PJS Super Cylinder Reed Cages

[Birkline]

Howdy everyone, I'm trying to find a set of PJS super cylinder reed cages. They're the older version cylinders and the cages are 4 bolt not the 6 bolt.
So if anyone happens to have a set or know who might, could you please let me know??
I'm also thinking about making a set of adapter plates but I'm kinda worried about the thickness and how far/close the carbs & filters will be to the hull and if I'll have to find a set of offset filters?? Also looking for a set (8) of nuts for the cylinders to the cases. They're different and I've never seen anything like them? They're a female for the base and they have a female torx to torque'em down?
I added a picture of'em.
Thanks a bunch......

 

[fastgtfairlane]

I believe they're 650 reeds.

 

[WFO Speedracer]

I believe they're 650 reeds.

You can see the size of the 650 reed cages below the Supercylinder ports, these reeds are much bigger than the 650 reeds.

This chart may or may not be of use to you but here it is , those are Yamaha two stroke twin reed cages with four mounting holes, RD, Rz ,Banshee etc :

Most likely they used some kind of existing reed cage configuration when they made these cylinders.

 

[Birkline]

They're definitely bigger than oem.

 

[WFO Speedracer]

On the nuts can you use something like this or is it limited access to tighten the nuts ?

https://www.aliexpress.us/item/3256803219990732.html?spm=a2g0o.productlist.main.21.774e736dW6Ir0b&algo_pvid=7c493918-23d6-4b8b-b4af-bc634e931902&algo_exp_id=7c493918-23d6-4b8b-b4af-bc634e931902-10&pdp_npi=4%40dis%21USD%217.91%217.91%21%21

 

[Jiffyjet]

Early 650 cylinder nuts are a flanged open top stainless steel nut that works great.

 

[Jiffyjet]

I always thought the true Supercylinder motors used the reeds in the 750 cases and the Viper 7000 and 9000 used the reeds in the cylinders and a 650 lower end. I have a complete unassembled PJS 85mm motor for sale…if anyone is interested. Some spares too.

 

[blasterdude]

They are 1984-1985 Kawasaki KX 500 reed cages. OEM part numbers:

VALVE-ASSY-REED 12021-1051 Gasket,REED VALVE 11009-1360 BOYESEN POWER REEDS 626.

This should aid your search.

 

[blasterdude]

KX 500 reed cage on top and a stock 650 reed cage on the bottom. Also, a picture of the boyesen reeds and a piston modded for the cylinder.

 

[Birkline]

Yep that's the one. I've been trying to find a set but so far no luck.

 

[Birkline]

On the nuts can you use something like this or is it limited access to tighten the nuts ?

https://www.aliexpress.us/item/3256803219990732.html?spm=a2g0o.productlist.main.21.774e736dW6Ir0b&algo_pvid=7c493918-23d6-4b8b-b4af-bc634e931902&algo_exp_id=7c493918-23d6-4b8b-b4af-bc634e931902-10&pdp_npi=4%40dis%21USD%217.91%217.91%21%21

I have 12pt on my other 550sx/650sx swap. Your definitely right on no room to get a a good grip on it. I think I'll be using a 12pt but in the tight spots I'll use the best ones.

 

[Birkline]

I always thought the true Supercylinder motors used the reeds in the 750 cases and the Viper 7000 and 9000 used the reeds in the cylinders and a 650 lower end. I have a complete unassembled PJS 85mm motor for sale…if anyone is interested. Some spares too.

Some of them do but I'm not sure what yr they changed from the 4 bolt to the 5/6 bolt??