Engine size

[momoney2123]

having a hard time believing that riders wouldn't know there sled is in limp mode. OMDave has a 600 etec and I've seen that machine in limp mode and you know it has a problem. I believe all machines with FI control mapping and knock, it's not exclusive to doo. Maybe the egt's sensor is doo only but not sure about that

haha well believe it. There are various inputs that the etec has and various fueling maps and timing changes and multiple sensors that monitor inputs and outputs on the etec. MUCH More advanced than other 800s. And why it took builders awhile to figure out how to mod a etec successfully. Some of the limp modes you CAN NOT feel by the seat of your pants. Some limp modes will shut the engine off completely. I forget the exact numbers and before I get my digital water temp gauge programmed into my etec I will varify these numbers. But if I remember from conversation with someone who knows etecs as well as anyone at 120 degrees water temp there is a timing retardation. At 140 a more advanced timing retard and at 160 the engine will shutoff completely. We have seen this multiple times drag racing before we knew the actual numbers. Make a pass on my 800etec vs 2 800 power teks. First run it would walk them by a significant amount. 2nd pass when sled is hot, we would be even. 3rd pass even slower. Shutoff and cool down, back to walking away. Also talking with engine builders about this exact topic told me never to race anyone without shutting the sled off. If at anytime a sensor senses something like on a long trail to enduce a limp, it WILL not reset until engine has been shutoff.

 

[lenny]

haha well believe it. There are various inputs that the etec has and various fueling maps and timing changes and multiple sensors that monitor inputs and outputs on the etec. MUCH More advanced than other 800s. And why it took builders awhile to figure out how to mod a etec successfully. Some of the limp modes you CAN NOT feel by the seat of your pants. Some limp modes will shut the engine off completely. I forget the exact numbers and before I get my digital water temp gauge programmed into my etec I will varify these numbers. But if I remember from conversation with someone who knows etecs as well as anyone at 120 degrees water temp there is a timing retardation. At 140 a more advanced timing retard and at 160 the engine will shutoff completely. We have seen this multiple times drag racing before we knew the actual numbers. Make a pass on my 800etec vs 2 800 power teks. First run it would walk them by a significant amount. 2nd pass when sled is hot, we would be even. 3rd pass even slower. Shutoff and cool down, back to walking away. Also talking with engine builders about this exact topic told me never to race anyone without shutting the sled off. If at anytime a sensor senses something like on a long trail to enduce a limp, it WILL not reset until engine has been shutoff.

interesting, thanks for the info

 

[whitedust]

haha well believe it. There are various inputs that the etec has and various fueling maps and timing changes and multiple sensors that monitor inputs and outputs on the etec. MUCH More advanced than other 800s. And why it took builders awhile to figure out how to mod a etec successfully. Some of the limp modes you CAN NOT feel by the seat of your pants. Some limp modes will shut the engine off completely. I forget the exact numbers and before I get my digital water temp gauge programmed into my etec I will varify these numbers. But if I remember from conversation with someone who knows etecs as well as anyone at 120 degrees water temp there is a timing retardation. At 140 a more advanced timing retard and at 160 the engine will shutoff completely. We have seen this multiple times drag racing before we knew the actual numbers. Make a pass on my 800etec vs 2 800 power teks. First run it would walk them by a significant amount. 2nd pass when sled is hot, we would be even. 3rd pass even slower. Shutoff and cool down, back to walking away. Also talking with engine builders about this exact topic told me never to race anyone without shutting the sled off. If at anytime a sensor senses something like on a long trail to enduce a limp, it WILL not reset until engine has been shutoff.

I think most call limp mode a slow rpm mode home for a given engine fault mode. This sounds more like a standard engine mapping that protects the etec enegine in certain conditions a good thing but not sure it should be called a limp mode. As far as advising people to shut down reset then race might unscramble the fault but should not take long for the etec to go right back into protection mode or it is a useless feature & rider is overiding protection & can cause engine damage. To me never ever ride balls out on a cold 2s engine ....engine go boom not worth the risk.

 

[momoney2123]

I think most call limp mode a slow rpm mode home for a given engine fault mode. This sounds more like a standard engine mapping that protects the etec enegine in certain conditions a good thing but not sure it should be called a limp mode. As far as advising people to shut down reset then race might unscramble the fault but should not take long for the etec to go right back into protection mode or it is a useless feature & rider is overiding protection & can cause engine damage. To me never ever ride balls out on a cold 2s engine ....engine go boom not worth the risk.

Ya u can call it a limp or whatever. Thats the terminology that was used to me.

As far as resetting the fault. It depends on what caused the limp in the first place. Some just need resetting, others like water temp need time or good snow conditions. No one is saying to hammer wide open and cold seize the engine. Altho the etec tries to prevent that as well. It won't give full power until a certain temperature is met. According to this builder who builds all 2strokes, this is the hardest 2 stroke to burn down he has ever been involved with. Which is good for average guy. But sux at times when racing.

 

[whitedust]

Ya u can call it a limp or whatever. Thats the terminology that was used to me.

As far as resetting the fault. It depends on what caused the limp in the first place. Some just need resetting, others like water temp need time or good snow conditions. No one is saying to hammer wide open and cold seize the engine. Altho the etec tries to prevent that as well. It won't give full power until a certain temperature is met. According to this builder who builds all 2strokes, this is the hardest 2 stroke to burn down he has ever been involved with. Which is good for average guy. But sux at times when racing.

My 150 etec outboard does go into limp mode in an overheat mode....worn impellar ...alarm goes off engine rpm greatly reduces .....me I go into *** mode? Stuck out in middle of lake slow rpm not good. So shut down engine & restart.. clears but always worried me why it clears? When I did take it in for service a computer print out had every detail one could think about in 3 years of engine service date & time faults appeared. No idea if engine goes into different mappings according to operating temps but probably does but can't be noticed in a water etec application. There is no BSing an etec outboard tech he knows exactly how you run that engine.lol Lucky for me it showed good respect & care for that engine.... I wonder if the etec snomo engines have detail operation & fault reports as well?

 

[momoney2123]

My 150 etec outboard does go into limp mode in an overheat mode....worn impellar ...alarm goes off engine rpm greatly reduces .....me I go into *** mode? Stuck out in middle of lake slow rpm not good. So shut down engine & restart.. clears but always worried me why it clears? When I did take it in for service a computer print out had every detail one could think about in 3 years of engine service date & time faults appeared. No idea if engine goes into different mappings according to operating temps but probably does but can't be noticed in a water etec application. There is no BSing an etec outboard tech he knows exactly how you run that engine.lol Lucky for me it showed good respect & care for that engine.... I wonder if the etec snomo engines have detail operation & fault reports as well?

yes they do. Hook it up to buds system and will tell any errors or faults that were engaged. Should tell percentage of throttle and all kinds of info. Ive never done it, but was told to if I ever had rpm fade to hook it up. For the 12 model etecs that were plagued with rpm fading, this would be your best indicator as to what is causing the fade. Likely a bad sensor pulling timing. The key is to what sensor. And the buds should tell you.

 

[lenny]

well,,,from real world experience, all these doo protection have not earned them ultra reliable. In fact, with all these "built-in" safe guards, I wonder why when OMDave burned down his 600etec last season the dealer was shocked he made it to 7600 miles without failure. I wonder why my doo mechanic buddy said he was tired of rebuilding etecs and they had a long list of 800's to rebuild, he specifically said they had a system where one guy would tear down machine, one guy would disassemble motor,,,etc,,,,that's no BS and right from the mouth of a doo mechanic. I will not list name and dealer but I do not lie. Doo are light fast machines but still need to be reliable and have longevity.

If OMDave wears out his motor in two seasons what's the point of ownin g a 2s any more. This guy loves to ride and rides 200 plus everyday, close to 1000 pr tripand comes up at least 4 times a season. No wonder he just bought the new gade 1200 4s 2015, now he finally has a machine that can do it all and last a good long time.

 

[momoney2123]

well,,,from real world experience, all these doo protection have not earned them ultra reliable. In fact, with all these "built-in" safe guards, I wonder why when OMDave burned down his 600etec last season the dealer was shocked he made it to 7600 miles without failure. I wonder why my doo mechanic buddy said he was tired of rebuilding etecs and they had a long list of 800's to rebuild, he specifically said they had a system where one guy would tear down machine, one guy would disassemble motor,,,etc,,,,that's no BS and right from the mouth of a doo mechanic. I will not list name and dealer but I do not lie. Doo are light fast machines but still need to be reliable and have longevity.

If OMDave wears out his motor in two seasons what's the point of ownin g a 2s any more. This guy loves to ride and rides 200 plus everyday, close to 1000 pr tripand comes up at least 4 times a season. No wonder he just bought the new gade 1200 4s 2015, now he finally has a machine that can do it all and last a good long time.

Difference between factory recall and burning down. Go over to dootalk and see how many etecs fly past 10k miles. . And wait until doo releases the generation 2 etec. It will be a 2s designed around etec technology and direct injection. Not a carbed 800r with injectors on it. Either way the 800etec has been refined and improved since 2010.5. keeps getting better year in and year out. 14s were the best to date and early indicators 15s are better yet.

- - - Updated - - -

Doo sold a TON of 800etecs. Doesnt suprise me they had a LOT of recalls to be done.

 

[vmax1994]

I've ridden an 800 etec for four years. At times it is blazingly fast and other times not so much. Limp mode is a misnomer as it usually just retards the power by 20HP or so...that is my seat of the pants estimate. Bottom line it can get dog slow, by that I mean 600 slow , if it is really hot. Another issue affecting the power of the 800 etec is ignition/spark quality. That's another story and I won't get into that. Its a solid engine still IMO. I have just under 10K miles on it but have had the top end rebuilt under factory warranty. The problem isn't blowing up; rather consistent power. I have a new one on order this fall and I'm hoping some of the gremlins have been resolved.

 

[momoney2123]

I've ridden an 800 etec for four years. At times it is blazingly fast and other times not so much. Limp mode is a misnomer as it usually just retards the power by 20HP or so...that is my seat of the pants estimate. Bottom line it can get dog slow, by that I mean 600 slow , if it is really hot. Another issue affecting the power of the 800 etec is ignition/spark quality. That's another story and I won't get into that. Its a solid engine still IMO. I have just under 10K miles on it but have had the top end rebuilt under factory warranty. The problem isn't blowing up; rather consistent power. I have a new one on order this fall and I'm hoping some of the gremlins have been resolved.

thats makes perfect sense. I agree. Was hard for me to tell when I was in limp unless I had a known sled I was running against. Like clockwork I would walk away when not in limp, and dead lock when in limp or worse. The more we understand about etecs the easier it gets to figure out why its not performing like 5 mins ago. Mountain guys dont notice it as much as the cooling is better on longer tracks and they are usually in very good snow. It could be worse, the engine could give full power and let it burn down. I also have a 15 800etec im still waiting for

 

[EXCESSIVE FORCE]

voted 600(just sold my 800)

 

[ac600sp]

Cat 800cc H.O.!! I've had a few along with the earlier 7's. Very reliable with tons of power

 

[polarisrider1]

Running in limp mode???? Sounds more like a "My winky is bigger, bader, faster" conversation. (as usual).

 

[lenny]

Running in limp mode???? Sounds more like a "My winky is bigger, bader, faster" conversation. (as usual).[/QUOTE ]

yup, and with all the doo protection, maybe they need to wrap it in a garbage bag (giant condom)

 

[groomerdriver]

<135hp 4S has been my main ride since mid 2005. The Vector motor just suits my riding style the best. The M10 rear skid I put in my 05 made it (to me) the ultimate trail machine. Now I have a 2014 Vector LTX and my arthritic shoulders will love every mile of the power steering. I just hope that I end up loving the Mono rear skid. Biggest engine I've ever had was a 700 2S. Never felt the need to go bigger for trail riding.

 

[momoney2123]

Running in limp mode???? Sounds more like a "My winky is bigger, bader, faster" conversation. (as usual).

Couldnt be farther from the truth. it works and really is some very intellegent engineering. The computer trys very hard to not let morons burn the engine down. Better than a certain 800 that instead of limping goes sayanora.

 

[Woodtic]

Great info on the limp mode. I ride with a few Etechs, and thought it was a quality of gas problem. I will tell my buds they need to put a blue pill in the fuel when this happens.

 

[lenny]

Great info on the limp mode. I ride with a few Etechs, and thought it was a quality of gas problem. I will tell my buds they need to put a blue pill in the fuel when this happens.

lol, your buddies doo's a spittin and sitting and your on your old Xfire spankin the famous etec,,unbelievable!
truth is, even with all of doo's state of the art engine monitoring, it still cannot hold a candle to the cat 800 in reliability. I own the least reliable motor and admit it openly. To bad doo cannot set the motor in limp mode when the junk rings fail, or the rin pins fall out. Who knows whats is in store for the next round of failures. Every few years doo drops the hammer on it's customers with preventive simple mistakes like ring quality of ring pin problems. How many years have they been making 2s motors and still failing with basic engine building? No need to answer, I know the answer!

 

[Woodtic]

Denny just brought home his 2015 spring order 800 etec today. 14.500 plus tax. He can swing that money no problem. I hope it's better than his old one. He put 13k on a 500ss Rev. I think he has had three " new and and improved Revs since then" he has had to dump them all at 5k. Yes I know, he should be riding a four stroke. At 67,he won't do it. He is just another sledder,an idiot like me and you.lol

 

[snobuilder]

whoa daddy...takes alot a instruction to be a Doo etec owner.
Good news is you peeps have a bible full a reasons and excuses when you get rolled by the competition.

At one point it was hilarious to read the doo owner pointing out the failures of another brands 8....LOL

seems like some sledders live in the past 2 minutes and thats it.

With alla that technology you'd think DOO would have developed a console icon for non-LIMPDIK and a icon for LIMPDIK mode