1977 Yamaha TZ750

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weeksy
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1977 Yamaha TZ750

Post by weeksy »

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Re: 1977 Yamaha TZ750

Post by Jody »

Its a bit wonky !
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Re: 1977 Yamaha TZ750

Post by JackyJoll »

They only want “serious enquiries.”

Don’t just laugh down the phone at them.
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Re: 1977 Yamaha TZ750

Post by The Spin Doctor »

It's got low mileage tyres though!
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Re: 1977 Yamaha TZ750

Post by Le_Fromage_Grande »

It's very original and very expensive, I'd like a go on one just to see what they're like, I reckon it's going to be about 130bhp as a TZ350 is about 65bhp, the power delivery will probably be interesting.

Though I doubt if that one runs as it should, the crank seals have probably gone hard and no longer seal
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Re: 1977 Yamaha TZ750

Post by ZRX61 »

Le_Fromage_Grande wrote: Mon Jul 12, 2021 10:37 am It's very original and very expensive, I'd like a go on one just to see what they're like, I reckon it's going to be about 130bhp as a TZ350 is about 65bhp, the power delivery will probably be interesting.

Though I doubt if that one runs as it should, the crank seals have probably gone hard and no longer seal
The bigger issue is the crankcases were of cheese & are likely to be warped all to hell. Someone in the US(?) started making new cases for them a few years ago.
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Re: 1977 Yamaha TZ750

Post by Le_Fromage_Grande »

It doesn't look like it's been run since 1976, I doubt if the crankcases warp with no use.
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Re: 1977 Yamaha TZ750

Post by Skub »

Fook.

There's some asking money for old race stuff,isn't there. I wonder what it'll actually fetch.

A few years ago I watched a mate spanner Tom Herron's old TZ750 for a parade run around the Dundrod UGP circuit. Another friend was Herron's team mate for a while and he got to ride the bike. It looked a lot easier to work on than any modern superbike!
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Re: 1977 Yamaha TZ750

Post by Le_Fromage_Grande »

Skub wrote: Mon Jul 12, 2021 4:27 pm Fook.

There's some asking money for old race stuff,isn't there. I wonder what it'll actually fetch.

A few years ago I watched a mate spanner Tom Herron's old TZ750 for a parade run around the Dundrod UGP circuit. Another friend was Herron's team mate for a while and he got to ride the bike. It looked a lot easier to work on than any modern superbike!
They're easy to work on, they're basically two TZ350 engines joined at the hip, if you can rebuild an LC, you can rebuild a TZ, but the good race engines are made up from carefully matched parts.

I should weigh my two brand new YPVS pistons to see how much difference there is in the weight of them, not that it matters on that bike because I haven't weighed the crank components.
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Re: 1977 Yamaha TZ750

Post by rodbargee »

nothing is ever undersold at Padgetts.
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Re: 1977 Yamaha TZ750

Post by ZRX61 »

Le_Fromage_Grande wrote: Mon Jul 12, 2021 4:15 pm It doesn't look like it's been run since 1976, I doubt if the crankcases warp with no use.
Unless that's why it was parked...
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Re: 1977 Yamaha TZ750

Post by Le_Fromage_Grande »

ZRX61 wrote: Wed Jul 14, 2021 1:38 am
Le_Fromage_Grande wrote: Mon Jul 12, 2021 4:15 pm It doesn't look like it's been run since 1976, I doubt if the crankcases warp with no use.
Unless that's why it was parked...
I hadn't thought of that
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