Question about Yamaha YZF-R15 Motorcycles

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How to upgrade engine performance.....?? plz plz plz help..

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You don't say what bike you have but if it has a four stroke engine and you are serious about upgrading, then get a race cam for the bike.

Contact Web Cam Racing (1-951-369-5144) in California and they can fix you up. I estimate $300us. Add and shipping both ways. The web address is You would ship your overhead cam to them by Federal Express and they would modify the cam to your specifications then send it back. Neither you or I can give them degree angles for rise or duration or any other spec they may need, so you just need to tell them what type of racing you do (street, track, quarter mile etc ), and what you want from the cam, take off from the line, top end speed, torque, etc..

Don't get too radical with the cam. Go too far and the bike will only start with a car pulling you at 30 mph. I am serious. Also tell them any modifications you have made > air cleaner, sprockets, tires, exhaust etc.. ASK FOR THEIR RECOMMENDATIONS on the above and on ignition timing. You may have to get a different CDI to manage the more radical timing. Be sure to reseat the valves before installing the new cam.

Okay, I have given you my best. Do me a favor and don't kill yourself. You are playing with fire here. I am serious about that as well. I forgot to ask / mention, who will do the cam removal and re-install the cam? I strongly suggest the dealers service department so you have an experienced hand in the mix. Also, you will probably need to re-jet the carb. Ask the cam shop about that as well.

A “very helpful” rating for this answer? Thanks!

Posted on Aug 02, 2010


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Thank you for the information. Please find the CPUs supported by the Motherboard of your computer below.

Duron: 1.6 - 1.8 GHz at FSB 266 MHz
Athlon XP:
Palomi** Core: 1500+ - 2100+ at FSB 266 MHz
Thoroughbred Core: 1700+ - 2700+ at FSB 266/333 MHz
Barton Core: 2500+ - 3200+ at FSB 333 MHz
2500+ - 3200+ at FSB 400 MHz

Sempron: 3000 + and up
I see that the present processor is requires ** upgrade as it is one of the best match availble for this motherboard. However, you can upgrade the Memory to 2 GB using two 1GB
DDR 266/333/400 modules to improve the system perform performance. Also, you can consider for a video card upgrade. Your computer supports both AGP and PCI video cards.

Also, you can download the maunal for the motherboard of your computer from the link below for your referance.


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