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Author Topic: DR650 upper chain roller  (Read 671 times)

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Offline Manfred

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DR650 upper chain roller
« on: April 14, 2010, 04:48:22 pm »
Greetings all

I removed the upper chain roller and closed it with this:



To the DR650 guru's out there, is this flat enough..?
 

Ganjora

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Re: DR650 upper chain roller
« Reply #1 on: April 14, 2010, 05:22:12 pm »
take the screw out.
leave it open,  or if you have to seal it use pratley steel.
 

Ganjora

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Re: DR650 upper chain roller
« Reply #2 on: April 14, 2010, 05:24:18 pm »
when you remove your side stand switch,  pull out the little holders forth cable
same story with the pratley in the holes.   
completely sealed,  completely flush.
 

Offline Manfred

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Re: DR650 upper chain roller
« Reply #3 on: April 14, 2010, 06:19:44 pm »
Sweet.
Have some of that pratley metal stuff.
Mix the two together, silver colour.
Sets rock hard.

What about filing down.  Wouldnt that be the best..?
 

Ganjora

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Re: DR650 upper chain roller
« Reply #4 on: April 14, 2010, 06:31:54 pm »
filing it down?
smudge it in nicely,  then,  when semi dry-ish,  wipe with a rag for any excess.
 

Offline RobC

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Re: DR650 upper chain roller
« Reply #5 on: April 14, 2010, 06:50:39 pm »
I would give it a dab of silicone sealer... that is a welded nut on the frame, I do not think it has a hole into the tube?
 

Ganjora

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Re: DR650 upper chain roller
« Reply #6 on: April 14, 2010, 07:18:47 pm »
correctomundo RobC
 

Offline Manfred

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Re: DR650 upper chain roller
« Reply #7 on: April 14, 2010, 07:21:29 pm »
Good observation RobC.

Will remove that fastener and seal with Silicone or that pratley stuff.
 

Offline RobC

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Re: DR650 upper chain roller
« Reply #8 on: April 14, 2010, 07:22:49 pm »
Another dumb question from the KLR crowd... why do you guys want to take it off? I would have thought it would be a good thing to have the roller? Most big MX bikes do?
(Beginning to see a DR parked next to the Green Ogre)
 

Offline Inprogress

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Re: DR650 upper chain roller
« Reply #9 on: April 14, 2010, 07:23:54 pm »
Another dumb question from the KLR crowd... why do you guys want to take it off? I would have thought it would be a good thing to have the roller? Most big MX bikes do?
(Beginning to see a DR parked next to the Green Ogre)

It has a tendency to break off and takes a chunk of your frame with it.  :thumleft:
If an idle mind is the devil's workshop, then a busy mind is God's canvas

 

Offline Manfred

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Re: DR650 upper chain roller
« Reply #10 on: April 14, 2010, 07:25:55 pm »
And if you weigh in the region of 100kg's, that will happen sooner than you think.

Id rather be safe than sorry   ;D
 

Offline Martin-DR650

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Re: DR650 upper chain roller
« Reply #11 on: April 14, 2010, 08:12:39 pm »
Nie nodig om die gate te seel nie! :eek7:

Los dit net oop. Punt.
Too much of a good thing can be wonderful !
 

Offline RobC

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Re: DR650 upper chain roller
« Reply #12 on: April 14, 2010, 09:01:48 pm »
And if you weigh in the region of 100kg's, that will happen sooner than you think.

Id rather be safe than sorry   ;D
Eish! So that is the DR Doo?  :o
Minor issue if you know about it, with some proper welding and gusseting one could overcome that tendency but only on an oldish bike that needs a frame respray. :thumleft:
The more I read about them the more I am starting to like them. At least they have no radiator that springs leaks...
 

Offline lecap

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Re: DR650 upper chain roller
« Reply #13 on: April 15, 2010, 07:34:46 am »
Blind allen set screw M8x12, no matter what tip. Fit with low strength threadlock.

It's not an issue to remove the upper roller as it's totally useless. Suspension travel is not enough to allow the chain anywhere near the airbox or to increase slack to unhealthy amounts. On hard landings the chain hits the roller hard and sooner or later breaks it out of the frame.
I considered a modification with a support for the rollers shaft from the engine mount. Never made it as it's easier to just remove the roller all together.
"If you think it's expensive to hire a professional to do the job, wait until you hire an amateur." (Red Adair)
 

Offline Manfred

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Re: DR650 upper chain roller
« Reply #14 on: April 15, 2010, 07:37:49 am »
LeCap, what is a "Blind allen set screw M8x12"

Is that something like I have put on my bike..?
 

Offline lecap

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Re: DR650 upper chain roller
« Reply #15 on: April 15, 2010, 07:58:06 am »
A set screw is a fastener to fix something with the geometrical form of the tip rather than with its head. A blind set screw is one without a head but with only a slot or allen fit.
They are (for example) used to secure pulleys onto shafts.

Have a look here to see what it looks like
or just ask your friendly hardware & fastener merchant :D
"If you think it's expensive to hire a professional to do the job, wait until you hire an amateur." (Red Adair)
 

Offline Manfred

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Re: DR650 upper chain roller
« Reply #16 on: April 15, 2010, 08:08:54 am »
I see what you mean.

Will check it out today, thanks
 

Offline Inprogress

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Re: DR650 upper chain roller
« Reply #17 on: April 16, 2010, 09:35:14 am »
Also known as a Grub-screw or as some in our workshop called them, Grab-screw  :D
If an idle mind is the devil's workshop, then a busy mind is God's canvas