292 Type B motor - ArcticChat.com - Arctic Cat Forum

 
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post #1 of 5 Old 03-23-2007, 10:09 PM Thread Starter
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Can anyone tell me about the difference between type A and B motors that came in 72,73 Lynx 292s? I know how to tell them apart, but what is the real difference and is one more valuable?

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post #2 of 5 Old 03-24-2007, 03:05 PM
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The B engine has a bigger intake port than the A engine. I've been told that the port timing between the two is the same, but the port area between the actual port window and carburetor mounting flange is bigger on the B version. I've got several of both engines and I've been going to measure the port heights of an A and a B just to verify that they are the same, but haven't done it yet. As far as I know this is the only difference between the two. As far as value, guys that are building one lunger racers for the stock class would probably prefer the B model, as they're rated at 22hp. The A model is 20hp. But if someone is restoring a sled or if they're building a mod class racer that's going to be ported anyhow, I'd say their isn't much difference in dollar value between the two engines, IMHO.

I used to race with hex clutches....
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post #3 of 5 Old 05-09-2007, 11:19 AM
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Thats about right, but ive only seen the a rated at 19.5 and the b rated at 20 so im not all that sure, ive got both and i prefer the b as it has more power but like you said mod racers are ported anyway so.
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post #4 of 5 Old 05-12-2007, 04:32 PM
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just picked up one of these motors this winter. how do I know if it is an A or B motor?
Richard

Richard

Regina, Saskatchewan

www.sasksnowmobile.com
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post #5 of 5 Old 06-19-2007, 01:24 AM
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It will say either 'A Series' or 'B Series' on the Kawasaki engine tag on the fan shroud.

Waldo

04 King Cat Mountain Mod - Black - Lightweight - **ORANGE PARTS ARE FOR SALE**
97 ZRT 600 - Magic Triples - Reeds - AGLT - Soon to get a 700 kit
80 Trailcat 3000 - Very nice original
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72 292 Puma Mod - 71 King hood/pan - Early small tank and Lynx seat - T4B292 w/ reed, TM38 and custom pipe- Way cool toy!

If you need dyno testing, custom porting or pipes made, contact me as I do this to support my addiction!
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