98 1000 tcat CDI vs 97 900 tcat CDI - ArcticChat.com - Arctic Cat Forum

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Old 01-24-2006, 02:26 AM   #1
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I am planning to install a 98 Tcat 1000 engine in my 97 Tcat 900 chassis.

Then I have some questions to you guys.
I know that you can't use 98 CDI on the 97 wiring, but will the 97 CDI match the 98 1000 engine? Are there any difference in the timing curve between the 98 and 97 tcat CDI?

I have posted the same topic on Hardcoresledder and Amsnow. No respons?!
It is up to you now........

Thx
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Old 01-24-2006, 12:07 PM   #2
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You can do it. The switches work in reverse. I run a 93 T-cat box on my 98. I disconnected the carb safety switches, and it ran with the kill switch and the key in off position. You can change the switches to normally open if you like, run with the switches in reverse, or just run the 97 box. I think that the 98 box has a little hotter timing curve.
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Old 01-24-2006, 05:35 PM   #3
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 Quote:
Originally posted by fastcatt@Jan 24 2006, 12:07 PM
You can do it.* The switches work in reverse.* I run a 93 T-cat box on my 98.* I disconnected the carb safety switches, and it ran with the kill switch and the key in off position.* You can change the switches to normally open if you like, run with the switches in reverse, or just run the 97 box.* I think that the 98 box has a little hotter timing curve.
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Fastcatt,
Hotter timing curve? More advanced or more retarded curve? All the way 0-8500 rpm or bottom, mid or top?

Thx
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Old 01-25-2006, 09:59 AM   #4
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I think a little more advance all the way through. Not as much high rpm advance as a 93 Tcat
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Old 01-25-2006, 01:58 PM   #5
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Fastcatt - do you know what timing spesification the 98 1000 has, same as 900 - 27degr BTDC@4000 RPM? I guess the flywheel markings are the same on the 800-900-1000.

Thx
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Old 01-25-2006, 04:56 PM   #6
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Sled: big kitty zrt /zrt600/76z250
ATV: yamaha
2007 Mileage: too many
98 t-Cat has 27 degree BTDC or .171" BTDC
timing,but has a slightly shorter stroke. -.0157"
64.6mm yours has a 65.0 mm stroke
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