Search found 10 matches

by elmofongo
Mon Oct 21, 2013 9:03 am
Forum: Single Cylinder Bevel Drive Engines > 250, 350 & 450
Topic: Clutch pressure plate adjustment
Replies: 0
Views: 5098

Clutch pressure plate adjustment

Hello, I just reassembled the clutch basket and was wondering how much tension needs to be present. The shop manual says to keep 5mm protruding from the surface of the lock nut. I did just that and tried to operate the clutch and it seems stiffer that what I remembered when the bike last ran. Is the...
by elmofongo
Mon Sep 30, 2013 3:34 pm
Forum: Single Cylinder Bevel Drive Engines > 250, 350 & 450
Topic: Narrow Case Magneto/Alternator identification
Replies: 0
Views: 5219

Narrow Case Magneto/Alternator identification

Greetings, I am trying to identify what type of alternator my narrow case 250 is equipped with. I finally took the flywheel off and found 2 coils on the stator. So I think this is the 6V/40W magneto system. However I expected a 3-wire cable to come out. Instead, it seems to only have 2 wires are com...
by elmofongo
Wed Jun 20, 2007 2:03 pm
Forum: Single Cylinder Bevel Drive Engines > 250, 350 & 450
Topic: Carb mounting angle?
Replies: 1
Views: 1694

Carb mounting angle?

Hello,

Can someone tell me what the carburator mounting angle is on narrowcase singles? I have a Dellorto UB24 that I want to mount on my Monza 250 and I'm wondering if I have the correct float bowl angle.

Thanks

-Adriano
by elmofongo
Thu Jun 07, 2007 3:28 pm
Forum: Single Cylinder Bevel Drive Engines > 250, 350 & 450
Topic: more narrow case questions
Replies: 5
Views: 3451

Hi Nick,
At this point I don't even know if I have athe magneto or alternator.
Is there a way to find out without having the engine running?
Note that the bike is not really wired, so I can't tell from the way it's wired.

Thanks

Adriano
by elmofongo
Mon Jun 04, 2007 9:26 am
Forum: Carburettor & Fuel System Shop
Topic: Dellorto UB24BS2 vs. UBF24BS ?
Replies: 1
Views: 2279

Dellorto UB24BS2 vs. UBF24BS ?

Can anyone tell me the difference between the Dellorto UB24BS2 and the UBF24BS ?

Thanks

-Adriano
by elmofongo
Wed May 30, 2007 3:44 pm
Forum: Single Cylinder Bevel Drive Engines > 250, 350 & 450
Topic: more narrow case questions
Replies: 5
Views: 3451

more narrow case questions

Greetings, I have a Monza 250 narrow case project bike that has been dormant for a while and I am about to start working on it again. I have some basic questions regarding ignition and fuel system. I think the bike has the 6V 60W alternator. I say that because I only see 2 wires (instead of 3) in th...
by elmofongo
Wed May 30, 2007 9:13 am
Forum: Single Cylinder Bevel Drive Engines > 250, 350 & 450
Topic: Best way to proceed after 4 years of storage?
Replies: 6
Views: 4096

Thanks for the tips.
I'm curious why is a 20-50W oil preferred over a 10-40W oil?

-Adriano
by elmofongo
Wed May 23, 2007 9:19 am
Forum: Single Cylinder Bevel Drive Engines > 250, 350 & 450
Topic: Best way to proceed after 4 years of storage?
Replies: 6
Views: 4096

I'm worried about "dry spots" in the engine.
Is there a way to make sure the top end gets some lubrication before I try to start it? Do I need to pour some oil through the bevel gear cover?

Also, what oil is recommended for the NC singles?

Thanks
by elmofongo
Mon May 21, 2007 11:45 am
Forum: Single Cylinder Bevel Drive Engines > 250, 350 & 450
Topic: Best way to proceed after 4 years of storage?
Replies: 6
Views: 4096

Best way to proceed after 4 years of storage?

Hello, My 250 narrowcase has been in storage for the last 4 years. I don't remember what kind of engine oil I used last time it ran. I was wondering what is the best way to proceed. Do I need to change the oil before trying to start it again? Or do I need to do something more drastic (eg. dismantlin...
by elmofongo
Mon Nov 22, 2004 11:41 am
Forum: Single Cylinder Bevel Drive Engines > 250, 350 & 450
Topic: New member with a narrowcase
Replies: 0
Views: 1964

New member with a narrowcase

Hello,

I have a 250 narrowcase project bike made up of parts
of various origins. I hope to get it running one day.
It needs a carb and some ignition work.
Can anyone identify what exact model my engine belongs to?

The engine ID is DM250-91966

Thanks

-Adrian

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