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Old 10-30-2011, 05:12 PM   #1 (permalink)
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96 Formula 3 600 spark plugs and gaps

Hi everyone,

I just purchased a 1996 Formula 3 and it hasn't ran in a while. On the first pull it backfires and then 2nd pull it starts but smokes like crazy. I'm thinking it's because of old gas and needing new spark plugs. I also noticed while removing the spark plugs today that there was a bit of oil at the end of the plug, anything to be worried about?

Does anyone know the spark plug number and what to gap them at?

As you can see, I'm very new to the snowmobiling world and know very little about them. :-)

Thanks
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Old 10-30-2011, 05:30 PM   #2 (permalink)
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its gonna smoke til it warms up. probably got br9es or br8es plugs in it. id pull the carbs and clean and sync em. drain as much fuel as possible and put fresh and change your chain case oil.
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Old 10-30-2011, 06:18 PM   #3 (permalink)
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Appreciate it. Do you know what the gap is on the spark plugs and if oil at the bottom of the spark plug is something to be alarmed about?
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Old 10-30-2011, 06:23 PM   #4 (permalink)
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i wouldnt worry bout the oil on the plug they come pre gapped at .020 i've never had to regap mine
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Old 10-30-2011, 09:31 PM   #5 (permalink)
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They should be gapped @ 0.025 to 0.028.
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Old 10-31-2011, 06:59 PM   #6 (permalink)
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My owners manual says .018 gap and BR10es. Mine are gapped at .020 and BR9es. Smoking will probably subside after you ride it a little. Residual oil in the exhaust doesn't disipate until the pipes get hot and that doesn't happen until you romp on it a little.
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Old 10-31-2011, 07:45 PM   #7 (permalink)
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I purchased BR8ES's today and it started on the first pull, gapped at .28. Should I put BR10ES's and change the gap or don't bother? Also, where do I get an owners manual?
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Old 11-01-2011, 01:24 AM   #8 (permalink)
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I just got this 96 Formula and luckily it had the owners manual with it. Don't know where to get one besides ebay. The BR8 plugs are made to run hotter and may eventually cause other problems. I would stick within one heat range away from stock and gap them at .020". If you need any info out of the owners manual or shop manual for that matter, feel free to PM me and I'll do what I can. Got the 96 shop manual off of ebay (electronic) for less than $10 if that will help...just search 96 Ski Doo shop manual.
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Old 11-02-2011, 08:55 AM   #9 (permalink)
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You can get just about any Operators Manual straight from the BRP website.
BRP -- Operator's Guides

Doo a little browsing through the pinned threads on top of the thread page and you'll find your shop and parts manuals. Good luck.
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Old 11-14-2012, 12:50 AM   #10 (permalink)
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Did you ever resolve this problem?
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