Want HOT hands?..It can be done!!! EDITED FIRST POST

[RTX DUDE]

I want to see a copy of the service bulletin. Were left to freeze? I smell a skunk somewhere!!!!!!!!!!!

 

[ROCKERDAN]

this makes me think yammies for 08 will be just as cold....not a good sign.

its funny how something so simple could make or break a new sled model....anytime I meet someone who is thinking about going 4 stroke and going apex,they all say same thing...

"I hear the handwarmers are terrible"


Yamaha,since you must obviously read these threads...you Must know that if you truly AIM to grab the #1 sled manufacturer marketshare,then you MUST resolve this issue....Leave us 06 AND 07 guys literally "out in the cold" is going to leave a sour taste in MANY peoples mouths.

how about a fix like My 06 bar fix but give us a resistor wiring harness which we can buy cheap?...that would make us ALL happy...and then no worries of CPUs.

the biggest thing that is Disturbing to me is the fact you start the Bulletin calling us all Internet Genuises(condescending,to all of us who have to make up ways to fix poor engineering)then you seem to end the bulletin with the same answer to alot of the problems,which is.."there is no problem".....you seem to think you corrected the issue and wont revisit the issue.

Only one thing to respond with...If the heaters worked well,then none of us genuises would be trying to change things.

Hope this doesnt offend anyone on this site..I just want to clearly state that the yammy 07 upgrade does not work...and we all are gonna do what we do,till they help out with something...

at least my hands have been warm now for near 3 weeks..and I hope I dont melt my CPU...but honestly Id rather have comfortable riding at this point and take chance on CPU.

Dan

 

[06nytrorider]

I have an 06 nytro and the new bars on order now i should cancel that order and order the new 07 wiring and just install that on my nytro or dose the wire just come with the 07 bars so i have the dealer install new wires and my old 06 bars.

 

[Tork]

Interesting reading in the meantime that sledderSteve located and was going to post.

This is from November 2005

CookeCityRider wrote:
I have ridden my new Apex Mt for about 100 miles. I noticed right away that the grip heaters didn't seem to get near as warm as the ones on the MM700. The thumb heater wasn't extremely hot but it works better than the grip heaters.
From the information I have read, each grip heater measures about 2.5 ohms. The two heaters are wired in series for a total of 5 ohms. From what I have read the output voltage at normal riding RPM's and the 'high setting' is around 13 volts.
According to Ohms Law: E=IR where E is the voltage, I is the current and R is the resistance. Also, P=EI where is P is power(watts in DC). Doing the math, we find the current, I, to be 2.6 amps and the total power to be 33.8 watts with half (16.9 watts at each grip heater).
The obvious quick and easy solution would be to reconnect the grip heaters in parallel. Two identical resistors of 2.5 ohms in parallel would equate to only 1.25 ohms. The current, I, now would be 10.4 amps. The total power would be 135.2 watts or 67.6 watts for each grip heater.
CAUTION The are several concerns that come to mind right away, not the least of which is whether the magneto can produce that much power. Also, the wire size has to be large enough and the variable voltage regulator(which I assume is built into the ECU) has to be able to 'switch' or control 4 times the amount of current.
The other possible solution would be to find grips that have less resistance ( like 1.5 to 2.0 ohms). The only other variable in the equations is the voltage. Since I'm fairly sure the regulator is build into the ECU, there isn't much that can be done easily there.
For those few people that haven't fallen asleep and are still reading this, I'm NOT suggesting you change anything until Yamaha has a chance to figure this out which I'm sure they will do soon. I just thought it might help everyone to understand the different factors and issues involved in this issue.
Now I'm off to find my extra gloves and liners.....Zane

 

[Convert]

Unlocked! Please do not post anything related to law suits TY does not need the hassle. Posts of this nature WILL be deleted.

Thankyou

 

[**sj**]

sorry..did'nt mean to post anything that could negatively affect the site..

 

[SERPAGS]

I am leaving on Friday for a 1 week trip, hopefully rack up 3000 kms. I recently flipped my sled and damaged my bars (07 GT ), after seeing this post, I decided to simply replace my bars with 06 bars which I did. I picked up a set from my dealer and I told him that I was going to simply plug them into the existing harness on my 07 sled and that I read that it would be HOT. His response was, " oh yeah, you can do that. The 06 UPDATE is basically the 07 harness", having said that, you can bet your #*$&@ that if my CPU fries, he will pay for a new one. I got a little nervous when I later read teh post about the "bulletin" if it even exists ( I have not seen it ) but then got a little smarted and told myself that after riding 400 kms in -15 degrees celcius, my hand were warm with only 2 bars. I never had to even close to high power, not even for curiosity. Half is now my mental MAX. With that in mind, I think I will be ok. And, Dan, I agree with you, I would rather pass on frostbite !!! I beleive that if we keep it low, we will be ok ! When all else fails...Logic prevails !

Dan, keep up the good work !!!

Peace and ride safe guys, we lost a rider last week up here....... be alert !


Sergio

 

[Tork]

I work a lot with industrial controls and do electrical trouble shooting, I do not have a degree in electrical engineering.
With a small load device, doesnt matter what it is motor, heater etc. Variable voltage resisting down circuits are small. Potentiometer very small resistors.

Get up around 10 amps that is where you start seeing big ceramic resistors. You start seeing heat sinks on the transformers. I am thinking that running 1-4 bars is harder on the cpu. You are asking it to hold back the bigger watts that the bigger device wants to draw.

One more tie in.

Ever look at an add on grip kit. They have been in the aftermarket catalogs for 20 years. So simple, on high it is just the grips switch and wires. On the low setting side of the switch, oh man now you got in the circuit a big ceramic resistor trying to reign in the power that the grips want to draw.

Anyway that is my humble opinion based on years of observation

 

[RTX DUDE]

Good post Tork!!! I get it, with the heat sink. cool. No pun intended. LOL


but I'm doing what I discussed with my dealer. He stated to keep on low settings and should be ok. Should is the key. He explained ecu and the variable ground. he sounded like he knew what he was talking about. I will risk it for warm pinkys

 

[SnowBandit]

My bars warm up after riding for about 10-15 mins at constant speed... Has to be around 25mph+ This is set to max thou.. Thumb warmer takes around the same time but then needs to back down to half... I am not happy at all and will be talking to Yamaha about it. They were not happy with me when I brought it up at the sno-deo last year... Down played it till I said you want to go for a ride and test the bars with me.. I bet your don't get warm hands.. The then acknowledge that there was a problem and they were working on it. I hope yamaha comes up with a fix... Sucks to dump this kinda of money on something that does not work..

 

[87gtNOS]

Ever look at an add on grip kit. They have been in the aftermarket catalogs for 20 years. So simple, on high it is just the grips switch and wires. On the low setting side of the switch, oh man now you got in the circuit a big ceramic resistor trying to reign in the power that the grips want to draw.

OK, so this was a thought I had a day or two ago, why not run the 06 grips off the battery and hook it up with a toggle (ON-OFF-ON) switch and the ceramic resistor? So you only have low and high settings! High should get real hot because the grips will see a full 12v.

Well, will this work?

 

[Tork]

I believe it would work Jon, lets see what Hammer has to say. The theory is right but the 06 grips could draw too much eliminating the CPU or not.

Answer there is a resistor for high and an even bigger resister for low.

 

[SledderSteve]

[
OK, so this was a thought I had a day or two ago, why not run the 06 grips off the battery and hook it up with a toggle (ON-OFF-ON) switch and the ceramic resistor? So you only have low and high settings! High should get real hot because the grips will see a full 12v.

Well, will this work?

One of the more effective mods some were doing last season was to install cartridge type heaters inside the bar tube, wired as you describe. The cartridges heated the bars from inside out and could be turned off when the temps were warm and the stock heaters could keep up.

The sled has plenty enough power to drive the heaters, the issue is with the power going through the ECU. Like Tork, I also work with industrial controls and I'm not an engineer but I do know that once you let the smoke out of those things it's difficult if not impossible to put it back in...

 

[Taz107]

One of the more effective mods some were doing last season was to install cartridge type heaters inside the bar tube, wired as you describe. The cartridges heated the bars from inside out and could be turned off when the temps were warm and the stock heaters could keep up.
.

http://www.ty4stroke.com/viewtopic.php?t=36367&postdays=0&postorder=asc&start=42

My cartridge type heaters just came in, now if I can just find the time to install them...

 

[Tork]

sledderSteve again with great input.

The guys who did the cartridge supplemental heaters flat out loved them.

Port Yamaha as I remember put together the kits, not very spendy either.

Like 1/15th the cost of a CPU LOL