Snowmobile Forum: Your #1 Snowmobile Forum - Engine / Drivetrain http://www.snowmobileforum.com Any questions or comments related to your snowmobiles drivetrain. en Fri, 20 Nov 2009 23:21:55 GMT vBulletin 60 http://www.snowmobileforum.com/images/snowmobileforum/misc/rss.jpg Snowmobile Forum: Your #1 Snowmobile Forum - Engine / Drivetrain http://www.snowmobileforum.com Is this piston going bad? http://www.snowmobileforum.com/engine-drivetrain/40666-piston-going-bad.html Fri, 20 Nov 2009 21:50:01 GMT I am ordering a new piston and I am wondering if I should get 2. My guess is to have both cylinders bored with new rings and pistons.:dunno: I am ordering a new piston and I am wondering if I should get 2. My guess is to have both cylinders bored with new rings and pistons.:dunno:
Attached Thumbnails
Click image for larger version Name: pistons 2 003.jpg Views: N/A Size: 59.8 KB ID: 10879  Click image for larger version Name: pistons 2 004.jpg Views: N/A Size: 71.6 KB ID: 10880  
]]> Engine / Drivetrain TCOLLINS http://www.snowmobileforum.com/engine-drivetrain/40666-piston-going-bad.html Need Help Low Compression! http://www.snowmobileforum.com/engine-drivetrain/40645-need-help-low-compression.html Fri, 20 Nov 2009 02:23:59 GMT Left side 130 Right side 80 :eek: Just cleaned carbs and airbox. What can be done to fix compression? 1991 Yamaha Phazer II Left side 130 Right side 80 :eek: Just cleaned carbs and airbox. What can be done to fix compression? 1991 Yamaha Phazer II ]]> Engine / Drivetrain TCOLLINS http://www.snowmobileforum.com/engine-drivetrain/40645-need-help-low-compression.html bombardier/can-am 377/380 http://www.snowmobileforum.com/engine-drivetrain/40588-bombardier-can-am-377-380-a.html Thu, 19 Nov 2009 02:07:01 GMT bombardier/can-am 377/380

the 380 engine by can am (formerly known as the 377 bombardier) has been around a long time, i know it's a decent engine but can you beef it up? what about bigger carbuerators? after market exhaust? intake? anything? I'd donate MY balls but id rather see if i can give it some on its own. ]]> Engine / Drivetrain Gunther47 http://www.snowmobileforum.com/engine-drivetrain/40588-bombardier-can-am-377-380-a.html oil coming out of exhaust cant start it 700xc polaris motor http://www.snowmobileforum.com/engine-drivetrain/40574-oil-coming-out-exhaust-cant-start.html Wed, 18 Nov 2009 20:28:42 GMT I wrecked my 1998 700xc. then i bought a 2000 600xc with a blown motor put the 700 in it and when i try to start it it gets hard to pull and oil... I wrecked my 1998 700xc. then i bought a 2000 600xc with a blown motor put the 700 in it and when i try to start it it gets hard to pull and oil comes out of the exhaust.so i talked to mechanic at the local polaris dealership and he said that if the motor was on its side it could have leeked up in the heads so i drained the oil and let it sit filled the oil back up and tryed it again and it did the sme thing. any suggestions please ]]> Engine / Drivetrain ironman14201 http://www.snowmobileforum.com/engine-drivetrain/40574-oil-coming-out-exhaust-cant-start.html Can You Run A Cylinder Head That Has Some Pitting?!? http://www.snowmobileforum.com/engine-drivetrain/40560-can-you-run-cylinder-head-has.html Wed, 18 Nov 2009 14:40:31 GMT My 1996 Mach Z 780 needed a top-end rebuild. When I took off the cylinder head, I noticed that the middle combustion chamber has some pitting and... My 1996 Mach Z 780 needed a top-end rebuild. When I took off the cylinder head, I noticed that the middle combustion chamber has some pitting and also what looked like melted piston on it. The sealing surface is clean obviously with no markings.

I took out the Dremel and lightly sanded down the imperfections and now only have some pitting. It came out really nice and is smooth to the touch, but will this not work?

I dont care if I loose a little performace, I just want to make sure its safe for the engine, and will run right.

Thanks,
Matthew ]]> Engine / Drivetrain mwinters http://www.snowmobileforum.com/engine-drivetrain/40560-can-you-run-cylinder-head-has.html <![CDATA[primary & secondary on my indy500...how bad?]]> http://www.snowmobileforum.com/engine-drivetrain/40559-primary-secondary-my-indy500-how-bad.html Wed, 18 Nov 2009 14:31:21 GMT well im in the process of seeing all parts ill need to change primary clutch... Any ideas what all should be changed when changing clutch? Is the... well im in the process of seeing all parts ill need to change primary clutch...

Any ideas what all should be changed when changing clutch?

Is the secondary clutch pretty much done for since it has no adjustment left(sheive width)?

Is there any spots of excessive wear i should look at...?

what lube/grease do you use to lube the jackshaft and driveshaft bearings?






]]> Engine / Drivetrain Stagesrt4 http://www.snowmobileforum.com/engine-drivetrain/40559-primary-secondary-my-indy500-how-bad.html Pulled Carb. Out http://www.snowmobileforum.com/engine-drivetrain/40549-pulled-carb-out.html Wed, 18 Nov 2009 04:05:02 GMT Well I pulled carb and here is what I found. Pretty gunked up. Notice the 3 holes.:eek: Notice the middle hole! Well I pulled carb and here is what I found. Pretty gunked up. Notice the 3 holes.:eek: Notice the middle hole!
Attached Thumbnails
Click image for larger version Name: carb phazer 002.jpg Views: N/A Size: 111.8 KB ID: 10829  Click image for larger version Name: carb phazer 003.jpg Views: N/A Size: 111.1 KB ID: 10830  Click image for larger version Name: carb phazer 004.jpg Views: N/A Size: 148.1 KB ID: 10831  Click image for larger version Name: carb phazer 005.jpg Views: N/A Size: 154.1 KB ID: 10832  Click image for larger version Name: carb phazer 006.jpg Views: N/A Size: 144.9 KB ID: 10833  

]]> Engine / Drivetrain TCOLLINS http://www.snowmobileforum.com/engine-drivetrain/40549-pulled-carb-out.html 1991 Indy 500 running issues. http://www.snowmobileforum.com/engine-drivetrain/40503-1991-indy-500-running-issues.html Tue, 17 Nov 2009 12:34:57 GMT I have a 1991 Indy 500 that started giving me problems a few years back then quit running and then I moved and it sat for a few years and now I am... I have a 1991 Indy 500 that started giving me problems a few years back then quit running and then I moved and it sat for a few years and now I am trying to get it running again and not going so good.

First when I first started having issues I was getting some popping/backfiring out of the carbs and it would loose power like crazy then all of a sudden come back and one day I couldnt get it to start for nothing and about that time is when it went into storage while I was getting ready to move and then I brought it home where it sat for a few more years due to the lack of snow we had gotten.

I am trying to get it back up and going now but not having much luck. I am guessing the backfiring from the carbs was a coil issue. Is there any way to test the coil/s?

Also, I was able to get it running after somewhat but it wont stay running. I either have to have the choke on and never let off the throttle or sometimes it will run but not idle without the choke but mostly with the choke on. It also will flood out and foul the plugs in no time. It also runs kinda rough and is really low on power.

I am thinking of just finding some coils and put on there and see if that helps but would like to know if thats the issue first. Also, wondering if the stator would cause this also.

Any help would be great before I take it into the dealer and have em fix it and I dont really want to do that. :confused: ]]> Engine / Drivetrain Hippie459MN http://www.snowmobileforum.com/engine-drivetrain/40503-1991-indy-500-running-issues.html Suggestions Please. http://www.snowmobileforum.com/engine-drivetrain/40496-suggestions-please.html Tue, 17 Nov 2009 05:20:42 GMT First, let me start with im VERY mechanically inclined. VERY. So im not afraid of a large, and hard project. thats what i live for. and ive owned... First, let me start with im VERY mechanically inclined. VERY.
So im not afraid of a large, and hard project. thats what i live for.

and ive owned pretty much every playtoy on the market. quads, street bikes, boats, cars, trucks, go karts, waverunners, jet ski's. whatever, etc. You name it. I've had it.

But its time for me to expand to the only toy i havnt got to touch yet. A snowmobile :) and with the extremely early winter were getting already. Its got me jumpin to try something new.

and ill be up front, i know jack squat about sleds. So im sorry for any noobness in advance!!

2nd, please dont suggest i go find a good used running one or something like that. If i have the 1-3 grand in cash spare right now, i wouldnt be posting this thead, id be out riding a nice sled. But im in the process of buying a house. im FLAT ass broke.

But I just found a 97 arctic cat Jag DLX on my local craigslist for sale for $200 bucks. Which is a price i can live with and afford at this time. Machine looks gorgeous, been well cared for, but the motor went tits up. its a 440cc air cooled.

I called the guy to see what he had to say about it.

First thing he told me was he stole the chain case off it when it died and used it on another sled.
5 minutes on google for me, and it doesnt look like to big of a deal. Im asumming its really not? how expensive are these on average? i havnt taken the time to price check it yet.

Next he told me the piston totally blew apart, so thats the main issue with the motor and what put it out of commission. He said he wouldnt suggest rebuilding it. But I always like to get my own opinion on that. If its not to bad, and the sleeves are in okay shape. im just going to hone it out, drop in a weisco piston kit, and GO!

BUT, if it really is a toast motor and has no hope. I have a few questions.
Next i appologise, im sure there are lots of threads like this with the same questions. But i just dont have the time to browse right now. So a nice helpfull answer would be much appreciated :)

How difficult are Bigger motor swaps in these?
what abou swapping to a Liquid cooled motor?
And how hard/cheap is it to just find another running 440 motor?

i have no idea how these things operate under the hood, but once i finally get my head underone im sure ill figure it out. So im curious how easy it is to get maybe a different brand of motor in there.

And finally...

And thing special i should look for when i go to check this sled out here tomorow or the next day? Specifially anything in the drivetrain, or whatnot? Give me the noob advice i need it! lol Thanks a lot guys. ]]> Engine / Drivetrain SubarusRmyThing http://www.snowmobileforum.com/engine-drivetrain/40496-suggestions-please.html Doo 583 in Polaris Indy? http://www.snowmobileforum.com/engine-drivetrain/40501-doo-583-polaris-indy.html Tue, 17 Nov 2009 04:46:48 GMT Hey everyone I just put a Bombardier-rotax gmbh gunskirchen type 583 in my Indy. I need a wiring diagram to show me what the wires coming out of the... Hey everyone I just put a Bombardier-rotax gmbh gunskirchen type 583 in my Indy. I need a wiring diagram to show me what the wires coming out of the mottor are for. Trying to hook up my tach and tail/break/head lights and heated hand grips but do not know what wires to use. ]]> Engine / Drivetrain Leewebster23 http://www.snowmobileforum.com/engine-drivetrain/40501-doo-583-polaris-indy.html Polaris Edge instantly floods out http://www.snowmobileforum.com/engine-drivetrain/40467-polaris-edge-instantly-floods-out.html Mon, 16 Nov 2009 20:56:31 GMT I have an '02 polaris edge 600, never had a single problem with it. I went to start it to make sure it would be ready to go when the white stuff came and was pretty disappointed. It will fire if I clean the plugs and run for just a few seconds until it floods out. When I pull the plugs out, they're completely drenched. I thought my floats were stuck open so I pulled the carbs and cleaned everything out which was all in great condition. Does anybody know what would cause it to completely flood out like this? Thanks!! ]]> Engine / Drivetrain thenamesgray http://www.snowmobileforum.com/engine-drivetrain/40467-polaris-edge-instantly-floods-out.html Performance Bogies http://www.snowmobileforum.com/engine-drivetrain/40442-performance-bogies.html Mon, 16 Nov 2009 04:41:29 GMT Hi. I am part of a snowmobile group that trys to make a snowmobile very effiecent and quite. One thing we are looking at is changing the bogie wheels... Hi. I am part of a snowmobile group that trys to make a snowmobile very effiecent and quite. One thing we are looking at is changing the bogie wheels to larger/lighter ones and I was wondering if anybody has any knowledge they could share about this. We are specifically wondering about carbon fiber wheels and what the inherent pros and cons of them would be. I would very much aprreciate any knowledge you could give me.... Thanks ]]> Engine / Drivetrain jamesu9165 http://www.snowmobileforum.com/engine-drivetrain/40442-performance-bogies.html engine prob,kawasaki drifter 340 http://www.snowmobileforum.com/engine-drivetrain/40426-engine-prob-kawasaki-drifter-340-a.html Sun, 15 Nov 2009 22:39:13 GMT Hi, I have a 79 kaw drifter 340 that we are fixing for home use, and last year we had trouble with it running in warm weather, it just gets sluggish... Hi, I have a 79 kaw drifter 340 that we are fixing for home use, and last year we had trouble with it running in warm weather, it just gets sluggish and dies, sometimes it willl restart with new plugs and or just leaving it to cooldown works, someone told me these machines had an issue with that, anyone have an idea??thanks Bill (wrbs) ]]> Engine / Drivetrain wrbs http://www.snowmobileforum.com/engine-drivetrain/40426-engine-prob-kawasaki-drifter-340-a.html A real Firecat http://www.snowmobileforum.com/engine-drivetrain/40410-real-firecat.html Sun, 15 Nov 2009 15:14:25 GMT I have a 2000 arctic cat 600 carburated. I'm having problems with the fuel not combusting completely in the cylinder and is causing backfire in my exaust. Due to the backfire, my exaust split apart and caught my sled on fire under the hood. I've taken the carbs apart and the needle and floats look good. Jets are not plugged. I put new pluggs in and that did nothing. I have good compressionand spark. Any ideas? I'm running out of things to check. ]]> Engine / Drivetrain brad6162 http://www.snowmobileforum.com/engine-drivetrain/40410-real-firecat.html artic cat ecu reset http://www.snowmobileforum.com/engine-drivetrain/40388-artic-cat-ecu-reset.html Sun, 15 Nov 2009 01:13:38 GMT im working on a ac 95 wildcat and am trying to reset the ecu. the manual says to ground pin 14 on the jumper harness. any one no which pin to ground... im working on a ac 95 wildcat and am trying to reset the ecu. the manual says to ground pin 14 on the jumper harness. any one no which pin to ground without using the diagnosis jumper. ]]> Engine / Drivetrain blake 907 http://www.snowmobileforum.com/engine-drivetrain/40388-artic-cat-ecu-reset.html