400/4 build. Paused due to other commitments. But starting up again

[ComfySofa]

Th
Hoping to have the lump out of the viffer tonight so gonna have a night of Thursday. I could bob up then for a twiddle?

Can’t believe you said the L%D word

Let me know old froot…


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Great if you don't worry if you can't though sir!

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[Laverdaroo]

Th
Hoping to have the lump out of the viffer tonight so gonna have a night of Thursday. I could bob up then for a twiddle?

Can’t believe you said the L%D word

Let me know old froot…


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Great if you don't worry if you can't though sir!

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I’m up for it bud, I mentioned the idle circuit the other night on the phone but you weren’t getting it. That was Thursday evenings job amongst other Diddles. Don’t fret I’ll bring all the associated gubbins bud


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[ComfySofa]

Cool - well even though i chickened out on the carb front ive got the clock lights working and im pretty sure ive got the hang of the dummy lights although i think some of the old standard filament bulbs are knacked the LED lights are turning up today so ill fit those tonight assuming they work i think theres just the oil and netural lights and all the electrics are done..! wow! - it really is easy!!

And ive now got a front brake again (with the new setup) cant remember if i said..!

[Matt_Harrington]

Remind me of what the issue is?  (Don't have time to scroll through all the pages!)
If it is the high revs not going back to 1200, then I'd lay money it was a sync issue. I was tinkering last weekend with mine as I have a sync issue and I was staggered the effect the sync has on the running of the engine. Unless someone tells me otherwise, you need a vacuum gauge to get 'em balanced / synced well. Mine are still not right but getting there as I had other things to do so it was 'down tools' for me. I return to them when the weather lets me!

[ComfySofa]

Well first and foremost ive not got any vacuum guages (although ive got an excuse to go and get some now!!)

Start the bike - tickover is not really steady but lowish....twitch the throttle, bike revs up, stays up but steadily comes down to 4k and sits there....as the engine is cold and its just been rebuilt im shutting it off near straight away...

Does this with the throttle cables disconnected also, so its not that...

[Matt_Harrington]

Sounds like sync issue. You don't actually need 4 gauges but I think it quicker with 4. Carbtune is also another option  - same principle - but more expensive.

[Multiman]

Comfy, that bloke (rhymes with Pooh) who's coming over to you on Thursday night has my vacuum gauges so get him to bring them over.
Matt, you are very welcome to borrow them as well.

[Matt_Harrington]

I've got a couple of sets! - but thanks! 

[ComfySofa]

Comfy, that bloke (rhymes with Pooh) who's coming over to you on Thursday night has my vacuum gauges so get him to bring them over.
Matt, you are very welcome to borrow them as well.

Many thanks sir for the advanced use of the guages....think ill still get some though....that being said its [the honda] has kinda cleaned me out for the moment....my old man would be so happy!!

[McCabe-Thiele (Ted)]

Back in the 1950's my late father would tune multi carburettor engines using a listening tube and feeling the exhaust heat by hand.

It was something he learnt whilst an apprentice at RR Crewe. He taught me the basics but he was so much better than any gauge or meter.

[Matt_Harrington]

Ted, I seem to recall a photo from some book (maybe and old Haynes) where some guy had his ear on a tube and the other end near the carb inlet - Me thinks my hearing isn't up to it these days - too many gigs standing in front of the speaker bank!!

[McCabe-Thiele (Ted)]

I have had two hearing aids for over 20 year now so not an option for me either.

[Matt_Harrington]

There you go!

[Oddjob]

That's a pic of Roo and his Lizard tongue, common result of all the inbreeding in Yorkshire 

[Matt_Harrington]

That's a pic of Roo and his Lizard tongue, common result of all the inbreeding in Yorkshire 

 

Almost spat my tea out!!!