1982 CB750F...Better Devil

Sderbyshire

Into Sailing, classic Triumph cars and motorbikes.
Yeah, it's a Delkevic. It's pretty awesome, especially for the money. Easy install, really nicely made, beautifully clean welds, and a fantastic sound. Not obnoxious by any means, but a significant roar. If you get the megaphone muffler then there are a couple of adjustments you can make to increase the sound if you so wish. It's not chromed, so expect yellowing of the headers. I'd recommend it for sure.

Thanks Jimbo, i found one of those second hand on ebay yesterday, so snapped it up for an experiment !

i think i'll need a link pipe to angle the silencer up 20-30deg for the original 'wavy' header, but that soulddnt be a problem.

look out for updates on the 'Scruffy Racer' thread :)
 

Jimbonaut

Over 1,000 Posts
DTT SUPPORTER
Yup, too lean. I deleted the air cutoff o-rings when I last rebuilt the carbs, but didn’t know this meant it was necessary to enrichen the mixture. Turned out the screws a full turn (they’re now at 2½ turns out) and it sounds like, well, a new bike. Which it kinda is but damn it sounds good. No more lope or pulse, just a strong steady idle at 1000rpm. The clutch chatter which had developed has completely gone too -



Sent from my iPhone using DO THE TON
 

Jimbonaut

Over 1,000 Posts
DTT SUPPORTER
I bought this tool from the same company in the UK that sells the CarbTune. When I dicked around with the mixture screws on Rhonda, all I had was a little flathead attachment (the kind you get in the Ikea toolkits, the little interchangeable magnetic screwdriver whatnots) and spent more time dropping the bastard and burning my hand on the hot engine than actually adjusting the mixture. This tool is the business however, makes getting to those screws 1000 times easier -

 

pidjones

Over 1,000 Posts
That tool looks great! So much better than the give-away screwdriver that I cut the blade to ~2cm and ground a new blade on then cut the handle off at ~2cm. Worked, but still fiddly.
 

Jimbonaut

Over 1,000 Posts
DTT SUPPORTER
Thanks gents, amazing how a bit of know-how changes everything. One day I hope I can pass on some of the knowledge I've learnt here as well. This forum is the business. Standing on the shoulders of giants once again.
 

Jimbonaut

Over 1,000 Posts
DTT SUPPORTER
Thanks fellas. Getting colder here by the minute, but Friday's opening up quite nicely, 13C. We had three feet of snow on the ground this time last year, so I'll take 13 degrees all day. Might be time to squeak in one last ride of the year.
 

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