting issue?
Replies: 39
Views: 9246

Re: Jetting issue?

As I’ve said many times before, its not difficult to diy. The hardest part is finding a coil former. Now 3D printing is becoming more easily available even that should diminish. These are old bikes, supposedly we are enthusiasts, prepared to do a bit moer than expect off the shelf spares. A rewindi...
by 72degrees
13 Dec 2023 09:18
Forum: Corsaro 1200, Avio, Veloce, ZZ, ZT
Topic: Front end vibrations!!!
Replies: 5
Views: 1162

Re: Front end vibrations!!!

Exasperating!

This thread may be worth a look even though about a Triumph. Note mention of the wheel hub itself possibly being not 'true'.

https://www.triumphrat.net/threads/brak ... th.974701/
by 72degrees
13 Dec 2023 09:12
Forum: Tre e mezzo
Topic: Jetting issue?
Replies: 39
Views: 9246

Re: Jetting issue?

Good to hear you have sorted the coil. Are there any companies left providing this service or are we now reliant on helpful club members? A very pertinent question. A quick google threw up these folk but I haven't made an enquiry (touches wood and glances at spare stators on shelf). http://www.vehi...
by 72degrees
20 Nov 2023 12:31
Forum: The 500
Topic: Leaking Clutch Oil Seal
Replies: 19
Views: 5849

Re: Leaking Clutch Oil Seal

JonnyP wrote: 20 Nov 2023 11:54 My local machine shop simply tack-welded a couple of old clutch plates together on the outer periphery, then welded a handle on. Took him all of 30 minutes!
Yeah, but he charged £15 :wink:
by 72degrees
20 Nov 2023 11:34
Forum: The 500
Topic: Leaking Clutch Oil Seal
Replies: 19
Views: 5849

Re: Leaking Clutch Oil Seal

My special clutch holding tool is an old driven plate with a length of steel bar attached by two set screws and nuts. You need a very sharp drill bit!
It doesn't engage fully on the drum splines as the 'handle' gets in the wav but it has never failed me.
by 72degrees
10 Nov 2023 15:15
Forum: 250 Vee
Topic: Carb settings.
Replies: 1
Views: 2284

Re: Carb settings.

One and a half turns out from fully in for the mixture screws. Throttle stops equally in far enough to hold the slides up a smidgen but not too much. You can do a finger prod or dangling stick approach to get the slides rising together when opening the throttle. Probably worth erring on the not too ...
by 72degrees
10 Nov 2023 15:07
Forum: Tre e mezzo
Topic: Well it did seize !
Replies: 1
Views: 2573

Re: Well it did seize !

The crank timing pinion succumbed after a good heat and shock 'n unlock cycle once armed with a perfectly fitting 28mm ID x 5 mm thick washer behind the circlip and a 30 to go behind that over the timing belt splines (supplied very quickly by ACCU). A heavy duty two leg puller soon had it off. Strug...
by 72degrees
10 Nov 2023 14:27
Forum: Bikes and bits wanted
Topic: 250 2c carb to airbox manifolds
Replies: 7
Views: 3390

Re: 250 2c carb to airbox manifolds

As far as I can see, 30.01.61 is the 90 degree rubber 'elbow' with MM50 moulded in so yes the same as the Camel Start Gomma V619? For some odd reason I have 3 used ones in the odds and ends box in the shed. There must have been four when I 'broke' the 250 that became the Forgotten Error. No stiffeni...
by 72degrees
08 Nov 2023 19:13
Forum: Seiemmezzo
Topic: Eicma
Replies: 27
Views: 15774

Re: Eicma

Still want a single ;)
by 72degrees
08 Nov 2023 11:06
Forum: Tre e mezzo
Topic: Gearbox cluster compatibility
Replies: 9
Views: 3447

Re: Gearbox cluster compatibility

Oh and for future reference the nominal dimensions of the bushes in question appear to be as follows. 25.01.11 1st gear bush on driven shaft ID 17 OD 21 L 12.5 25.01.12 2nd gear bush on driven shaft ID 20 OD 24 L 17.5 The other plain with spiral 25.03.09 (5th gear bush on main shaft) seems OK on my ...
by 72degrees
08 Nov 2023 08:30
Forum: Tre e mezzo
Topic: Gearbox cluster compatibility
Replies: 9
Views: 3447

Re: Gearbox cluster compatibility

I decided to take my shaft, gears and two sets of used bushes to a CNC machinist locally who made me a custom small end for a Gilera 98. He agrees that there is too much play and is going to quote for making new ones from suitable material. Once the machine is set up he can run off as many as the sm...