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Old 09-27-2012, 10:30 PM   #1 (permalink)
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93 Mach 1 617 or 670

I recently picked up a 93 mach 1. the guy said it was a 617, but i read on the internet that 93 had a 670 how can i tell the difference????

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Old 09-28-2012, 03:54 AM   #2 (permalink)
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There should be a tag on the top of the recoil that will say the engine type. If it says Tpe 643, it's a 617cc. As far as I know the 93's were all 670's.
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Old 09-28-2012, 05:54 PM   #3 (permalink)
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unfortunetly I guess that tag on top of the recoil is gone. Is there any other way to tell?????
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Old 09-28-2012, 09:07 PM   #4 (permalink)
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What size carbs are on it. And what color is the head?

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Old 09-29-2012, 02:25 PM   #5 (permalink)
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I will attach some pics , i don't how to tell what size the carbs, this is my first sled i'm pretty excited and can't wait for snow. I just wannna know what engine it has so i could look into parts availabillity.
Thanks for the help guys this forum has been very informative!!!!
Attached Thumbnails
93 Mach 1 617 or 670-2012-09-29-14.21.12.jpg   93 Mach 1 617 or 670-2012-09-29-14.21.27.jpg   93 Mach 1 617 or 670-2012-09-29-14.22.58.jpg   93 Mach 1 617 or 670-2012-09-29-14.27.11.jpg   93 Mach 1 617 or 670-2012-09-29-14.21.38.jpg  

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Old 09-29-2012, 04:48 PM   #6 (permalink)
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Look at the base of the cylinder behind the clutch and see what the stamping says.
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Old 09-29-2012, 07:15 PM   #7 (permalink)
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all i can see is a small stamp that says 1188 an "Made in Austria"
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Old 09-30-2012, 08:52 AM   #8 (permalink)
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Not sure what the 1188 is but your sled came stock with the 670. I don't see any early 90s Ski doo with a 617.

Looking further, I can't find a 617 in any Ski doo. Thinking someone misspoke...six-seventy vs six-seventeen.
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Old 09-30-2012, 11:22 AM   #9 (permalink)
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The 617 was an option on the 1991/92 Mach 1, and had a black head (I have 2 of them, Type 643 engine=617cc) Your sled is a rotary valve twin, but not sure on the size.
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Old 09-30-2012, 05:00 PM   #10 (permalink)
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That should be a 670, I would call your local doo dealer and see if they can tell you off the vin.
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Old 09-30-2012, 05:13 PM   #11 (permalink)
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Possibly be a583 as well. Not sure if that was an option in 93? Our a possible transplant. your also going to have trouble registering without s/n for motor

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Old 09-30-2012, 06:00 PM   #12 (permalink)
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Of course. The 643 is a 617. =) I missed that. Looks like it was stock on the 92 Machs. In 93 it came in the Formula Plus X.

Here's some info from another siteon head cover colors. This color coding may have started in 94 however.
670=purple
617=black
583=red
580=blue
494=yellow
470, 521=bare aluminum
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Old 09-30-2012, 07:24 PM   #13 (permalink)
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Some of the older 583's were also bare aluminum. And if I remember correctly there was a second head color in 93 for the 670

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Old 09-30-2012, 11:46 PM   #14 (permalink)
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I didn't think the 670 came out until mid 90's? or maybe even 96?
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Old 10-01-2012, 05:59 AM   #15 (permalink)
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1993. It came out for that model year Mach 1.
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Old 11-07-2012, 11:26 AM   #16 (permalink)
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Waiting on info from my boss who said he will sell me his 2 - 92 mach's for a good price so reading as much as I can. Sounds like a good reliable sled for entry level to see if I want to take it farther. Hope it works out for the OP.
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Old 11-08-2012, 11:01 AM   #17 (permalink)
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there good and heavy sleds but still fun to ride. lacking in suspension for sure. but hey when you start off on a prs chassis it makes the next upgrade feel even bigger.
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Old 11-08-2012, 11:35 AM   #18 (permalink)
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That is the one thing lngering in my mind if the ride will be so rough it won't be enjoyable. Snow is hit or miss in Chicagoland, last year was zero, year before I watched sleds for 2 months straight on the trail in front of my house screaming by because it snowed non-stop. I haven't riden a sled for over 20 years and my friend is telling me an old one will beat the snot out of me to the point I won't, or my wife, like it. Really sitting on the fence if I should buy late 90's models.
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Old 11-08-2012, 02:02 PM   #19 (permalink)
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You can always upgrade the suspension to a newer one with more travel.
Even the 93 skid will give a decent ride when set up right.
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Old 11-08-2012, 04:01 PM   #20 (permalink)
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Quote:
Originally Posted by Red89gt View Post
That is the one thing lngering in my mind if the ride will be so rough it won't be enjoyable. Snow is hit or miss in Chicagoland, last year was zero, year before I watched sleds for 2 months straight on the trail in front of my house screaming by because it snowed non-stop. I haven't riden a sled for over 20 years and my friend is telling me an old one will beat the snot out of me to the point I won't, or my wife, like it. Really sitting on the fence if I should buy late 90's models.
You may be confusing entry level sled with entry level price. I'm not sure a new rider's first sled should be a PRS Mach. I'd be thinking 380 or a nice MXZ 440. Just a thought.
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