ZXR 750 L1

Discussions and updates on your new bike, your new build, your wishes, wants and desires
Post Reply
User avatar
Skub
Posts: 14892
Joined: Mon Mar 16, 2020 5:32 pm
Location: Norn Iron
Has thanked: 13109 times
Been thanked: 14170 times

Re: ZXR 750 L1

Post by Skub »

dern wrote: Sun Feb 06, 2022 6:11 pm The best thing about doing the clearances on this bike is that the rockers push to one side so you don't have to remove the cams. Huge time saver. You can see the springs in this picture...
Image
Same as the ZZR1100,it makes valves clearances a doddle.
"Be kind to past versions of yourself that didn't know what you know now."
Walt Whitman
https://soundcloud.com/skub1955
Top
Mr. Dazzle
Posts: 16347
Joined: Mon Mar 16, 2020 7:57 pm
Location: Milton Keynes
Has thanked: 2417 times
Been thanked: 6369 times

Re: ZXR 750 L1

Post by Mr. Dazzle »

I'll tell you what makes valve clearances a doddle.

Pushrods!
Top
User avatar
KungFooBob
Posts: 17500
Joined: Sat Mar 14, 2020 1:04 pm
Location: The content of this post is not AI generated.
Has thanked: 627 times
Been thanked: 9495 times

Re: ZXR 750 L1

Post by KungFooBob »

I'll tell you what makes valve clearances a doddle.

Hydraulic tappets!
Top
Le_Fromage_Grande
Posts: 12161
Joined: Mon Mar 16, 2020 6:40 pm
Location: On the road to nowhere
Has thanked: 602 times
Been thanked: 4528 times

Re: ZXR 750 L1

Post by Le_Fromage_Grande »

I'll tell you what makes valve clearances a doddle, two strokes.

Weird having rockers with bucket and shim valves.
Top
BBB
Posts: 255
Joined: Mon Apr 19, 2021 10:56 am
Has thanked: 396 times
Been thanked: 118 times

Re: ZXR 750 L1

Post by BBB »

How do the rockers slide? I'm struggling to visualise it as they look bolted in place.
Top
User avatar
KungFooBob
Posts: 17500
Joined: Sat Mar 14, 2020 1:04 pm
Location: The content of this post is not AI generated.
Has thanked: 627 times
Been thanked: 9495 times

Re: ZXR 750 L1

Post by KungFooBob »

I assume they slide on the shafts with the springs on them (don't confuse the followers with the cams/lobes)

Desmo followers on the aircooled heads slide on the shaft once a clip is removed.
Top
BBB
Posts: 255
Joined: Mon Apr 19, 2021 10:56 am
Has thanked: 396 times
Been thanked: 118 times

Re: ZXR 750 L1

Post by BBB »

Got you, didn't see the followers, had stupidly thought shim and bucket. Makes sense now, thank you.
Top
User avatar
mangocrazy
Posts: 8855
Joined: Tue Dec 22, 2020 9:58 pm
Has thanked: 2556 times
Been thanked: 4167 times

Re: ZXR 750 L1

Post by mangocrazy »

Mr. Dazzle wrote: Sun Feb 06, 2022 8:27 pm I'll tell you what makes valve clearances a doddle.

Pushrods!
Probably because you have to adjust them every five minutes... :D
There is no cloud, just somebody else's computer.
Top
User avatar
dern
Posts: 2538
Joined: Wed Aug 18, 2021 8:51 am
Has thanked: 1183 times
Been thanked: 2277 times

Re: ZXR 750 L1

Post by dern »

KungFooBob wrote: Sun Feb 06, 2022 8:41 pm I'll tell you what makes valve clearances a doddle.

Hydraulic tappets!
True. I'll do a mondeo next ;)
Top
User avatar
dern
Posts: 2538
Joined: Wed Aug 18, 2021 8:51 am
Has thanked: 1183 times
Been thanked: 2277 times

Re: ZXR 750 L1

Post by dern »

Thanks to a superb facebook zxr group I've now got a new zx7r sleeve with adapters and a replacement pivot bolt on the way. Didn't mention the pivot bolt but the threads have been forced at some point and are somewhat damaged.

Image
Top
User avatar
KungFooBob
Posts: 17500
Joined: Sat Mar 14, 2020 1:04 pm
Location: The content of this post is not AI generated.
Has thanked: 627 times
Been thanked: 9495 times

Re: ZXR 750 L1

Post by KungFooBob »

Mr. Dazzle wrote: Sun Feb 06, 2022 8:27 pm I'll tell you what makes valve clearances a doddle.

Pushrods!
dern wrote: Mon Feb 07, 2022 8:27 am
KungFooBob wrote: Sun Feb 06, 2022 8:41 pm I'll tell you what makes valve clearances a doddle.

Hydraulic tappets!
True. I'll do a mondeo next ;)
My Enfield has pushrods and hydraulic tappets.

WIN/WIN!
Top
Mr. Dazzle
Posts: 16347
Joined: Mon Mar 16, 2020 7:57 pm
Location: Milton Keynes
Has thanked: 2417 times
Been thanked: 6369 times

Re: ZXR 750 L1

Post by Mr. Dazzle »

KungFooBob wrote: Mon Feb 07, 2022 8:37 am My Enfield has pushrods and hydraulic tappets.

WIN/WIN!
They really don't want those valves to move quickly.
Top
User avatar
dern
Posts: 2538
Joined: Wed Aug 18, 2021 8:51 am
Has thanked: 1183 times
Been thanked: 2277 times

Re: ZXR 750 L1

Post by dern »

Looks like whoever did the swing arm bearings last time lubricated them with copperslip!
Top
User avatar
KungFooBob
Posts: 17500
Joined: Sat Mar 14, 2020 1:04 pm
Location: The content of this post is not AI generated.
Has thanked: 627 times
Been thanked: 9495 times

Re: ZXR 750 L1

Post by KungFooBob »

Should have bought this one instead.

No restoration required :)

https://iconicmotorbikeauctions.com/auc ... -in-crate/
Top
User avatar
mangocrazy
Posts: 8855
Joined: Tue Dec 22, 2020 9:58 pm
Has thanked: 2556 times
Been thanked: 4167 times

Re: ZXR 750 L1

Post by mangocrazy »

Were the model designations different for Murkins? That is clearly a ZXR750-K2 but the auctioneers are touting it as a ZX-7R.
There is no cloud, just somebody else's computer.
Top
User avatar
Skub
Posts: 14892
Joined: Mon Mar 16, 2020 5:32 pm
Location: Norn Iron
Has thanked: 13109 times
Been thanked: 14170 times

Re: ZXR 750 L1

Post by Skub »

Crazy dough.
"Be kind to past versions of yourself that didn't know what you know now."
Walt Whitman
https://soundcloud.com/skub1955
Top
User avatar
Yorick
Posts: 19927
Joined: Sat Mar 14, 2020 8:20 pm
Location: Paradise
Has thanked: 12605 times
Been thanked: 8536 times

Re: ZXR 750 L1

Post by Yorick »

Skub wrote: Tue Feb 15, 2022 7:42 pmCrazy dough.
Image
Top
User avatar
mangocrazy
Posts: 8855
Joined: Tue Dec 22, 2020 9:58 pm
Has thanked: 2556 times
Been thanked: 4167 times

Re: ZXR 750 L1

Post by mangocrazy »

Thankyou for that post - it made me remember that I have a loaf that's been in the airing cupboard for too long and needs to go in the oven... :mrgreen:
There is no cloud, just somebody else's computer.
Top
User avatar
Skub
Posts: 14892
Joined: Mon Mar 16, 2020 5:32 pm
Location: Norn Iron
Has thanked: 13109 times
Been thanked: 14170 times

Re: ZXR 750 L1

Post by Skub »

Yorick wrote: Tue Feb 15, 2022 7:44 pm
Skub wrote: Tue Feb 15, 2022 7:42 pmCrazy dough.
Image
I want toast now. :(
"Be kind to past versions of yourself that didn't know what you know now."
Walt Whitman
https://soundcloud.com/skub1955
Top
User avatar
Yorick
Posts: 19927
Joined: Sat Mar 14, 2020 8:20 pm
Location: Paradise
Has thanked: 12605 times
Been thanked: 8536 times

Re: ZXR 750 L1

Post by Yorick »

Skub wrote: Tue Feb 15, 2022 7:59 pm
Yorick wrote: Tue Feb 15, 2022 7:44 pm
Skub wrote: Tue Feb 15, 2022 7:42 pmCrazy dough.
Image
I want toast now. :(
Top
Post Reply

Return to “Projects, Owners Bikes, Updates”