• Husqvarna Motorcycles Made In Sweden - About 1988 and older

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What engine is this?

S

Steve Ransom

Husqvarna
A Class
I supposedly bought a 1984 XC 250.
Frame number matches but the engine number is 0893-5124 and doesn't show on any engine numbers list I have seen.
Also I was told the cylinder may be a CR cylinder. I believe 1984 had water cooled CR's so if the cylinder is a CR it would have to be a 1983? Are there any identifying marks on the cylinder? I can only find a hand stamped 01 on the top near the reed cage. Thanks for your help and if needed I can post pics of the cylinder....since I seized it last Sunday and it is apart.
 
Go to "husky-parts" if you search it, it will come up. They have a listing on frames and numbers. Sometimes husqvarna got weird with serial numbers.

I gather your bike is air cooled maybe? Or is it the first LC that's why the number isn't showing up?

My '84 250wr has a cr cylinder from the factory and it's air cooled. Maybe they were using up the extra parts because they were changing over to liquid cooled.

I believe there was a mid year change over to liquid cooled on some. But I think the first LC bike was the 250cr.
 
The 250WR was water cooled half way through the year also, as far as I know the XC was air cooled the whole '84 year. With Huskys though, since everything swaps around there is no telling what parts or whole engines could have been swapped.

All '84 250 air cooled cylinders were the same, there was no WR or CR or XC specific air cooled cylinder in '84, they all used the '83 CR cylinder with the extra ports.
 
Metal tank, single shock, liquid cooled '83?

It's the wrong rear plastics it doesn't cover the pipe.
 
Kartwheel68 said:
The 250WR was water cooled half way through the year also, as far as I know the XC was air cooled the whole '84 year. With Huskys though, since everything swaps around there is no telling what parts or whole engines could have been swapped.

All '84 250 air cooled cylinders were the same, there was no WR or CR or XC specific air cooled cylinder in '84, they all used the '83 CR cylinder with the extra ports.
Click to expand...

Just curious do you mean divided transfer ports or the extra exhaust ports like modern powervalve bikes often have? My 250 experience is real limited.
 
The cr cylinders had two square Windows on both side of the rear intake ports. These were extra charging ports on the cr cylinder. There is four ports in the rear feeding the cylinder besides the side transfer ports. If I remember correctly all the air cooled cr cylinders had these two extra Windows.(430/500cr). My 430cr cylinder had them.

The 83wr a.c. is a calmed down ride when compared to the cr a.c. cylinder.
My 84 is a good hit for a.c. 250 with the cr porting and the wr tranny. Now I'm not sure if mine is an xc with the Motoplat flywheel or a wr with the sem ignition.
All I know if she rips. This 250 rips like my 81 250cr did.
 
Thanks Cart....your last sentence would explain it. And I'll assume the 1984 stock factory jetting would have taken that cylinder into consideration.
 
Bigbill said:
My 84 is a good hit for a.c. 250 with the cr porting and the wr tranny.
Click to expand...

Once again, all the air cooled '84 250s had that cylinder, you do not have a CR cylinder because there were no air cooled 250CRs in '84.

Steve Ransom said:
Thanks Cart....your last sentence would explain it. And I'll assume the 1984 stock factory jetting would have taken that cylinder into consideration.
Click to expand...

Yes, it should have. There is probably not a huge difference in the jetting.
 
My engine case number is 0891 making it 1984 by the husky serial numbers. It's a 84 250wr with cr porting. She has the 4.3 gallon tank. And different graphics than the 83 bike.
 
Bigbill said:
My engine case number is 0891 making it 1984 by the husky serial numbers. It's a 84 250wr with cr porting. She has the 4.3 gallon tank. And different graphics than the 83 bike.
Click to expand...

All air cooled 250s in '84 had that cylinder, you do not have "CR" porting.
 
When I pull her down in the spring for a refresh if it has those two extra square Windows in between the rear transfer ports and the side transfer ports it's a cr cylinder. I was told here the 84 250 wr bike had the cr cylinder here.

This bike runs like no 250 wr I ever had. I had two 83's.
 
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