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HOW TO: 09-14 R1 Install Graves High Precision Cam Chain Tensioner

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BooBooSS

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Discussion starter · #1 ·
Product Listing: http://www.gravesport.com/Graves-Motorsports-Yamaha-R1-High-Precision-Cam-Chain-Tensioner.html

Installation PDF located here: http://www.gravesport.com/instructions/CMY-13R1-PCT.pdf

Graves Motorsports Yamaha R1 High Precision Cam Chain Tensioner for 2009-2013 model motorcycles. Professionally developed under strict guidelines for use in the Graves Yamaha factory race bikes.

Note: You will need need a replacement timing cover gasket and cam chain tensioner gasket from your local Yamaha dealer.

Fitment: Yamaha YZF-R1 2009-2013
 

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Discussion starter · #9 ·
Our's are machined to relieve oil pressure (see groove in picture)... Running a thin plate with a bolt through it (made to save money), will increase your oil pressure since there's no release... Compare the quality and amount of materials used and there's no comparison...

We go through enough R1 and R6 engines in a year to put adequate research into making power in all apects. Putting a cheap part in an expensive engine build is a recipe for failure..
 
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#11 ·
Cost VS Quality

Compare our product to the competitions product and the cost

Graves Product
Adjustment shaft is made of aerospace quality steel machined to a 1.0 threads per millimeter allowing the tuner to adjust the tension on the chain to an exact specification = less friction and consistent cam timing = more power.

The Competitors shaft
Shaft is made of mild steel all thread material with SAE course thread

Graves Cam Chain Body
Designed to support the shaft as close to the cam chain running block as possible for maximum shaft support and minimum shaft flex. The body is machined to allow the exact amount of oil exiting the body to minimize over oiling of the valve train area at high rpm. All of this = more power, accurate cam timing and less friction.

The Competitors Body
Designed to hold the shaft and plugs the oil relief hole

Graves’s lock nut
Made of 7075 T651 and hard anodized for a reliable fit, strong threads, light weight and great looks

The competitor’s nut
Course thread steel nut

You can compare the price but you cannot compare the quality. Take both of these to your engine builder and ask them which one they would install in your motor when their reputation is on the line!


Chuck Graves
 
Discussion starter · #18 ·
BlackShadow said:
I wish the Graves site would put related items you would need for this item. Ie. the gaskets.
Click to expand...
I can help you select the gaskets you will need. We don't sell oem gaskets on the site or host the part numbers for the Yamaha oem stuff. You have to source that stuff from dealerships.

We do have YEC gaskets on the site though. :)


Sent from Motorcycle.com App
 
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#19 ·
Damn wish you made one for the 08.
 
#20 ·
The coarse threads have been a concern of mine on the others (got them for my FZR1000, R1 and R6). I'd be willing to replace them if the parts become available.
 
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