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Yamaha Variable Compression Ratio 500cc Race Bike


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Posted

Hello all, I am looking for an article from Performance Bikes Magazine that had a V4 500cc race bike with variable compression ratio using hydraulics. I think it was one of Wayne Rainey's bike. Anyone remember? Thank you in advance.

:D

Posted
Hello all, I am looking for an article from Performance Bikes Magazine that had a V4 500cc race bike with variable compression ratio using hydraulics. I think it was one of Wayne Rainey's bike. Anyone remember? Thank you in advance.

:eusa_whistle:

Yes, the head inserts would drop at low engine speed, raising the compression and then lift at higher speeds to reduce detonation. I probably have the article somewhere but I have no idea where....

  • 2 months later...
Posted

think there was an article on it in Motocourse for the relevant year...............

Posted

was feacher in clasic racer a few moths ago ,im sure this is the bike you are on about.

  • 10 years later...
Posted
2 hours ago, Snakeroad said:

well??? im still waiting lol

You need to learn to be patient.

  • Haha 3
Posted

When I saw "speedy sie" I thought "what year is this?"

 

Holy threadsurrection

 

 

  • Haha 2
Posted
3 minutes ago, Alpinestarhero said:

 

Holy threadsurrection

More than a few moths ago!

Posted

Just like when the Mrs gets all upset with you for not taking out the rubbish in good time, what's ten years between friends!

  • 4 months later...
Posted

 I have a picture of someone drumming their fingers beside their computer for the past decade............any minute now

  • Haha 1

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