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Author Topic: Help confirming Piston Identity  (Read 2605 times)

Offline r1_pete

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Help confirming Piston Identity
« on: February 08, 2014, 03:04:18 PM »
I finally got round to stripping the bitsa engine, I'm pretty sure the whole top end is F2 - Head Barrels and Pistons, I'd just like some help confirming these are F2 pistons, I did expect a higher dome...
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2009 Yamaha XJR1300 sold
1977 CB750F2 café racer project. Sold
1972 CB750K2 hot rod. Sold
and an E-Type Jaguar that considers itself worthy of all my spare cash. Sold

1971 CB450
1978 Reliant Scimitar Cosworth.

Offline mickwinf

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Re: Help confirming Piston Identity
« Reply #1 on: February 08, 2014, 03:53:08 PM »
Hi Pete, turn piston upside down and the model code is stamped on it, I think 392( f1) or 410 (f2) 405 (k7)
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Love the 500 and 550 have a 500 called Lazarus under restoration

Offline Bryanj

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Re: Help confirming Piston Identity
« Reply #2 on: February 08, 2014, 04:15:34 PM »
Bottom picture L/H piston, if you enlarge it you can see 410 on the relieved area arround the gudgeon pin---so its an F2
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Offline r1_pete

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Re: Help confirming Piston Identity
« Reply #3 on: February 08, 2014, 05:32:12 PM »
thanks Both that's some good news on this rebuild
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2009 Yamaha XJR1300 sold
1977 CB750F2 café racer project. Sold
1972 CB750K2 hot rod. Sold
and an E-Type Jaguar that considers itself worthy of all my spare cash. Sold

1971 CB450
1978 Reliant Scimitar Cosworth.
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