The DR650 thread

[NordieBoy]

Awesome thanks. Now this may seem like an odd question. I've read that some people run a 520 rear on a 525 chain and front to a) make the most of sprocket sizes and b) apparently it helps keep the chain clear of mud/dirt/grit etc. thereby extending chain life... blah blah blah. Thoughts?

Didn't really help. Unless you're constantly getting the rear deep in sand/mud it's not much of an advantage.

Don't think it extended the life of any component...

[humphrt]

Are there any disadvantages? Could it wreak the chain or sprockets?

[NordieBoy]

Are there any disadvantages? Could it wreak the chain or sprockets?

I felt the sprocket wore slightly quicker, but that's about all.

Going to a 45-46 rear also means going to a 112 link chain...

I got about 20,000km from a rear 44t 520 running on a 525 chain and front sprocket for 8,000km and then with a 520 sprocket and chain for the rest.

[humphrt]

Awesome info cheers

[pete-blen]

To who maybe interested...
the best bash plate system I have seen...
& seems like a good buy...for whats included...

https://tciproductsusa.com/index.php...roducts_id=569

[NordieBoy]

To who maybe interested...
the best bash plate system I have seen...
& seems like a good buy...for whats included...

https://tciproductsusa.com/index.php...roducts_id=569

Google "Rock Hard Rally Gear bash plate dr650"

[pete-blen]

Google "Rock Hard Rally Gear bash plate dr650"

Nice..& only $813.00 NZ plus shiping...
don't know how he makes any $ on them...

http://www.advrider.com/forums/showthread.php?t=806155

[NordieBoy]

Nice..& only $813.00 NZ plus shiping...
don't know how he makes any $ on them...

http://www.advrider.com/forums/showthread.php?t=806155

But they are nice

Makes them for differing KTM's too.

[cruza]

Thoughts please .
Done procycle carb kit (CV) airbox and open pipe . mixture screw 1 1/2 out .

Runs good pulls well . short idle ...pulls away fine

long idle ...lights etc , dies when go to pull away , unless I blip thottle , then it pulls away sweet.

Thought it may have been rich.... lowered needle until boderline lean , still does it
Leaned mixture screw , still does it . Richen mixture screw ...still does it

Shut butterfly on exhaust a bit ...still does it .

scratching my head

[NordieBoy]

Thoughts please .
Done procycle carb kit (CV) airbox and open pipe . mixture screw 1 1/2 out .

Runs good pulls well . short idle ...pulls away fine

long idle ...lights etc , dies when go to pull away , unless I blip thottle , then it pulls away sweet.

Thought it may have been rich.... lowered needle until boderline lean , still does it
Leaned mixture screw , still does it . Richen mixture screw ...still does it

Shut butterfly on exhaust a bit ...still does it .

scratching my head

Float level?
What needle clip?

[cruza]

Float level?
What needle clip?

Checked float level after putting 150 main jet in , seemed fine
3rd clip on needle

tried 2nd from top...borderline lean . And noticed no change when tried 4th clip from top , maybe just not quite as crisp on throttle

Anyway thats the end of it , was getting it as good as i could with cv to do comparsion when I fitted tm40.

Just putting tm40 in now .

[Phreaky Phil]

Checked float level after putting 150 main jet in , seemed fine
3rd clip on needle

tried 2nd from top...borderline lean . And noticed no change when tried 4th clip from top , maybe just not quite as crisp on throttle

Anyway thats the end of it , was getting it as good as i could with cv to do comparsion when I fitted tm40.

Just putting tm40 in now .

My guess is it's a shade lean at idle. Richen it a bit on the mixture screw a bit. I've noticed my DR likes to be a bit rich at idle.

[NordieBoy]

Just putting tm40 in now .

That'll do it too

[cruza]

That'll do it too

unbelievable difference , alot smoother and power hits a any revs as soon as throttle is opened.
If only they came ex factory with a tm40.

[NordieBoy]

If only they came ex factory with a tm40.

The FCR 39 MX is even moar betterer...
Closed throttle enrichment (less popping on the overrun), rollers on the slide (lasts longer), baffled float bowel (good at high speed over whoops).

The FCR is for people who like to fiddle. It's very adjustable.
The TM is for people who just want it to work.