Author Topic: DR650 Time for a service. (Read 850 times)

2StrokeDan · « **Reply #20 on:** March 05, 2020, 03:56:20 pm »

Quote from: Spectaitor on February 21, 2020, 10:54:36 pm

I can get everything like that from Startline, cheap as hell and made by the land of the Corona but I'd like filters that I know arent the bear minimum maybe?
Got the feeler guages already, going to sacrifice a set and bend em at an angle for ease of use and to reduce user error.

The valve adjustment wrench - Not sure what a wood screw is. Can I assume that a valve adjustment wrench is something akin to just a wrench that is the right size? Do other simple tools work?

The top of the valve clearance adjuster bolt has a square head, which is a perfect fit for one of the heads of the Phillips screws that comes out of your engine.

chopperpilot · « **Reply #21 on:** March 05, 2020, 05:05:11 pm »

Missed your bad fuel consumption.

I have done worse, by having fun on gravel.

Agree, it should be much lighter on fuel, although I never checked fuel economy on the DRs I had.

The DR's carb is quite simple. Take your time when taking it apart, and note where everything goes. When you remove the float bowl screws do it with a JIS star point. Japan Industry Standard. You can replace with Alan cap screws.

As was said already, check your carb is stock ito jets, and needle position.

You might have a too big main jet, or lifted needle. Back yard "tuner"!

MotoComp in Kzn stock the jets.

With a stock carb and clean/oiled filter you should be close to a good running DR.

Do you still have the stock exhaust?

For peace of mind check spark plug condition and valve clearances.

Shout if you need help!

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Spectaitor · « **Reply #22 on:** March 10, 2020, 08:08:49 am »

So I did the deed this weekend, was not as easy as I thought it would be seeing as the legends in Japan decided to use cheese to make all their screws.
Took me two takes to do because getting soft, easy to strip bolts off a carb simply requires a hacksaw cutting a flat for a decent flat screwdriver, don't mess around with anything else and then go buy capheads.

When I have time this weekend I will make a list of the things I got snagged on, want to adjust some stuff with the idling as it's not perfect yet but she rides

Full report then.

chopperpilot · « **Reply #23 on:** March 10, 2020, 09:04:57 am »

How was the carb's condition inside?

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Spectaitor · « **Reply #24 on:** March 10, 2020, 01:32:10 pm »

Honestly pretty good in my opinion, not muck or anything but the Needle was set to it's richest position so I raised the plastic clip on the needle to the top so the needle sits lower and will see how it runs over the next week or two.
Air filter was crazy dirty, don't know when last it had been looked at and I don't know if it matters but the oil was black as night and the oil filter looked pretty terrible too. Glad I sorted those out.

Still need to play around with the pilot screw. I have no idea how you adjust it while the bike is running unless you have a dwarf screw driver or something, I also do not have the requires 'ear' to tune it easily.

chopperpilot · « **Reply #25 on:** March 10, 2020, 01:49:25 pm »

The dirty air filter will contribute to a rich mixture.

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chopperpilot · « **Reply #26 on:** March 10, 2020, 01:51:09 pm »

Regarding the needle position, did you lift the needle, with circlip in a lower recess?

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Spectaitor · « **Reply #27 on:** March 10, 2020, 05:22:24 pm »

Needle looked like ---------------------|///--
/ being the grooves and
| being the plastic clip

Changed to ---------------------//|/--

Basically I made the needle sit deeper in the jet (I think)

chopperpilot · « **Reply #28 on:** March 11, 2020, 05:54:35 am »

So you dropped the needle, which will make it run leaner.

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Spectaitor · « **Reply #29 on:** March 11, 2020, 08:20:07 am »

Modified my earlier reply with the correct wording, will see how she runs now, is there an easier way to adjust the throttle cable for the idle. It's tucked quite well under that tank and after my ride to work and back yesterday I realised it's idling just too low.

chopperpilot · « **Reply #30 on:** March 11, 2020, 08:36:01 am »

There is an adjuster for setting the idling.

The throttle cables are only adjusted to get the slack on the throttle correct.

Stop the laziness, and remove the tank!

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Spectaitor · « **Reply #31 on:** March 11, 2020, 09:15:42 am »

I just filled my tank a few days ago without thinking

Quote from: chopperpilot on March 11, 2020, 08:36:01 am

There is an adjuster for setting the idling.

The throttle cables are only adjusted to get the slack on the throttle correct.

Stop the laziness, and remove the tank!

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Not where the throttle cables attach to the reel or whatever it's called?

chopperpilot · « **Reply #32 on:** March 11, 2020, 10:04:16 am »

Quote from: Spectaitor on March 11, 2020, 09:15:42 am

I just filled my tank a few days ago without thinking
Quote from: chopperpilot on March 11, 2020, 08:36:01 am
There is an adjuster for setting the idling.

The throttle cables are only adjusted to get the slack on the throttle correct.

Stop the laziness, and remove the tank!

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Not where the throttle cables attach to the reel or whatever it's called?

Jip, very close to the reel.

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cndavel · « **Reply #33 on:** March 11, 2020, 03:55:27 pm »

See photo....

Quote from: chopperpilot on March 11, 2020, 08:36:01 am

There is an adjuster for setting the idling.

The throttle cables are only adjusted to get the slack on the throttle correct.

Stop the laziness, and remove the tank!

Sent from my FIG-LX1 using Tapatalk

chopperpilot · « **Reply #34 on:** March 11, 2020, 10:29:46 pm »

Quote from: cndavel on March 11, 2020, 03:55:27 pm

See photo....

Quote from: chopperpilot on March 11, 2020, 08:36:01 am
There is an adjuster for setting the idling.

The throttle cables are only adjusted to get the slack on the throttle correct.

Stop the laziness, and remove the tank!

Sent from my FIG-LX1 using Tapatalk

Dankie!

Glo die idle kan maklik verstel word met die tenk in posisie!

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Spectaitor · « **Reply #35 on:** March 12, 2020, 08:09:29 am »

When I tried using that to adjust the idle it just never dd anything after turning and turning either in or out.

It then crossed my mind that it may just be screwed out so far so I sat this morning before work when I took the tank off to get the throttle cables nice and tight, but not too tight, and screwed it in forever until the idle rose up suddenly. That's sorted now at least.

Last question is on the pilot screw. I was told that the normal spot for it is 1 and 1/4 turns out from closed. I was then told that I'd hear the difference and find that 'sweet spot'. I think the sweet sport is around 1 and 3/4 turns.
Maybe too much or do I not have the 'ear' for it yet?
What exactly does it affect when turning in or out?

cndavel · « **Reply #36 on:** March 12, 2020, 08:20:52 am »

Chopperpilot should comment, my experience has been between 1,5 and 2,5 turns out on the pilot screw.

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chopperpilot · « **Reply #37 on:** March 12, 2020, 09:17:31 am »

Quote from: cndavel on March 12, 2020, 08:20:52 am

Chopperpilot should comment, my experience has been between 1,5 and 2,5 turns out on the pilot screw.

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Good advice!

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Spectaitor · « **Reply #38 on:** March 12, 2020, 12:28:41 pm »

Awesome, looks like I'm getting the hang of this now. Would love to buy a second DR for my wife and take it apart too

Crab · « **Reply #39 on:** March 12, 2020, 03:23:48 pm »

I understand that the needle can rub on the main jet and wear out. Check if the main jet is still round,or worn oval. There is a mod to prevent it from happening.