Monobloc 389 B 32 on an Gold flash iron head

[Swarfcut]

Guy, You may find the idle screw is there, nicely seized into the alloy body, with the slotted screw head sheared off. The business end of the screw will be felt in the throttle slide position, locating  the vertical slot in the throttle slide. You may be lucky, but now the throttle slide is no longer easily adjustable more likely this is why the carb was discarded as backyard repairs are impossible.

 Swarfy.

[Guy Wilson]

you should be know as 'Detective' Swarfy ... I will check..my eyes are not as good as they were and its very possible...
Guy

[RDfella]

Musky - as I recall you weren't allowed to have a tickover on racing bikes, so if (when) you came off the engine stopped (the wonderful days before kill switches and other safety gear that's as heavy as the bike).

[muskrat]

G'day RD.
I don't recall any "rules" like that down here. There may have been in earlier times, I was racing the A7SS in the 90's. Having the slide drop completely certainly improved engine braking.
So much for the rules and electronic wizardry with MotoGP and Superbike racing. How many times do we see a bike on it's side still running for the rider to pick it up and get going?
Cheers

[duTch]

 

........So much for the rules and electronic wizardry with MotoGP and Superbike racing. How many times do we see a bike on it's side still running for the rider to pick it up and get going?.....

 Yeah- I've noticed that a lot, first thing they go for is the clutch lever- if it's still there 

[Guy Wilson]

After Swarfy's advice, I managed to drill out what remained of the original idle crew on the donated Monobloc 376 / 5 and tapped a 10mm bolt in that I filed the end down as much as possible to match the original end of the idle crew.. not ideal, but cost next to nothing...I've been running it for a couple of weeks now and the plugs are a nice tan colour for the first time since I've been riding the thing.. Admittedly, its harder to start - or I haven't mastered the technique yet.. although seems to run well and that super rich smell of unburnt fuel from the exhausts seems to have abated.. I'll do a few long runs before the DGR next month and hopefully the fuel economy will be closer to 40mpg than the previous low 20's ( I need to check the accuracy of the odometer - the speedometer does work)
More as I discover more...
Guy

[Swarfcut]

Well done, you have achieved the impossible by my reckoning. Been there, (didn't) done that. Mine is still  gathering dust in the" too good to throw away but useless" spares box.

Swarfy

[RogerSB]

Just been reading through this post and it certainly highlights the value of this forum when with a combination of a lot of help and in this case especially of Musky's and Swarfy's expertise it eventually led to the answer of someone's problem so far away.

[Guy Wilson]

yes, certainly to add my gratitude to the forum and the generosity of the information shared here.. My bike runs a lot more than not as a result of the forum and I enjoy it a lot more than not!
Guy