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Sled: Polaris
Started by Snowsledder89 at 07-30-2008 5:58 PM. Topic has 24 replies.
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 07-30-2008, 5:58 PM
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Snowsledder89
 
Joined on 06-09-2008
Maine
Posts 59
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How would you guys reccomend breaking in a brand new sled (09 600 H.O. CFI SB)? I have heard not to go over 60 for the first 100 MPH. But I have also heard that if you baby it the first few hundred miles the sled wont be as fast as if you hadn't babied it. This true?
2009 Polaris Switchback
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07-30-2008, 7:17 PM
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RogerBzXCR
Joined on 07-28-2005
Tewksbury Ma..
Posts 753
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Re: Breaking in a new sled?
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This is what typically do for our trail sleds Varied speeds 1st 30 - 50 or so miles "get to know the sled n noises" ride with typical riding style, then run it up after that to 60 70 80 onward kinda progressive it til topend comes in. tune after you get the n ride know the sled, ride like you're gona ride it.. check compression n keep checkin comp keep some notes and see where it goes with increased mileage.
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07-31-2008, 10:58 AM
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jasper
Joined on 07-30-2005
Posts 1,231
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Re: Breaking in a new sled?
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Run them like you stole them. Actually it doesn't hurt to do w.o. short blasts with the sled and letting it cool down for a while then repeating the process longer as the sled accumulates more mileage. I know the manufactures send their sleds out with synthetic oil in them, but if it were my own sled, I'd break it in with a mineral oil. You will get a lot of different views on this subject, its your choice.
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07-31-2008, 11:27 AM
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racingsnowman
Joined on 08-09-2005
Posts 172
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Re: Breaking in a new sled?
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I agree with jasper I belive you will get better ring seal if break in is done that way. Best way is on the dyno but not practical its ethier going to go or blow ![Hmm [^o)]](/SNO/CS/emoticons/emotion-40.gif)
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08-01-2008, 9:44 AM
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MorSno
Joined on 11-20-2006
Posts 101
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Re: Breaking in a new sled?
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I agree with Jasper as well. The main thing is not to ride the sled at a consistent speed (railroad bed) or hold it at WOT for a period of time. You want to heat and cool the cylinder walls to seat the rings properly. By varying the throttle and doing short WOT burst is best. However, I do agree that you should probably take it easy the first 30 miles to ensure everything is working as expected.
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08-01-2008, 9:50 AM
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jasper
Joined on 07-30-2005
Posts 1,231
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Re: Breaking in a new sled?
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Its critical to build good cylinder pressure during the first hrs of break in. All part of acheiving good cylinder pressure has to due with ring seal. A mineral oil will allow rings to seat sooner over synthetics. No doubt a good dyno operator can break in a new engine more consistently than the average guy oiut on the trails. I've broken in my own engines on a dyno always getting the best results when its done right.
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08-01-2008, 10:39 AM
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SLED-WERX Racing
Joined on 09-02-2006
Ontario
Posts 47
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Re: Breaking in a new sled?
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As noted above, break in aggressively , just be inconsistent in your speeds for the first 50-60 miles. Any of the sleds we babied here were pooches, the ones we broke in hard were strong not a believer in extra oil in the first tank you're paying top dollar for sleds today, with full warranty for at least the first year. Life is Short - Ride HARD!
www.sled-werx.com
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08-01-2008, 6:52 PM
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Snowsledder89
Joined on 06-09-2008
Maine
Posts 59
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Re: Breaking in a new sled?
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Nice, thanks for all the good info. So the first 30 miles take it easy and make sure everything is working right, then stay inconsistant for the next 50-100 so miles, right? Hopefully the lakes freeze early in my area this year. Cranking up the RPM then going down to a lower RPM would be the same as going to the top end to low end? Get it up to 7-8 RPM then down to 4-5 RPM? I appreciate the info.
2009 Polaris Switchback
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08-02-2008, 1:26 PM
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jasper
Joined on 07-30-2005
Posts 1,231
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Re: Breaking in a new sled?
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As long as the oil pump is properly bled and adjusted. I'm not a believer of having extra oil in the fuel tank either. Generally if you have the need to add oil to the fuel tank during break in, I wouldn't exceed 1 oz. of mineral type oil per gallon of gas. I never baby any new engine, but its most important to let it FULLY WARM UP before stomping on it, can't stress that enough. Ride it normally for a few miles, crack it open for a couple hundred feet every once in a while...pull the sled over when you get a chance to let it cool down....repeat the process over extending the running time, and distance of w.o.t. pulls using some good common sense not to over do it.. After a tank or two of fuel it should be nicely broken in.
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08-06-2008, 7:53 PM
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Snowsledder89
Joined on 06-09-2008
Maine
Posts 59
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Re: Breaking in a new sled?
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That was perfect answer. Thanks for the info, i'll do just as you said. I talked to my dealer, said it should arrive in 2-3 weeks. Can't wait till it snows. Thanks again
2009 Polaris Switchback
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08-11-2008, 3:47 PM
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Indy650
Joined on 08-11-2008
Tug Hill
Posts 37
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Re: Breaking in a new sled?
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i have rebuilt and broken in tons of engines... ive tried the ride it like you stole it idea and found a long time ago its retarded! when you buy new pistons they have to heat up and cool down quite a bit before they take thier final shape. so go beat the hell out of your new piston(s) get em really hot and guess what? they are going to have different cylinder to piston clearances because you deformed it/them and the piston is going to leak gases around the rings and get scored because a looser a piston fit makes the piston hotter. how does a looser fit make the piston hotter? because almost all the heat comes from the combustion(small amount from friction) and the farther away the piston is from the cylinder the less it can transfer its heat and the hotter it stays. not looking for an argument here but this is the way experts like the author of a two stroke tuners handbook found to be the correct way...also the way i find to be correct.
because one stroke isnt enough and 4 strokes waste 2
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08-12-2008, 9:42 AM
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Snowsledder89
Joined on 06-09-2008
Maine
Posts 59
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Re: Breaking in a new sled?
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Ok, that does make sense, how would you reccomend breaking in a new engine?
2009 Polaris Switchback
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08-12-2008, 11:41 AM
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racingsnowman
Joined on 08-09-2005
Posts 172
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Re: Breaking in a new sled?
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There are many different opinions on this, yes there must be a few cycles of heating and cooling down but after that you need to have a good ring seal and your not going to get it buy babying it! Do you think that all the race engines that are build for max power are babyed on the dyno?
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08-12-2008, 12:43 PM
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jasper
Joined on 07-30-2005
Posts 1,231
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Re: Breaking in a new sled?
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We always seem to get max hp when breaking in a new engine on a dyno. Just a matter of doing it right. You can simulate whats done on a dyno out on the trails or lake as long as some common sense is applied. Obviously your not going to hammer a cold new engine w.o. till it cooks. We dynoed many different engines that were broken it the way of synthetic oils, and granny rider method...all had lower hp figures and plenty of blow-by after 300 miles. Yeah.. the manufactures perfer this...less power will break less parts.
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08-12-2008, 7:27 PM
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Indy650
Joined on 08-11-2008
Tug Hill
Posts 37
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Re: Breaking in a new sled?
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of course you got lower hp numbers thats because you used synthetic oil! its proven engines cant properly break in with synthetic oils. the way i find thats best is to use mineral oil for 150 miles. at first do a few heat cycles just a high idle for a few minutes then shut it off. then ride it not hard but not too easy... vary throttle speed do some very short wide open bursts and after about 100 miles ride it normal then switch to synthetic at 150. it wont be any slower than the other guys sled(probably faster) and it will last a lot longer. the main thing is you cant break it in easy and then decide ok its broke in and ride normal you have to slowly progress to normal riding
because one stroke isnt enough and 4 strokes waste 2
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08-13-2008, 8:50 AM
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jasper
Joined on 07-30-2005
Posts 1,231
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Re: Breaking in a new sled?
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 Indy650 wrote: | of course you got lower hp numbers thats because you used synthetic oil! its proven engines cant properly break in with synthetic oils. the way i find thats best is to use mineral oil for 150 miles. at first do a few heat cycles just a high idle for a few minutes then shut it off. then ride it not hard but not too easy... vary throttle speed do some very short wide open bursts and after about 100 miles ride it normal then switch to synthetic at 150. it wont be any slower than the other guys sled(probably faster) and it will last a lot longer. the main thing is you cant break it in easy and then decide ok its broke in and ride normal you have to slowly progress to normal riding |
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I think whats been already posted everybody is in agreement on. The thing I can't stresss enough though how important it is to properly warm up the engine before putting the coals to it. I think too many guys over look it.
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08-13-2008, 9:00 AM
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Indy650
Joined on 08-11-2008
Tug Hill
Posts 37
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Re: Breaking in a new sled?
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^very true. i make sure my engines are over 100 degrees before i go above an idle. if i dont have a temp gauge i wait till the engine almost burns my hand
because one stroke isnt enough and 4 strokes waste 2
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08-13-2008, 10:31 AM
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Snowsledder89
Joined on 06-09-2008
Maine
Posts 59
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Re: Breaking in a new sled?
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Ok thanks, I always let my sleds warm up for 3-5 minutes before riding, especially when it is below zero (usually 5-7 min.) Thanks again for the info, I will save this blog.
2009 Polaris Switchback
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08-13-2008, 10:18 PM
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1000cc
Joined on 09-04-2005
Posts 701
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Re: Breaking in a new sled?
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Your sled will have a digital temp gauge..my 07 600 will choke and quit if its not up to 90 and I put it in reverse.
Look out for 600's with mirrors!!
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08-14-2008, 9:20 PM
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Snowsledder89
Joined on 06-09-2008
Maine
Posts 59
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Re: Breaking in a new sled?
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Ok that will be nice, this is the first time I have used the new guages, my last sled was an 04 600 SB, mine was the same way, would have to choke it to keep her alive if I put it in reverse before letting it warm up enough, but my new sled wont have a choke anymore, can't wait to get my sled. So wait until the temp is about 90 before running it?
2009 Polaris Switchback
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