Author Topic: The little Ducati Featherweight  (Read 17012 times)

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Offline jag767

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Re: The little Ducati Featherweight
« Reply #100 on: February 24, 2017, 08:20:34 AM »

Offline grcamna2

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Re: The little Ducati Featherweight
« Reply #101 on: February 24, 2017, 10:46:43 AM »
That sounds nice Jag.  8)
When you shift it up,does it require you to use the back of your heel ?
75' CB400F/'bunch o' parts' & 81' CB125S modded to a 'CB200S'
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Offline jag767

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Re: The little Ducati Featherweight
« Reply #102 on: February 24, 2017, 10:47:25 AM »
That sounds nice Jag.  8)
When you shift it up,does it require you to use the back of your heel ?

I have to pull hard with my toes for 1st, then stomp down for the rest, and going back down I pull up with my leg a little. I'm sure I have to just get used to it.

Offline grcamna2

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Re: The little Ducati Featherweight
« Reply #103 on: February 24, 2017, 11:50:21 AM »
That sounds nice Jag.  8)
When you shift it up,does it require you to use the back of your heel ?

I have to pull hard with my toes for 1st, then stomp down for the rest, and going back down I pull up with my leg a little. I'm sure I have to just get used to it.

Your riding it like a sportbike in full tuck
75' CB400F/'bunch o' parts' & 81' CB125S modded to a 'CB200S'
  I love the small ones too !
Do your BEST...nobody can take that away from you.

Offline jag767

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Re: The little Ducati Featherweight
« Reply #104 on: February 24, 2017, 04:18:35 PM »
Not really, although I was getting into a groove riding it before. Having a tach really helps, I was over revving the gears a bit. Also the drop between gears is huge!  I never rode a 4 speed before.

Offline jag767

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Re: The little Ducati Featherweight
« Reply #105 on: February 27, 2017, 02:43:03 AM »
Knocking items off the list. Home to have it complete by the end of this week.

Offline jag767

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Re: The little Ducati Featherweight
« Reply #106 on: March 01, 2017, 11:11:04 AM »
Couldn't leave well enough alone...

Offline grcamna2

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Re: The little Ducati Featherweight
« Reply #107 on: March 01, 2017, 11:16:24 AM »
That a Suz. T500 drum?
75' CB400F/'bunch o' parts' & 81' CB125S modded to a 'CB200S'
  I love the small ones too !
Do your BEST...nobody can take that away from you.

Offline jag767

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Re: The little Ducati Featherweight
« Reply #108 on: March 01, 2017, 05:23:09 PM »

Offline grcamna2

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Re: The little Ducati Featherweight
« Reply #109 on: March 01, 2017, 09:04:26 PM »
75' CB400F/'bunch o' parts' & 81' CB125S modded to a 'CB200S'
  I love the small ones too !
Do your BEST...nobody can take that away from you.

Offline jag767

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Re: The little Ducati Featherweight
« Reply #110 on: March 01, 2017, 11:53:18 PM »
That a Suz. T500 drum?

Wow, yes.

it's a heavy one.

It's actually not that heavy, although I thought that same thing. Lightest 200mm hub that was produced.I think I'm adding 5pounds of unsprung weight and the tradeoff is 2.5 times the stoppingpower. Seems worth it lol.

Offline grcamna2

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Re: The little Ducati Featherweight
« Reply #111 on: March 02, 2017, 09:54:17 AM »
That a Suz. T500 drum?

Wow, yes.

it's a heavy one.

It's actually not that heavy, although I thought that same thing. Lightest 200mm hub that was produced.I think I'm adding 5pounds of unsprung weight and the tradeoff is 2.5 times the stoppingpower. Seems worth it lol.

I apologize,I just remembered it was the GT750 'Water Buffalo' front drum that was a 'tank'.I think most vintage Suzuki stuff is built Extra strong/over-built to last forever.
That T500 front drum is powerful enough to stop anything you throw at it as long as it's set-up correctly.
« Last Edit: March 02, 2017, 09:58:29 AM by grcamna2 »
75' CB400F/'bunch o' parts' & 81' CB125S modded to a 'CB200S'
  I love the small ones too !
Do your BEST...nobody can take that away from you.

Offline jag767

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Re: The little Ducati Featherweight
« Reply #112 on: March 02, 2017, 10:40:29 AM »
That a Suz. T500 drum?

Wow, yes.

it's a heavy one.

It's actually not that heavy, although I thought that same thing. Lightest 200mm hub that was produced.I think I'm adding 5pounds of unsprung weight and the tradeoff is 2.5 times the stoppingpower. Seems worth it lol.

I apologize,I just remembered it was the GT750 'Water Buffalo' front drum that was a 'tank'.I think most vintage Suzuki stuff is built Extra strong/over-built to last forever.
That T500 front drum is powerful enough to stop anything you throw at it as long as it's set-up correctly.

Yup that's what I'm hoping for! The 160mm hub wasn't cutting it on the ride I took. The was the trans is gear engine breaking isn't an option as much as other bikes, I used the brakes a lot more. Since the t500 hub was designed for a 500lb bike, 200lbs should be cake!

Offline rickmoore24

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Re: The little Ducati Featherweight
« Reply #113 on: March 02, 2017, 12:52:57 PM »
Just catching this build, very cool little bike! Nice work!  :)
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Offline jag767

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Re: The little Ducati Featherweight
« Reply #114 on: March 03, 2017, 06:23:33 PM »
Just catching this build, very cool little bike! Nice work!  :)

Thanks! While I wait to finish up the new front wheel, the 43t rear sprockets mounting studs showed up. Got her mounted, and went to throw the chain on. Yea, didn't think about 5 teeth meaning i'd need a larger chain! Off by one link.

Offline jag767

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Re: The little Ducati Featherweight
« Reply #115 on: March 05, 2017, 04:35:53 PM »
Big week this week. Have to have the front wheel, and everything else buttoned up and tuned for photos saturday. 2 major bike outlets are going to run features on the bike thus far, so I have a schedule to keep. That and I'm dying to ride!

Offline rickmoore24

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Re: The little Ducati Featherweight
« Reply #116 on: March 05, 2017, 10:24:04 PM »
Awesome! Looking forward to seeing the photos.  :)
1972 CB750 K2 (Daily Runner)
1972 CB750 K2 (Sold)
1973 CB750 K3 (Hardtail 836cc)
1998 CBR F3 - R.I.P., went down on the 101 in Calabasas, Ca.
1995 EG6

Offline jag767

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Re: The little Ducati Featherweight
« Reply #117 on: March 07, 2017, 01:28:12 AM »
Well the front wheel isn't done, but I got the new chain, and decided the hell with it, properly adjusted the 160mm front hub and went for a ride. It's kinda funny, the bike doesn't do anything particular well, but it was extremely enjoyable ride. The bike feels like a lot of work. Compared to my hondas, a lot more finesse of the clutch, a lot more use of the brakes with the 4 speed, and shifting with the right foot took some getting used to. Oh, and shifting by the sound of the motor is hard. I always feel like the bike is at a way lower rpm than it is.
The motor runs extremely well, so well that I don't bother to even kick it over. I drop it into 2nd, roll down my driveway, and just pop the clutch to start.

While I think it needs narrower tires, the bike itself handles well. I think with the 3.00's i ordered I will hardly realize I have to steer at all. I need to do something with the front springs, going to start by the old washer trick but may end up with new springs. Either way, very fixable. The 160 hub stopped just fine adjusted properly. So with the 200 hub I should be able to pick up the rear wheel haha.
The riding position is excellent, and there's room to change position in the saddle, no pressure on any joints, could easily go for a 50 mile ride. Under anything other than heavy high rpm acceleration, the motor sounds fantastic. Beautiful grunty sound, deep tone (for a 160), and just very pleasing.

Compared to the 175 it replaced, the engine has very different characteristics, and once I understood what it wanted to do, the experience was very enjoyable. While it is running rich and higher rpm acceleration is missing some power, there's is more torque on hand down low. I'd wager it's a little less hp than the 175, but the torque is certainly higher. It will be great for commuting, a fun Sunday ride, overall I am pleased. I will borrow a buddies go pro and get a good riding video

Offline scottly

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Re: The little Ducati Featherweight
« Reply #118 on: March 07, 2017, 08:59:30 PM »
It's kinda funny, the bike doesn't do anything particular well, but it was extremely enjoyable ride.
That's the way I feel about my FT 500 thumper. ;D
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Offline 754

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Re: The little Ducati Featherweight
« Reply #119 on: March 07, 2017, 09:35:07 PM »
I think a proper Dellorto with a side floatbowl would  be the Shiznitz on that bike..

It so happens I have a SS 24 Dellorto carb...somewhere.
 
I know on the Mach 1 and Mark 3... The SS 29 is the one to have...
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Offline jag767

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Re: The little Ducati Featherweight
« Reply #120 on: March 08, 2017, 01:19:29 AM »
I think a proper Dellorto with a side floatbowl would  be the Shiznitz on that bike..

It so happens I have a SS 24 Dellorto carb...somewhere.
 
I know on the Mach 1 and Mark 3... The SS 29 is the one to have...

I have a 26mm vhb and 28mm mikuni I could put on, but unless I port the hell out of the intake i'm not sure what I'm going to gain. I'm willing to try it out, but I have to get jets, and make another intake manifold. I have it on good authority as I go larger the mid to low range will suffer. The vm22 I used has either a 2 or 3mm larger throat diameter than what came on the bike, I forget which. I did some calculations, and it's enough to let the motor get what it needs up to 8500 rpm, which happens to be the highest I should push it. I was also doing a lot of reading about how when increasing the diameter of a carb, how it changes the powerband of the motor, and larger not always being better. Definitely something to play with in the future, but I'm not sure how much I will gain, especially since it's realy running well with the 22.
« Last Edit: March 08, 2017, 01:29:42 AM by jag767 »

Offline jag767

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Re: The little Ducati Featherweight
« Reply #121 on: March 08, 2017, 01:36:38 AM »
It's kinda funny, the bike doesn't do anything particular well, but it was extremely enjoyable ride.
That's the way I feel about my FT 500 thumper. ;D

It's interesting isn't it? I mean don't get me wrong, its all relative to what you compare it to. The last thing I was riding ws my hopped up 350f, which is a high compression 400 now, so it's pretty much having to follow that act. The more I ride it, the more I stop comparing it to anything else and the more I enjoy it. I have no issues zipping around cars when I want to, and it's just interesting to ride. I don't know exactly how to describe it, but it almost like it's a chore to ride with the heavy clutch pull, and wide spaced gears, but it keeps the rider more engaged so it's fun.

Offline jag767

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Re: The little Ducati Featherweight
« Reply #122 on: March 08, 2017, 09:49:39 AM »
As she sits

Offline grcamna2

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Re: The little Ducati Featherweight
« Reply #123 on: March 08, 2017, 10:26:29 AM »
That looks good sitting there in the sun;a nice day for the pic.  8)
75' CB400F/'bunch o' parts' & 81' CB125S modded to a 'CB200S'
  I love the small ones too !
Do your BEST...nobody can take that away from you.

Offline jag767

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Re: The little Ducati Featherweight
« Reply #124 on: March 10, 2017, 05:42:13 PM »
www.kinesismoto.com/the-featherweight/

Here's a great hi resolution photo