Search found 341 matches

by double diamond
Mon Feb 12, 2018 7:32 pm
Forum: Ducati Singles Main Discussions (& How to Join)
Topic: direct replacement 6 Volt rectifier for Monza
Replies: 29
Views: 527

Re: direct replacement 6 Volt rectifier for Monza

The early models (175/200) with a battery ignition used a plate type selenium rectifier made by Westinghouse but no regulator. I’ve seen several Ducati systems that incorporated a Honda 6v plate rectifier as a replacement.

Matt
by double diamond
Thu Jan 18, 2018 9:45 pm
Forum: Ducati Singles Main Discussions (& How to Join)
Topic: New 350 owner/help ID a 66
Replies: 25
Views: 1694

Re: New 350 owner/help ID a 66

If you adjust valve clearance it might quiet down a little. While you're adjusting valve clearance, you can check the backlash on the upper bevel gears, which could also be a source of top end noise. Anything beyond that is going to be complicated and expensive.
by double diamond
Thu Jan 11, 2018 8:51 pm
Forum: Ducati Singles Main Discussions (& How to Join)
Topic: Fork strip
Replies: 31
Views: 998

Re: Fork strip

The year stamp reference for fork sliders applies to the “DUCATI” forks. These forks were left bare aluminum (slider unpainted). The “MARZOCCHI” fork installed on earlier models (175/200) did not have a year of manufacture stamped on them. These forks were typically painted the color of the frame. T...
by double diamond
Tue Jan 09, 2018 9:49 pm
Forum: Ducati Singles Main Discussions (& How to Join)
Topic: 1969 desmo 350- first days
Replies: 1
Views: 279

Re: 1969 desmo 350- first days

Doug, Glad to hear you’ve brought your Mk3 D back to life. The foil tag on the steering head is attached with some sort of adhesive. Something like 3M weatherstrip adhesive would be a good choice. I would suggest removing the tag altogether, clean both surfaces and glue it back in place. The model d...
by double diamond
Mon Jan 08, 2018 11:26 pm
Forum: Ducati Singles Main Discussions (& How to Join)
Topic: Introduction and question about Diana Sprocket Flange (Carrier)
Replies: 13
Views: 441

Re: Introduction and question about Diana Sprocket Flange (Carrier)

Robert, The engine number should be only 5 digits. Maybe you got an extra "0" in there? At any rate, if it's 80619, that's a very early engine number. Curious that the full year number is stamped. Usually the last digit of the year was left for the dealer to stamp, which they usually didn'...
by double diamond
Mon Jan 08, 2018 11:13 pm
Forum: Ducati Singles Main Discussions (& How to Join)
Topic: Moto Doffo
Replies: 1
Views: 189

Moto Doffo

Finally got a chance to visit Marcelo Doffo over the holidays. If you find yourself in Southern California, the Doffo collection is a must see. Marcelo is the most engaging, enthusiastic host imaginable and his collection will leave you speechless. Even the bikes he has hung from the rafters in the ...
by double diamond
Mon Jan 08, 2018 10:13 pm
Forum: Ducati Singles Main Discussions (& How to Join)
Topic: Introduction and question about Diana Sprocket Flange (Carrier)
Replies: 13
Views: 441

Re: Introduction and question about Diana Sprocket Flange (Carrier)

The Diana was basically a Monza with different tin and the clip-on/smooth top clamp arrangement. Yours obviously doesn’t have the clip-ons but this was typical of USA market bikes. Mechanically it’s a Monza so many of the parts you might need will be available. Others, such as the Aprilia horn, will...
by double diamond
Mon Jan 08, 2018 9:38 pm
Forum: Ducati Singles Main Discussions (& How to Join)
Topic: New 350 owner/help ID a 66
Replies: 25
Views: 1694

Re: New 350 owner/help ID a 66

Sounds like the lyre springs are bent if they’re not pressing the gear into the ratchet teeth. Perhaps the springs have cracked at the mounting? Remove the clutch and you can inspect the mechanism. If the springs aren’t cracked, bend the mounting tab flat with the spring arms and see if it engages. ...
by double diamond
Mon Jan 08, 2018 8:52 pm
Forum: Ducati Singles Main Discussions (& How to Join)
Topic: Choke madness
Replies: 5
Views: 386

Re: Choke madness

If the model in question is a “UK Diana” this would make it a Daytona. The early 4 speed Daytona was the same as ROW Diana. The Diana was basically a Monza with different tin and the clip-on/smooth top clamp arrangement. These early Dianas employed a del’Lorto UBF24 carburetor which had a cable–oper...
by double diamond
Fri Dec 08, 2017 6:23 pm
Forum: Ducati Singles Main Discussions (& How to Join)
Topic: 1969 desmo 350 valuation
Replies: 8
Views: 464

Re: 1969 desmo 350 valuation

Short of disassembling the head (which the seller might not want to get into), you can check valve clearance and inspect the surface of the cam. Closing rockers should be zero clearance but you should be able to detect that the rocker is not less than zero. The opening rocker should have play when t...

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