Gen3 Grips - Stuck??? - Page 2 - Yamaha FJR Forum : Yamaha FJR Owners Forums
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post #11 of 18 (permalink) Old 05-26-2017, 10:41 PM
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I had the grips on my 2008 FJR factory grips quite a month ago in the early spring. I checked both and continuity was not in rh grip. I called Yamaha dealer and priced out a new one. It was over $400 CND so I inspected wire and found a broken wire up close to the grip. A friend with small soldering equipment repaired it and I now have my fingers crosses it holds. I check it every once in a while and it's still working. Be very careful working on this area. It's expensive stuff. I will follow this thread to see if there might be alternative grips that can be used. Wonderful site for info and information, thanks.

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post #12 of 18 (permalink) Old 05-27-2017, 06:07 AM
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Originally Posted by 14ES View Post

I searched quite a bit but could not find any pics of a Gen3 factory grip removed from the bike. I'm curious about the location of the heating element - if it is completely molded into the grips or only on the back side. I can't imagine they would be completely encapsulated in rubber, but we'll see.

I also am curious to know. Are they (on Gen 3) heated grips (heating element IN the grips) or are they grip heaters (heating element UNDER the grips)?

-- Dave

Current:

2013 FJR1300
2002 CBR1100XX

Past:

2004 ST1300
1997 CBR1100XX
1994 ST1100
1997 Bandit 1200 (GSF1200S)
1983 GS1100E
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post #13 of 18 (permalink) Old 05-27-2017, 07:55 AM
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The heating wires are contained within the grips, not under them.

Ray
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post #14 of 18 (permalink) Old 05-27-2017, 02:06 PM
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Quote:
Originally Posted by RaYzerman View Post
The heating wires are contained within the grips, not under them.

-- Dave

Current:

2013 FJR1300
2002 CBR1100XX

Past:

2004 ST1300
1997 CBR1100XX
1994 ST1100
1997 Bandit 1200 (GSF1200S)
1983 GS1100E
1982 CB750K
1975 GT500
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post #15 of 18 (permalink) Old 05-29-2017, 03:43 PM Thread Starter
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I didn't get any work done on this over the holiday weekend...but I did do some thinking about it (and some riding) - my hands go numb about 20-30 min into a ride...which sucks.

I did a little research on grip warmers and there seem to be two types: 1) PCB based elements and 2) Spiral wrapped Nichrome wire elements.

Nichrome example: (Nichrome is found on all kinds of heaters from toasters to pipes)



PCB example: (PCB type heaters are used extensively on 3D printers and other appliances...and sorta on your rear window defroster)


It would seem to me from a manufacturing standpoint that it is more probable that the original grips are nichrome wire encapsulated in the grips themselves. I'm taking a wild guess here of course, but that would make more sense as it would withstand the heat of vulcanization.

I have to do some armchair engineering/calculations to see if I can calculate the size/length of the nichrome to get within that stock spec of about 1.3 ohms. Just off the cuff the numbers don't seem to be in lockstep with other nichrome diameters and lengths typical of online data I found...but I'll keep cracking at it.

It seems that the left/stationary grip has more resistance than the right (throttle) because it is right up against the metal bar & not insulated by the plastic sleeve the throttle grip rotates on...or at least that's how I understood it reading others follies with grips.

I plan to take actual resistance measurements soon and after I take my best guess at what lives inside the grips; PCB or Nichrome, I'll order up some so that I'm not left gripless on these nicer days. Obviously be taking off the factory grips, which means pulling the wires off so I can actually slide off the grips without getting hung up by a wire leash of sorts.

Pursuant to 'doing a right proper job', I found some Sumitomo HM connectors and crimps at Eastern Beaver, which will allow me to plug right into the stock harness without cutting anything. No ScotchLok nonsense for me...I just have to verify if they are 3 or 4 terminal (or 2) - The Super Tenere is 3 I think.

Some interesting info here about DIY heated grips - there are plenty of others as well.

More when I get to it...
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post #16 of 18 (permalink) Old 05-29-2017, 08:19 PM Thread Starter
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Forgot about carbon heat tape...another possibility. I think my Milwaukee heated jacket uses carbon fiber tape...
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post #17 of 18 (permalink) Old 04-25-2019, 10:54 AM
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Hi @14ES , Any updates on the grips?

Candy Red 2014 FJR ES
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post #18 of 18 (permalink) Old 04-25-2019, 10:59 AM
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Hi @14ES , Any updates on the grips?

Candy Red 2014 FJR ES
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