Yamaha XS 650 Twin 4v

Open Close Ordering Information:

Prices And Specifications Effective May 2025, And Are Subject To Change Without Notice.

When a core is required for an item, the core charge will automatically be added to your cart when you add the item. You must return your re-workable OEM core within 180 days of purchase in order to receive a core refund. If we do not offer a core for your application, you need to call us first, and send your core in to be reground / hardwelded.

We use PayPal for payment processing so you know your transaction is safe and secure.

You do NOT need a PayPal account to shop with us, you can use your credit card. You may also call us to order any of the listed items.

All in stock orders placed on-line Monday - Friday before 3:00pm Pacific, will ship the same day.

Please be sure to read our Ordering Policies.


Open Close Pricing Information:

Web Cam Inc. makes every effort to ensure the accuracy of the prices and specifications listed on our web site. However, prices and specifications are subject to change without notice. Prices listed do not reflect shipping and handling charges, nor sales tax (if applicable). WEB CAM INC. IS NOT RESPONSIBLE FOR ANY INACCURACIES.

Close Open Camshaft Profiles:

VALVE
LIFT

DURATION

DURATION
@ 0.050"

GRIND NUMBER

REGRIND

HARD
WELD

NEW
BILLET
▼

.388/.388

40i

81-880

$375.00

N/A

N/A
Restore your cam back to factory specifications.

Please Call Us At 951/369-5144 To Order 81-880
▼

.395/.395

280°/280°

240°/240°

359

80-070

$375.00

N/A

N/A
Broad power range for mild track.

Please Call Us At 951/369-5144 To Order 80-070
▼

.391/.391

290°/290°

252°/252°

359a

80-080

$375.00

N/A

N/A
Good mid and upper end performance for mild track. Requires Performance Valve Spring Kit.

Please Call Us At 951/369-5144 To Order 80-080
▼

.472/.472

302°/297°

266°/261°

384

N/A

80-101

$575.00

N/A
Strong mid and upper end performance for racing engines. Requires Performance Valve Spring Kit.

Please Call Us At 951/369-5144 To Order N/A

Close Open Other Components:

Part Type

PART #
▼
Cam Gear, Adjustable

CG-Y12

$295.00
New adjustable cam gear kit includes flange, sprocket, and 3 bolts. Fits from 1971-1985 (36 teeth). Price (Each).
Qty:

▼
Rocker Arm Hardwelded

HR-Y05

$165.00
We will hardweld and precision grind your worn out / new rockers for a longer wearing surface. Recommended with ALL profiles. Price (Each). Please Call Us At 951/369-5144 To Order HR-Y05
▼
Valve Spring Kit With Titanium Retainers Fits 1970-1983, (PM)

VC-Y19

$195.00
Kit includes performance dual springs, titanium retainers, HT base washers, and HT steel keepers. This kit is supplied with radiused bead keepers and must be used with radiused groove valves. Check retainer to guide seal clearance, minimum .030 additional clearance needed at full lift. Price Per Set (4). Please Call Us At 951/369-5144 To Order VC-Y19
▼
Valves, Stainless (Kibblewhite) Intake Standard Size

IV-Y19

$77.00
Standard size 41 mm. Price (Each).
Qty:

▼
Valves, Stainless (Kibblewhite) Exhaust Standard Size

EV-Y19

$77.00
Standard size 35 mm. Price (Each).
Qty:


Close Open Related Documents:


General Information

PDF

Congratulations

LINK

Degreeing In Your Camshaft

PDF

JPG

General Valve Spring Information

PDF

JPG

Valve Spring Installed Height Information

LINK

Web Cam Full Catalog


Vehicle Specific Information

PDF

Yamaha XS 650 Twin 4v Parts List.


Home | Yamaha XS 650 Twin 4v | Updated: May 8 2025
Web Cam Inc. products are not intended for use on pollution controlled vehicles.
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Open Monday - Friday, 8:00am - 4:30pm Pacific
Phone: 951.369.5144