OP
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Member
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Location: Napa, CA
 
Member
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Location: Napa, CA
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I already read through the threads but I didn't find the answers to the questions I have. Anyway, I am thinking about upgrading to a Cosa II clutch while I am rebuilding my '77 P200 engine. The reason is I have arthritis in my hands and I heard the Cosa clutch is much easier to operate than the standard 7 plate.

It appears that there are several on the market - SIP makes their version, Piaggio, BGM, Ferodo, etc. There is also a "sport" and a "standard" for the SIP. I assume the sport has stiffer springs which defeats the purpose for me. So the questions are:

1) Is there one brand that is better than the other? I am inclined to go with either the SIP standard or the genuine Piaggio item.

2) What else do I need to order? It looks like there is a different nut and washer than the old style clutch and I am going to retain the oil injector. Do I need any additional spacers under the clutch? Is the standard plunger and pressure plate the same? Anything else I am missing?

Thanks for all the help!



SIP Clutch: https://www.sip-scootershop.com/en/products/clutch+sip+cosa+2+standard+_93405100

Piaggio: https://www.sip-scootershop.com/en/products/clutch+piaggio+cosa+2+standard+_93042000
UTC

Hooked
1952 Allstate 1955 Allstate 1958 lambretta 1965 Allstate 1968 sprint
Joined: UTC
Posts: 495
Location: Central california
 
Hooked
1952 Allstate 1955 Allstate 1958 lambretta 1965 Allstate 1968 sprint
Joined: UTC
Posts: 495
Location: Central california
UTC quote
Clutch
I have a p200e engine in my 68 sprint. I just installed a new clutch. I bought just a standard stock clutch from scooters west and it works great. Very easy to pull the clutch. I think I could pull the clutch in with one finger. Stock engines don't need anything special when it comes to the clutch. My wife rides it and says it is super easy to ride. Anyway.....
OP
UTC

Member
Joined: UTC
Posts: 36
Location: Napa, CA
 
Member
Joined: UTC
Posts: 36
Location: Napa, CA
UTC quote
Thanks but I've been using a standard clutch for almost 40 years now and need something a little easier these days, which is why I am asking about the Cosa clutch.
@mjrally avatar
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Veni, Vidi, Posti
73 & 74 Rally, 76 ET3, 80 P200, 06 PX150, 59 Ser 2, 65 Silver Special, 90 V5N 50, 2015 HD Road Glide Special
Joined: UTC
Posts: 5142
Location: Oceanside, CA
 
Veni, Vidi, Posti
@mjrally avatar
73 & 74 Rally, 76 ET3, 80 P200, 06 PX150, 59 Ser 2, 65 Silver Special, 90 V5N 50, 2015 HD Road Glide Special
Joined: UTC
Posts: 5142
Location: Oceanside, CA
UTC quote
http://scooter-speed.com/

Call Mark at scooter speed and order through him. He'll have everything you need and will patiently answer any questions you have.

It's been a while since I've installed a Cosa clutch and other than the different washer and nut, I think the pressure plate and brass plunger are the same.

You definitely need to check the clutch cover and make sure it doesn't rub on the new clutch. The oil pathway at the top of the cover will rub and you may need to grind down the contact point with a Dremel. Or, you can buy a special spacer but you have to worry about oil drips/leaks. I'd recommend just dremeling down the cover, cleaning it and reusing.
UTC

Molto Verboso
One or two fun scoots....nothing too precious
Joined: UTC
Posts: 1983
Location: UK (South East)
 
Molto Verboso
One or two fun scoots....nothing too precious
Joined: UTC
Posts: 1983
Location: UK (South East)
UTC quote
Late PX200s shipped from the factory with the standard Cosa 2 clutch and it worked very well, until people increased the power and RPM. The SIP Sport has a band around it for reinforcement of the basket and it has a better/machined centre hub with flexibility to use 8-16 springs. If you want a bit of extra strength, it's a good option at a much lower cost than the gourmet CNC clutches. It ships with 8x XL springs, but you can use stock Piaggio Cosa springs if you want the lightest touch possible.
UTC

Hooked
1952 Allstate 1955 Allstate 1958 lambretta 1965 Allstate 1968 sprint
Joined: UTC
Posts: 495
Location: Central california
 
Hooked
1952 Allstate 1955 Allstate 1958 lambretta 1965 Allstate 1968 sprint
Joined: UTC
Posts: 495
Location: Central california
UTC quote
Clutch
I get what your saying....I can't imagine there being a clutch easier than what I have. Too bad we don't live a bit closer to each other you could test what I have. If your ever in Clovis let me know and we could meet up.
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