Zxr 750 radiator options.UPDATED - PLEASE HELP ME.. AGAIN
Zxr 750 radiator options.UPDATED - PLEASE HELP ME.. AGAIN
Hi all.
My j1 has had a stone through the rad.
Are there any different rads that I can use?
Namely smaller ones. I know you can get r1 expansion bottles to replace the under seat unit? Anyone remember what year?
But are there any small radiators?
Appreciate any help!
Cheers
My j1 has had a stone through the rad.
Are there any different rads that I can use?
Namely smaller ones. I know you can get r1 expansion bottles to replace the under seat unit? Anyone remember what year?
But are there any small radiators?
Appreciate any help!
Cheers
Last edited by robz on Sat Dec 17, 2016 5:39 pm, edited 1 time in total.
- zxrmad
- Warming up
- Posts: 57
- Joined: Sun May 15, 2016 1:40 pm
- Bike: ZXR750
- State: Queensland
- Location: Mackay, Qld
Re: Zxr 750 radiator options.
Just wondering why you'd want a smaller radiator? Any J,K,L or M radiator would bolt straight in. Not 100% sure about the later P model but I think it will too
Current bikes... '93 ZXR750R M1, '95 ZXR750 L3, '95 ZXR750 track bike, '96 Bimota sb6, '99 Bimota db4, '08 Honda VTX1800, '94 Honda CB250, '00 Honda XR200, CBR400rr race bike, '49 BSA C10 250.
Re: Zxr 750 radiator options.
Sorry didn't explain that. My rad seems to touch the headers slightly.
Makes a slightly annoying noise. Haha.
Makes a slightly annoying noise. Haha.
- greenman43
- KSRC Regular
- Posts: 675
- Joined: Fri May 06, 2005 10:01 pm
- Bike: ZX6R
- State: New South Wales
- Location: Brooklyn NSW
- Contact:
Re: Zxr 750 radiator options.
ZX9 B rad also bolts up, but you've got to get creative with the thermostat housing, and get rid of the lower mounting bracket (which is a good idea to do, anyway).
If your pipe is interfering with the rad, a smaller rad isn't the solution. Sounds like a problem with the rad mounts to me.
Cheers,
Brian
If your pipe is interfering with the rad, a smaller rad isn't the solution. Sounds like a problem with the rad mounts to me.
Cheers,
Brian
07 ZX10R track 09 ZX6R road/track 93 ZXR750 race 89 GPZ900 project
Do not walk behind me, for I may not be leading
Do not walk in front of me, for I may not be following
Do not walk alongside me, for the path may be narrow
Just piss off and leave me alone
Do not walk behind me, for I may not be leading
Do not walk in front of me, for I may not be following
Do not walk alongside me, for the path may be narrow
Just piss off and leave me alone
Re: Zxr 750 radiator options.
Cheers for that.
I went for a same replacement. I will be having a good look at the mount. Having a Bent bar didn't pass my thoughts
Will let you know my progress
Thanks a lot!
I went for a same replacement. I will be having a good look at the mount. Having a Bent bar didn't pass my thoughts

Will let you know my progress
Thanks a lot!
- greenman43
- KSRC Regular
- Posts: 675
- Joined: Fri May 06, 2005 10:01 pm
- Bike: ZX6R
- State: New South Wales
- Location: Brooklyn NSW
- Contact:
Re: Zxr 750 radiator options.
No worries 

07 ZX10R track 09 ZX6R road/track 93 ZXR750 race 89 GPZ900 project
Do not walk behind me, for I may not be leading
Do not walk in front of me, for I may not be following
Do not walk alongside me, for the path may be narrow
Just piss off and leave me alone
Do not walk behind me, for I may not be leading
Do not walk in front of me, for I may not be following
Do not walk alongside me, for the path may be narrow
Just piss off and leave me alone
- zxrmad
- Warming up
- Posts: 57
- Joined: Sun May 15, 2016 1:40 pm
- Bike: ZXR750
- State: Queensland
- Location: Mackay, Qld
Re: Zxr 750 radiator options.
Yes, as Greenman say, most likely a bent bracket or something there. Also possible that a previous owner has put a set of headers on that are a slightly different radius?
Current bikes... '93 ZXR750R M1, '95 ZXR750 L3, '95 ZXR750 track bike, '96 Bimota sb6, '99 Bimota db4, '08 Honda VTX1800, '94 Honda CB250, '00 Honda XR200, CBR400rr race bike, '49 BSA C10 250.
- Nelso
- VIP MEMBER
- Posts: 3691
- Joined: Wed Feb 13, 2008 9:22 pm
- Bike: ZRX
- State: New South Wales
- Location: Wollongong
Re: Zxr 750 radiator options.
Are any of the later model ZXR radiators the same as the H2? The H1 is flat and the H2 is a bit larger and curved, but they both have a separate cap/thermostat housing to the radiator itself. Are any of the later models the same as the H2, or did they have a cap on the radiator itself?
Green '08 ZRX1200 Road bike
Green 2012 ZX10 Track/race bike
Green '89 H1 ZXR750 race bike
'89 RMX250 motard race bike
2015 YZ450
2017 KTM EXC300
Green 2012 ZX10 Track/race bike
Green '89 H1 ZXR750 race bike
'89 RMX250 motard race bike
2015 YZ450
2017 KTM EXC300
- greenman43
- KSRC Regular
- Posts: 675
- Joined: Fri May 06, 2005 10:01 pm
- Bike: ZX6R
- State: New South Wales
- Location: Brooklyn NSW
- Contact:
Re: Zxr 750 radiator options.
Don't know about the H2 aspect, but JKLM and 9B rads all had the cap on the radiator itself.
07 ZX10R track 09 ZX6R road/track 93 ZXR750 race 89 GPZ900 project
Do not walk behind me, for I may not be leading
Do not walk in front of me, for I may not be following
Do not walk alongside me, for the path may be narrow
Just piss off and leave me alone
Do not walk behind me, for I may not be leading
Do not walk in front of me, for I may not be following
Do not walk alongside me, for the path may be narrow
Just piss off and leave me alone
Re: Zxr 750 radiator options.
Welli fucked up. Haha
Seems I bought a h2 rad? Looks the same but no cap and thermostat pipe is in different place.
Should have looked more closely. Having to send that back and try again. Bugger
Seems I bought a h2 rad? Looks the same but no cap and thermostat pipe is in different place.
Should have looked more closely. Having to send that back and try again. Bugger
- Nelso
- VIP MEMBER
- Posts: 3691
- Joined: Wed Feb 13, 2008 9:22 pm
- Bike: ZRX
- State: New South Wales
- Location: Wollongong
Re: Zxr 750 radiator options.
Where are you at? I have a ZX6 radiator that I would swap for that H2 radiator.robz wrote:Welli fucked up. Haha
Seems I bought a h2 rad? Looks the same but no cap and thermostat pipe is in different place.
Should have looked more closely. Having to send that back and try again. Bugger
Green '08 ZRX1200 Road bike
Green 2012 ZX10 Track/race bike
Green '89 H1 ZXR750 race bike
'89 RMX250 motard race bike
2015 YZ450
2017 KTM EXC300
Green 2012 ZX10 Track/race bike
Green '89 H1 ZXR750 race bike
'89 RMX250 motard race bike
2015 YZ450
2017 KTM EXC300
Re: Zxr 750 radiator options.
hi all again...
well i went with the cowards option... K seal - amazing... for 400 miles.. got to the bike last night and it had wee'd everywhere again... bugger it!
sorry nelso - never saw that message - but im on england so prob would have been no use to you... haha
so i need another rad again...
greenman... how do you mean get creative, i can do that... well i can bodge it im sure.. do you know of any how to's that anyone has put together..?
are all the hoses going to the same place so you dont need new ones?
cheers all... oh and merry bloody xmas

well i went with the cowards option... K seal - amazing... for 400 miles.. got to the bike last night and it had wee'd everywhere again... bugger it!
sorry nelso - never saw that message - but im on england so prob would have been no use to you... haha
so i need another rad again...
greenman... how do you mean get creative, i can do that... well i can bodge it im sure.. do you know of any how to's that anyone has put together..?
are all the hoses going to the same place so you dont need new ones?
cheers all... oh and merry bloody xmas


- greenman43
- KSRC Regular
- Posts: 675
- Joined: Fri May 06, 2005 10:01 pm
- Bike: ZX6R
- State: New South Wales
- Location: Brooklyn NSW
- Contact:
Re: Zxr 750 radiator options.UPDATED - PLEASE HELP ME.. AGAI
The inlet for the thermostat is in a different place on the 9B rad - I wasn't running a thermo, so it wasn't an issue for me, so I can't tell you the fix.
Cheers,
Brian
Cheers,
Brian
07 ZX10R track 09 ZX6R road/track 93 ZXR750 race 89 GPZ900 project
Do not walk behind me, for I may not be leading
Do not walk in front of me, for I may not be following
Do not walk alongside me, for the path may be narrow
Just piss off and leave me alone
Do not walk behind me, for I may not be leading
Do not walk in front of me, for I may not be following
Do not walk alongside me, for the path may be narrow
Just piss off and leave me alone
Re: Zxr 750 radiator options.UPDATED - PLEASE HELP ME.. AGAI
I see. Not running a thermostat. Brave lol.
Well what are the odds of this... one turned up only 10mins away from me so I've bought it and hopefully this problem will be sorted. Will keep the broken one in case I can have it repaired.
Well what are the odds of this... one turned up only 10mins away from me so I've bought it and hopefully this problem will be sorted. Will keep the broken one in case I can have it repaired.
- greenman43
- KSRC Regular
- Posts: 675
- Joined: Fri May 06, 2005 10:01 pm
- Bike: ZX6R
- State: New South Wales
- Location: Brooklyn NSW
- Contact:
Re: Zxr 750 radiator options.UPDATED - PLEASE HELP ME.. AGAI
Not brave - on track it runs 10 degrees cooler without one
07 ZX10R track 09 ZX6R road/track 93 ZXR750 race 89 GPZ900 project
Do not walk behind me, for I may not be leading
Do not walk in front of me, for I may not be following
Do not walk alongside me, for the path may be narrow
Just piss off and leave me alone
Do not walk behind me, for I may not be leading
Do not walk in front of me, for I may not be following
Do not walk alongside me, for the path may be narrow
Just piss off and leave me alone