Wiseco 810… to sleeve or not to sleeve?

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Re: Wiseco 810… to sleeve or not to sleeve?

17 Aug 2023 07:40
#888374
1977 z650

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Re: Wiseco 810… to sleeve or not to sleeve?

17 Aug 2023 08:13
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says The board requires you to be registered and logged in to view this forum.
Don't be ridiculous! It's only a flesh wound!

[strike]Wife's little bike... 1984 GPZ 550 Kerker and DynaJet stage I kit[/strike]
Wife's BIG bike......[strike] 1981 GPZ 1100 Kerker and [strike]factory FI[/strike] Mikuni RS34s W/ K&N pods[/strike] SOLD

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Re: Wiseco 810… to sleeve or not to sleeve?

17 Aug 2023 11:35
#888401
I have a Wiseco 810 kit in my garage, but I've held off because my stock engine is running great, and I don't like the fact that the liners will be so thin.  I wish there was a 2mm over kit, or even a 1mm kit, which will leave the liners thicker.  Maybe this a moot, and just something that sticks, needlessly, in my head, but i'd prefer a kit that left the liners thicker.

 
MTC use to offer a 67mm = 761cc kit (+1mm) and a 68mm = 784cc kit (+2mm) they do sometimes come up on Ebay and here (bought a NOS 761mm kit off a member on here 3 years ago)


 
1978 KZ650B2 w 1197cc Z1 engine
1977 KZ650B1 w 750cc Spectre engine
1979 KZ650C3 w 831cc Hot Rod engine
1978 KZ650C2 w 762cc DFI project
1977 KZ650C1 stock restoration project
1978 KZ650B2 modified project
1978 KZ650B2 Injected Drag 831cc
1980 Z1 Custom Frame Drag 1327cc
1981 Z50R Honda tow bike
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Re: Wiseco 810… to sleeve or not to sleeve?

17 Aug 2023 18:08
#888418
I have a Wiseco 810 kit in my garage, but I've held off because my stock engine is running great, and I don't like the fact that the liners will be so thin.  I wish there was a 2mm over kit, or even a 1mm kit, which will leave the liners thicker.  Maybe this a moot, and just something that sticks, needlessly, in my head, but i'd prefer a kit that left the liners thicker.


 
MTC use to offer a 67mm = 761cc kit (+1mm) and a 68mm = 784cc kit (+2mm) they do sometimes come up on Ebay and here (bought a NOS 761mm kit off a member on here 3 years ago)



 

Do you still have that 761cc kit?  

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Re: Wiseco 810… to sleeve or not to sleeve?

18 Aug 2023 12:30 - 18 Aug 2023 12:32
#888461
I have a Wiseco 810 kit in my garage, but I've held off because my stock engine is running great, and I don't like the fact that the liners will be so thin.  I wish there was a 2mm over kit, or even a 1mm kit, which will leave the liners thicker.  Maybe this a moot, and just something that sticks, needlessly, in my head, but i'd prefer a kit that left the liners thicker.




 
MTC use to offer a 67mm = 761cc kit (+1mm) and a 68mm = 784cc kit (+2mm) they do sometimes come up on Ebay and here (bought a NOS 761mm kit off a member on here 3 years ago)





 

Do you still have that 761cc kit?  

 
Yes, I have a 750 barrel bored and honed to take it, its going in a fuel injected project I have in the works. I got a excellent deal on here from a member in New Mexico, it was just the pistons, rings, and pins.

I always recommend MTC over Wiseco as they are made from better materials. My other go too would be JE.

 
1978 KZ650B2 w 1197cc Z1 engine
1977 KZ650B1 w 750cc Spectre engine
1979 KZ650C3 w 831cc Hot Rod engine
1978 KZ650C2 w 762cc DFI project
1977 KZ650C1 stock restoration project
1978 KZ650B2 modified project
1978 KZ650B2 Injected Drag 831cc
1980 Z1 Custom Frame Drag 1327cc
1981 Z50R Honda tow bike
Last edit: 18 Aug 2023 12:32 by Injected. Reason: sp
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Re: Wiseco 810… to sleeve or not to sleeve?

20 Aug 2023 23:45
#888547
I've been using the Kawasaki 750 sleeves in my 810 bigbore Z650 for over 10 years now, first with the high compression Wiseco's & now with low compression for a draw through turbo.
I lived in a tropic climate and started using an oil cooler but eventually removed it and no longer use it but I have an oil temp gauge.
The is another big bore option now available which is the Bagus Omega 850cc big bore kit with liners.
Bagus! motor cycle | KAWASAKI ZEPHYR 750 OMEGA PISTONS (bagus-mc.jp)
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