1977 Yamaha TZ750

Anything you like about motorbikes
User avatar
weeksy
Site Admin
Posts: 22957
Joined: Sat Mar 14, 2020 12:08 pm
Has thanked: 5504 times
Been thanked: 12764 times

1977 Yamaha TZ750

Post by weeksy »

Jody
Posts: 1697
Joined: Fri Mar 20, 2020 11:49 am
Location: Biarritz in Summer, Cornwall In Autumn, Courchevel in Winter
Has thanked: 2000 times
Been thanked: 1275 times

Re: 1977 Yamaha TZ750

Post by Jody »

Its a bit wonky !
JackyJoll
Posts: 3664
Joined: Sun May 03, 2020 10:11 pm
Has thanked: 264 times
Been thanked: 1242 times

Re: 1977 Yamaha TZ750

Post by JackyJoll »

They only want “serious enquiries.”

Don’t just laugh down the phone at them.
The Spin Doctor
Posts: 4045
Joined: Mon Mar 16, 2020 6:17 pm
Has thanked: 2636 times
Been thanked: 1498 times

Re: 1977 Yamaha TZ750

Post by The Spin Doctor »

It's got low mileage tyres though!
"If a man does not keep pace with his companions, perhaps it is because he hears a different drummer." Henry David Thoreau
www.ko-fi.com/survivalskills www.survivalskillsridertraining.co.uk www.facebook.com/survivalskills
Le_Fromage_Grande
Posts: 11129
Joined: Mon Mar 16, 2020 6:40 pm
Location: The road of many manky motorcycles
Has thanked: 626 times
Been thanked: 4072 times

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
Honda Owner
User avatar
ZRX61
Posts: 4858
Joined: Tue Mar 17, 2020 4:05 pm
Location: Solar Blight Valley
Has thanked: 1452 times
Been thanked: 1335 times

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.
Le_Fromage_Grande
Posts: 11129
Joined: Mon Mar 16, 2020 6:40 pm
Location: The road of many manky motorcycles
Has thanked: 626 times
Been thanked: 4072 times

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.
Honda Owner
User avatar
Skub
Posts: 11869
Joined: Mon Mar 16, 2020 5:32 pm
Location: Norn Iron
Has thanked: 9691 times
Been thanked: 9706 times

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!
"Be kind to past versions of yourself that didn't know what you know now."
Walt Whitman
https://soundcloud.com/skub1955
Le_Fromage_Grande
Posts: 11129
Joined: Mon Mar 16, 2020 6:40 pm
Location: The road of many manky motorcycles
Has thanked: 626 times
Been thanked: 4072 times

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.
Honda Owner
User avatar
rodbargee
Posts: 1012
Joined: Sat Mar 14, 2020 1:30 pm
Location: N Yorks
Has thanked: 352 times
Been thanked: 969 times

Re: 1977 Yamaha TZ750

Post by rodbargee »

nothing is ever undersold at Padgetts.
User avatar
ZRX61
Posts: 4858
Joined: Tue Mar 17, 2020 4:05 pm
Location: Solar Blight Valley
Has thanked: 1452 times
Been thanked: 1335 times

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...
Le_Fromage_Grande
Posts: 11129
Joined: Mon Mar 16, 2020 6:40 pm
Location: The road of many manky motorcycles
Has thanked: 626 times
Been thanked: 4072 times

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
Honda Owner