bluemonster1
LIFE MEMBER ONLY ONCE!!!
bluemonster1
LIFE MEMBER ONLY ONCE!!!
bluemonster1
LIFE MEMBER ONLY ONCE!!!
was running in temps around -7 to -11 C.This weekend temps will be around -16 to -19 C,will see how the sleds perform and monitor the readings.
bluemonster1
LIFE MEMBER ONLY ONCE!!!
How do my plugs look,would like an opinion on them..anybody.......
Looks A Litttle Hot On The Srx.....
Electrode looks eaten away on the 600,,,, (thinning out) also hot ......
What plugs are you running? On both sleds.........
bluemonster1
LIFE MEMBER ONLY ONCE!!!
stock SRX plugs and stock jetting.
Runing iridium plugs on the 600..thinner electrodes,stock jetting again.
Runing iridium plugs on the 600..thinner electrodes,stock jetting again.
bluemonster1
LIFE MEMBER ONLY ONCE!!!
Running Premium fuel in both sleds also.There is no DCS issues at all on SRX,even on hard bursts.
Spinner18
New member
if the DCS doesn't come on the srx, don't worry then. if she run's lean, it will flash and tell you.
flatblack97
Member
The electrode on those iradium plugs tend to look that way after good use. I don't know what it is about them but i've run them in my car since day one and they always end up looking like that after about 50,000 miles. I'd say all of them look good, the SRX does look a little lean but not too far off at all, I'd leave them both and call it good!
Bluemonster2
New member
Id say the 600 looks a little rich and the srx looks dead on. Compare the srx to that plug chart and its the same as #14, says "the best". If those are lean than my XTC woulda melted down by now lol
bluemonster1
LIFE MEMBER ONLY ONCE!!!
it melted down and still ticking..wow that is Yamaha for ya...lol
bluemonster1
LIFE MEMBER ONLY ONCE!!!
I agree,#14 in the chart looks close...the best!!!
Spinner18 said:
dont wanna jack the thread but just wondering, does the DCS indicate detonation and a lean condition? I have a 03 viper that has had a lean out on one cyl and the light never showed....just lookin for info on what triggers that light
Spinner18
New member
when it's running lean, sleds usually detonate.... might want to make sure the light works somehow
Sameyeam said:
If it's anything like an automotive knock sensor, I'd say no, it won't detect a lean condition. It's my understanding that the sensor is a peizo-electric devise that generates a small voltage when excited by a particular frequency. When you have detonation the colliding of two flame fronts produce a knock which the sensor picks up and converts to an output to the CDI which pulls timing and flashes the light.
Anyhow, that's my limited understanding of DCS.
bluemonster1
LIFE MEMBER ONLY ONCE!!!
2002 SRX Good Read
I'll post this up again.It explains the DCS and testing done on it.interesting for sure.
2002 Yamaha's
Aside from the new SXViper, evolution is the key in Yamaha model line for 2002
By AmSnow staff
Published: January 24, 2001
If you're looking for 2002 Phazers and 500s, don't bother. Dealers already have enough of those to get through next season, so you can get a deal on them. But, don't look for deals on the hot sellers like the new Viper (see Viper story elsewhere on AmSnow.com by searching the story archives), top line SRX and Mountain Max 700s.
What's new at Yamaha for the upcoming season? Here's your first impression of Yamaha 2002:
Top Performance: SRX
Yamaha states that the SRX is based on industry-leading engine technology like self-cleaning power valves, 3D ignition system, liquid-heated flatslide carbs and new for this year is an automatic detonation control system.
The SRX is for the go-quick guy. Based on our 11th annual Shoot-Out results the SRX can zip through a quarter mile in nearly 12 seconds flat. That was the best out-of-box experience we've seen at any Shoot-Out. So the performance is real.
Yamaha's Detonation Control System allows leaner production carb settings to reliably produce increased power. Since the mix is leaner, the sled gets improved fuel efficiency.
The DCS monitors combustion vibration for signs of possible detonation, which may come from poor fuel, water or contaminants in the fuel. When detonation problems are detected, the ignition timing adjusts until detonation ceases.
When the DCS reacts, you get up to three stages of action:
1. Upon initial detection, the ignition timing retards 3 degrees;
2. If detonation continues, the timing sets back 6 degrees and you see a quick flash from the console mounted warning light;
3. If engine-damaging levels prevail, the ignition reduces top revs to a "limp home" mode of 6400 revs and the indicator lamp continues to flash. When the detonation stops, the system automatically resets itself.
We found when test riding an SRX with regular grade fuel and jetting set 10 jets too lean for Midwestern riding conditions that the sled automatically retarded itself. When we held the throttle wide open in spite of the monitored warning, the sled backed down to 6400 revs, reset the ignition and then climbed back out until the jetting and low grade gas once again required a sensor reaction. We couldn't burn the engine down. And we were trying. This will most likely be a coming feature for all future sleds as it beats the Polaris dual mode switch in peace of mind for owners.
Key 2002 SRX features:
• Dual bulb halogen headlamps;
• 145 horsepower, 700cc Power Valve-equipped three-into-three triple;
• Dual-piston hydraulic brake with inner ventilated rotor for improved cooling and stopping power;
• ProAction chassis and suspension systems for flat cornering and high speed performance;
• CNC machined exhaust ports;
• Powder metal forged pistons;
• 300 watt ignition with 3-D timing;
• Plastic skis;
• End Goal: Maximum horsepower and quick accelerating machine for very competitive riders.
I'll post this up again.It explains the DCS and testing done on it.interesting for sure.
2002 Yamaha's
Aside from the new SXViper, evolution is the key in Yamaha model line for 2002
By AmSnow staff
Published: January 24, 2001
If you're looking for 2002 Phazers and 500s, don't bother. Dealers already have enough of those to get through next season, so you can get a deal on them. But, don't look for deals on the hot sellers like the new Viper (see Viper story elsewhere on AmSnow.com by searching the story archives), top line SRX and Mountain Max 700s.
What's new at Yamaha for the upcoming season? Here's your first impression of Yamaha 2002:
Top Performance: SRX
Yamaha states that the SRX is based on industry-leading engine technology like self-cleaning power valves, 3D ignition system, liquid-heated flatslide carbs and new for this year is an automatic detonation control system.
The SRX is for the go-quick guy. Based on our 11th annual Shoot-Out results the SRX can zip through a quarter mile in nearly 12 seconds flat. That was the best out-of-box experience we've seen at any Shoot-Out. So the performance is real.
Yamaha's Detonation Control System allows leaner production carb settings to reliably produce increased power. Since the mix is leaner, the sled gets improved fuel efficiency.
The DCS monitors combustion vibration for signs of possible detonation, which may come from poor fuel, water or contaminants in the fuel. When detonation problems are detected, the ignition timing adjusts until detonation ceases.
When the DCS reacts, you get up to three stages of action:
1. Upon initial detection, the ignition timing retards 3 degrees;
2. If detonation continues, the timing sets back 6 degrees and you see a quick flash from the console mounted warning light;
3. If engine-damaging levels prevail, the ignition reduces top revs to a "limp home" mode of 6400 revs and the indicator lamp continues to flash. When the detonation stops, the system automatically resets itself.
We found when test riding an SRX with regular grade fuel and jetting set 10 jets too lean for Midwestern riding conditions that the sled automatically retarded itself. When we held the throttle wide open in spite of the monitored warning, the sled backed down to 6400 revs, reset the ignition and then climbed back out until the jetting and low grade gas once again required a sensor reaction. We couldn't burn the engine down. And we were trying. This will most likely be a coming feature for all future sleds as it beats the Polaris dual mode switch in peace of mind for owners.
Key 2002 SRX features:
• Dual bulb halogen headlamps;
• 145 horsepower, 700cc Power Valve-equipped three-into-three triple;
• Dual-piston hydraulic brake with inner ventilated rotor for improved cooling and stopping power;
• ProAction chassis and suspension systems for flat cornering and high speed performance;
• CNC machined exhaust ports;
• Powder metal forged pistons;
• 300 watt ignition with 3-D timing;
• Plastic skis;
• End Goal: Maximum horsepower and quick accelerating machine for very competitive riders.
bluemonster1
LIFE MEMBER ONLY ONCE!!!
more reading..
2002 Yamaha Snowmobile Index
SRX | Viper | Viper ER | V-Max | SX
2002 Snowmobile Prices
YAMAHA SRX
Is This The Best Performing Out-of-the-Box Snowmobile Ever?
Claimed to be the most advanced and quickest top performance sled on the snow, the SRX continues to lead the way both in acceleration and in customer satisfaction.
What else would you expect from a motor company which has changed the rules and turned heads in every other motorsports segment they're involved in? Yamaha Motor Corporation has lead the charge in off-road motorcycle technology with their new breed of four-stroke dirt bikes. Yamaha is laying down more ponies to the pavement than ever with their R1 and R6 race bred sportbikes and Yamaha has one of the most diverse and exciting ATV model lineups in the industry, including the high performance 660 Raptor sport ATV.
Injecting this forward thinking and industry leading technology into their snowmobile division, Yamaha has developed a leading top performance sled with the SRX 700 and for 2002, the technology continues to push the envelope. This is a dedicated full-on performance snowmobile that blends top performance, trail manners and sharp handling into a tight package.
Potent Engine
It all starts with a compact and formidable triple cylinder powerplant, which features electronic controlled exhaust valves, 3-dimensional ignition, rare earth magneto, liquid heated flatslide carbs, and new for 2002, an automatic Detonation Control System (DCS).
From first squeeze through wide-open throttle, the SRX delivers a power hit with seamless pull. In fact, the SRX slammed out of the gates at the American Snowmobiler Old Forge Shootout last winter, and was proudly proclaimed the quickest box-stock snowmobile ever in the history of the competition, regardless of displacement.
Industry First: The new DCS keeps this unrelenting performance in check by monitoring the combustion process and moving into a fail-safe ignition retard zone when the potential for power robbing engine detonation is present. Go ahead, let the SRX engine scream the performance note it was intended and leave the worries of bad fuel and irregular jetting to advanced Yamaha technology.
Pro-Action Suspension
But all that power doesn't mean anything if you're merely hanging on for holy Hannah. Here's where the backbone of the SRX breed comes to the party. Based on the ProAction system chassis and suspension, the rigid and corner carving traits are tailored to the SRX power surge to deliver razor sharp handling, aggressive yet controllable weight transfer and an excellent ride quality.
Extras include a 300 watt magneto to power the projector style headlamps and infinitely adjustable hand and thumb warmer controls. At the other side of the bar is a hydraulic brake system delivering one finger pull stops with a progressive feel.
New Features
Industry Exclusive Detonation Control System (DCS) self-adjusts ignition timing for optimal performance, providing greater power and higher reliability.
Performance
The American Snowmobiler 2001 Shoot-Out results and numerous grass drag victories prove that the SRX can beat the competition's 800cc sleds. Triple-cylinder engine with industry-leading self-cleaning electronic power valves maintains strong engine performance. Exclusive CNC-machined exhaust ports deliver consistently high performance. Exclusive liquid-heated carburetors maintain excellent throttle response and fuel economy. Exclusive 360-degree indexed spark timing provides stronger spark and more consistent performance. Exclusive 300W D.C. CDI with throttle position sensor and 3D-ignition system provides strong low-end power and excellent throttle response.
Handling
Lightweight, rigid ProAction System Chassis has up to twice the torsional rigidity of competitive designs to provide razor-sharp handling. ProAction SRX rear suspension with aggressive control rod location and calibration provides excellent weight transfer and acceleration. The hydraulic brake system requires just one-finger effort and provides a progressive feel. Exclusive inner-ventilated brake rotor provides superior cooling.
Comfort/Convenience
Exclusive single-point, Quick-Adjust rear suspension allows the rider to quickly adjust both effective shock damping and spring rates to suit their riding style. Premium, rebuildable, aluminum-body KYB gas shocks provide class-leading ride quality. Standard tunnel protectors and front heat exchanger guard allows for easier after-market track studding. Separate temperature controls for handgrip and thumb warmers offer 10 settings each for greater comfort. Dual headlight design and high output 300W magneto system provides excellent nighttime visibility. Exclusive mechanical parking brake for peace of mind when trailering. Exclusive adjustable brake lever for a custom fit.
2002 Yamaha Snowmobile Index
SRX | Viper | Viper ER | V-Max | SX
2002 Snowmobile Prices
YAMAHA SRX
Is This The Best Performing Out-of-the-Box Snowmobile Ever?
Claimed to be the most advanced and quickest top performance sled on the snow, the SRX continues to lead the way both in acceleration and in customer satisfaction.
What else would you expect from a motor company which has changed the rules and turned heads in every other motorsports segment they're involved in? Yamaha Motor Corporation has lead the charge in off-road motorcycle technology with their new breed of four-stroke dirt bikes. Yamaha is laying down more ponies to the pavement than ever with their R1 and R6 race bred sportbikes and Yamaha has one of the most diverse and exciting ATV model lineups in the industry, including the high performance 660 Raptor sport ATV.
Injecting this forward thinking and industry leading technology into their snowmobile division, Yamaha has developed a leading top performance sled with the SRX 700 and for 2002, the technology continues to push the envelope. This is a dedicated full-on performance snowmobile that blends top performance, trail manners and sharp handling into a tight package.
Potent Engine
It all starts with a compact and formidable triple cylinder powerplant, which features electronic controlled exhaust valves, 3-dimensional ignition, rare earth magneto, liquid heated flatslide carbs, and new for 2002, an automatic Detonation Control System (DCS).
From first squeeze through wide-open throttle, the SRX delivers a power hit with seamless pull. In fact, the SRX slammed out of the gates at the American Snowmobiler Old Forge Shootout last winter, and was proudly proclaimed the quickest box-stock snowmobile ever in the history of the competition, regardless of displacement.
Industry First: The new DCS keeps this unrelenting performance in check by monitoring the combustion process and moving into a fail-safe ignition retard zone when the potential for power robbing engine detonation is present. Go ahead, let the SRX engine scream the performance note it was intended and leave the worries of bad fuel and irregular jetting to advanced Yamaha technology.
Pro-Action Suspension
But all that power doesn't mean anything if you're merely hanging on for holy Hannah. Here's where the backbone of the SRX breed comes to the party. Based on the ProAction system chassis and suspension, the rigid and corner carving traits are tailored to the SRX power surge to deliver razor sharp handling, aggressive yet controllable weight transfer and an excellent ride quality.
Extras include a 300 watt magneto to power the projector style headlamps and infinitely adjustable hand and thumb warmer controls. At the other side of the bar is a hydraulic brake system delivering one finger pull stops with a progressive feel.
New Features
Industry Exclusive Detonation Control System (DCS) self-adjusts ignition timing for optimal performance, providing greater power and higher reliability.
Performance
The American Snowmobiler 2001 Shoot-Out results and numerous grass drag victories prove that the SRX can beat the competition's 800cc sleds. Triple-cylinder engine with industry-leading self-cleaning electronic power valves maintains strong engine performance. Exclusive CNC-machined exhaust ports deliver consistently high performance. Exclusive liquid-heated carburetors maintain excellent throttle response and fuel economy. Exclusive 360-degree indexed spark timing provides stronger spark and more consistent performance. Exclusive 300W D.C. CDI with throttle position sensor and 3D-ignition system provides strong low-end power and excellent throttle response.
Handling
Lightweight, rigid ProAction System Chassis has up to twice the torsional rigidity of competitive designs to provide razor-sharp handling. ProAction SRX rear suspension with aggressive control rod location and calibration provides excellent weight transfer and acceleration. The hydraulic brake system requires just one-finger effort and provides a progressive feel. Exclusive inner-ventilated brake rotor provides superior cooling.
Comfort/Convenience
Exclusive single-point, Quick-Adjust rear suspension allows the rider to quickly adjust both effective shock damping and spring rates to suit their riding style. Premium, rebuildable, aluminum-body KYB gas shocks provide class-leading ride quality. Standard tunnel protectors and front heat exchanger guard allows for easier after-market track studding. Separate temperature controls for handgrip and thumb warmers offer 10 settings each for greater comfort. Dual headlight design and high output 300W magneto system provides excellent nighttime visibility. Exclusive mechanical parking brake for peace of mind when trailering. Exclusive adjustable brake lever for a custom fit.
good info Blue thanks, so my understanding is that the dcs detects knock aka preignition???? and just retards timing to fix such, i think the light flashes once when i start the sled and the tach cycles....all that talk on the SRX makes me want one....145 hp stock..ooooo 
...makes my 115hp viper sound like a novice sled
...makes my 115hp viper sound like a novice sled