F3 675 / 800 Head Failure - There is hope! - Page 24 - MVAgusta.net
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post #231 of 239 (permalink) Old 05-20-2019, 12:56 PM
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You beat me to it, was waiting for the parts and part number to arrive.

Will post pics of the kits next week when they arrive
Hi John, has your kit arrived yet?
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post #232 of 239 (permalink) Old 05-21-2019, 12:09 PM
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You beat me to it, was waiting for the parts and part number to arrive.

Will post pics of the kits next week when they arrive
Hi John, has your kit arrived yet?
Yes, apologies forgot to post the pics.
Right hand cam is the latest profile I can confirm a 0.3mm decrease in lift over the original and the part number has changed from F3R RA5 to F3R RA6 .
what you see in the last pic is the complete kit
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post #233 of 239 (permalink) Old 05-24-2019, 01:44 PM
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Thanks for posting. Let us know how it runs and if you could also post pictures of the old intake valves next to the new ones. Curious to see what they changed (if there is anything visually different)
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post #234 of 239 (permalink) Old 05-24-2019, 03:37 PM
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Thanks for posting. Let us know how it runs and if you could also post pictures of the old intake valves next to the new ones. Curious to see what they changed (if there is anything visually different)
Old style on left, new on right
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post #235 of 239 (permalink) Old 05-25-2019, 12:39 PM
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Thanks. Is it just my eyes or is the stem fatter near the base where it cups out (referring to the 2019 valve)?
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post #236 of 239 (permalink) Old 05-26-2019, 04:28 AM
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Correct, the original valve narrows for the last 15-20mm before the head, and the latest one does get fatter.

Also there is a stronger Ti alloy used, it's the same alloy that the exhaust valves are made of.

Last edited by dudman; 05-27-2019 at 08:54 AM.
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post #237 of 239 (permalink) Old 06-27-2019, 02:57 AM
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Looks like the newer style valve is heavier than the previous style.
Do the newer engines have a lower maximum rpm ?

Sergio -- Initial succes or total failure ! --
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post #238 of 239 (permalink) Old 07-07-2019, 12:16 PM
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Correct, the original valve narrows for the last 15-20mm before the head, and the latest one does get fatter.

Also there is a stronger Ti alloy used, it's the same alloy that the exhaust valves are made of.
Have you managed to fit this kit yet John ? Keen to hear how it compares performance wise.
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post #239 of 239 (permalink) Old 07-07-2019, 01:23 PM
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Correct, the original valve narrows for the last 15-20mm before the head, and the latest one does get fatter.

Also there is a stronger Ti alloy used, it's the same alloy that the exhaust valves are made of.
Have you managed to fit this kit yet John ? Keen to hear how it compares performance wise.
Unfortunately not, it was ment to happen couple of weeks ago but my recent crash destroyed the bike so all time and money has gone into repairs.
Looking like it won't happen until the end of the year at the moment 😢
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