need help with my bearcat 550!! - Snowmobile Forum: Your #1 Snowmobile Forum

madmaths · 12-19-2012, 08:38 PM

Hi last year i found very good help for my chain case rebuilt thanks again!! Hope I will be lucky again!!
First I'm sorry my English is not really good but I will try my best!!
Today I took my 1997 bearcat 550 for its first ride! last winter before storage the snowmobile work fine! but this year the engine is hard to start end wen i press on the feeder there a delay and some times the engine run really rough ( the feeder at max and the engine was not revving fast enough too move forward) spark plug are new. I remove both carburetor to see if any tings is stuck or look defect every tings look fine but the carbs was wet ....any one avec any tips for me!?? thanks a lot!! .

Snowweasel · 12-19-2012, 09:12 PM

When u pulled the old plugs and replaced them, how did they look? What color.

Sounds to me like you need to clean your carbs. And depending on the year i would replace the pilot jets and main jets. A service manual will tell u the stock jets for that sled. I would also give the clutches a cleaning. Use some compressed air to get any belt dust out of there.

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madmaths · 12-19-2012, 09:32 PM

Hi thanks for the fast respond!! I'm not a sled mecanic but is it possible to be a fire probleme?? Is there a way to isolate the light ans acc from the stator juste to make sure I dont have any ground? And about cleaning carbs any tips?? I'm not planning to keep this sled I juste want to make it run good thank alot!!!

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joshkidner · 12-19-2012, 09:47 PM

there is a guide on how to thoroughly clean the carbs in the how-to section of this forum. goodluck! btw idk if your sled has this, but my 87 has a sticker undr the hood stating plugs to use, jet size ect. thats very helpful info!!!

Snowweasel · 12-19-2012, 10:15 PM

I cant tell if its just the flash or what in the second picture. But looks to me like that plug is a little white. Could be a lean condition. I would deffinately clean the carbs and see what kind of results u get. Good luck.

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**kccats** · 12-20-2012, 07:12 AM

I was thinking the same! Take the carbs apart and take the Pilot jets (up the tube) and 'floss them with a thin piece of wire!

madmaths · 12-20-2012, 07:19 AM

Ok thanks!! This will be very helpfull!! Any one have any tips how to clean carbs but with out take it apart?? I'm just scare about broke any tings... The tube on the carbs look old... Dont want broke any tings becuse i want too sell the bearcat. Any tips?? And tonight I will chek too make sure i don't have any electrical probleme becuse one time i start my snowmobile and the headlight and the brake was not on! I will make sure I dont have any ground.
And wath are the 2 wire on the carbs?? Any way to diagnos those?? Thanks !! Alot and sorry again for my bad English!!

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madmaths · 12-20-2012, 07:24 AM

Quote:

Originally Posted by kccats

I was thinking the same! Take the carbs apart and take the Pilot jets (up the tube) and 'floss them with a thin piece of wire!

Yesterday I open the carbs ( the small tank where the gas are) but without removing the cable and the pipe on the carbs . Can I do the same for cleaning?? You are helpfull guys!! Thanks!

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**RJ Gleason** · 12-20-2012, 11:26 AM

You really have to remove the carbs to clean them properly.

COOKSTER · 12-20-2012, 11:44 AM

You can have both of those carbs off the sled and on your workbench in 10 minutes. You really need to completely disassemble and thoroughly clean the carbs.

joshkidner · 12-20-2012, 01:27 PM

Quote:

Originally Posted by COOKSTER

You can have both of those carbs off the sled and on your workbench in 10 minutes. You really need to completely disassemble and thoroughly clean the carbs.

I can have all 3 of mine off my indy triple in 5. I disconect the throttle from the lever and the choke also from the lever, loosen gas line clamps and intake boot clamps (that holds carbs on) and pull lines then carbs out!

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madmaths · 12-20-2012, 01:56 PM

Ok I will try !! Wath about the cable on te carb if i dont want to have to ajust back I only unsrew??

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COOKSTER · 12-20-2012, 02:33 PM

Quote:

Originally Posted by madmaths

Ok I will try !! Wath about the cable on te carb if i dont want to have to ajust back I only unsrew??

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Unscrew the large round caps on the top of the carbs pull out the slide and needle assemblies (still attached to the cables) and gently lay them out of the way. Using a 12 mm wrench unscrew and pull out the enricheners (choke) and lay them out of the way too. All that is left at this point are the fuel lines but make sure the fuel valve is shut off before you remove those.

madmaths · 12-20-2012, 02:37 PM

Nice!!! This will help!! I will work on it after my worck!!

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COOKSTER · 12-20-2012, 03:09 PM

Quote:

Originally Posted by madmaths

Nice!!! This will help!! I will work on it after my worck!!

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Make sure you remove the main jet tube (the tall brass one that you see when you look through the carb) it's like a tube inside a tube and it needs to be very clean, spray carb cleaner into it and blow out with compressed air. Soaking the carbs in carb cleaning solvent is best but most people don't have it so the aerosol carb cleaner is the next best thing.

**kccats** · 12-20-2012, 04:42 PM

The best tip is to use a heat gun to warm up the rubber boots, to softern to get the carbs off! Check out the How too section!

madmaths · 12-20-2012, 04:58 PM

So far it go good!! But how do I but this needle back?? The other one is fine but this one look like i won't stay in the hole
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madmaths · 12-20-2012, 05:06 PM

Other probleme the chok wire won't come off!!? All unsrew but its stuck any tips!? And this is the same side with the white spark plug!

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madmaths · 12-20-2012, 05:37 PM

Case close about the choke pluger!! It was stuck!! Still need tips about the needle thanks!!

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madmaths · 12-20-2012, 06:07 PM

Ok for my needle i remove the piston valve and figure how the needle was fix by the retainer but how to adjuste the needle there about 4 ajustement possible thanks!! I'm going good!! Not basld for a electromecanical!! Heheh

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