DR650 gearbox whine

[Crisis management]

I'm not sure what all that has to do with DR650 gearbox noise. I was watching this thread with a keen eye in hope someone finds an answer incase our one developes a whine too, but it all seems to have fallen apart in pointless post count boosting dribble.

Annoying Guzzi owners is entertaining not pointless dribble thank you.

The thread has ground to a halt because no one has a solution to the problem. My pick is a design fault or cost saving by suzuki (like the "lets not put in the starter kick back clutch" in the 1998 models that lets cases shit themselves) that affects some bikes. My bike has only got 4000Km's on it so it obviously can become apparent fairly early on. Pity the previous owner didn't consider a warranty claim!
Oil may play a part as changing from semi-synthetic to full mineral has quietened mine a bit.

Solutions?
Keep the oil level to the full mark?
Repair it if it fails?
Other than tearing it down and replacing parts, I can't see there being anything else to do.

[laRIKin]

Some of Guzzi people have DR's and we just live with it.
I don't think the gear box will go bang in a bad way.
So as Crisis management said keep the oil up to the mark and change it regular a long with the filter.
And I would keep an eye for crap in the oil when you change it.
If you do get humps or filings, do worry.
Just ride it and be happy.

You grump T/A, go ride your bike.

[cooneyr]

Bumpedy bump - Finally bitten the bullet and decided to rip the engine out of the bike to get to the bottom of the 3rd gear whine. Other issues like valve guide seals starting to go (smoking on startup) and needing to spend time on my masters degree (i.e. not riding) are also contributing factors.

Went and talked to Dirt Action Services in chch today and the plan is to get the engine out this weekend (along with the shock which I'm getting serviced, revalved and resprung at the same time) and delivered to DAS. Got a pretty good possible explanation from DAS about the 3rd gear whine - the bushings are not properly aligned with the gear and hence the gear gets a little out of line with its mate and makes some noise. This is not helped by the fact that 3rd gears are in the middle of the gear shafts i.e. where the most movement due to shaft flex occurs. Also told it is not uncommon for this to happen and obviously it is not something that will go away.

Given DAS work loads and my need to do my masters probably be about 3-4 weeks and I'll hopefully have more of an answer on this.

Cheers R

[Crisis management]

Sounds like a plausible explanation R, keep us posted as I'm interested in the definitive explanation (and the costs of rectifying it!).

I take it you will have it back for the capital coast so we can compare noises?

Iain

[cooneyr]

Sounds like a plausible explanation R, keep us posted as I'm interested in the definitive explanation (and the costs of rectifying it!).

I take it you will have it back for the capital coast so we can compare noises?

Iain

Will let everyone know how it goes. Its not going to be cheap though - could be around $2k with the shock work but unfortunately that is life.

If I don't have it back for the CCA ride I'll be making some not so PC noises! Should be no worries though - heaps of time which is one reason why I'm doing it now.

Cheers R

[jim.cox]

Will let everyone know how it goes. Its not going to be cheap though - could be around $2k with the shock work

Wouldn't you be better off just flicking the DR for what you can get for it as

And putting the $$ toward that KTM you lust after

It will be nearer three grand than two and you're just throwing it away

Just my $0.02

[Transalper]

There's now two riders in the cooneyr household, I think you'll find he's goning to hand me down the DR650 to the wifey when the KTM comes along. She ain't on full licence yet so no rush,

[jim.cox]

There's now two riders in the cooneyr household, I think you'll find he's goning to hand me down the DR650 to the wifey when the KTM comes along. She ain't on full licence yet so no rush,

But wifey aint got no bike licence - so its going to be a long while till she can ride the DR, even if she wants to

Better to be riding a KTM now

[cooneyr]

Boys boys Jim meet TA, TA meet Jim. Jim works in the office next door to me so up with the play most of the time. Yes wifey is working on her license - going to sit her restricted in mid March so full around September some time. Also as you both know there is an op coming up that may change the state of play significantly. The DR will be in the shed for another year or so no matter what given this change. I just need to keep my mouth shut about my lusting for

Cheers R

[Transalper]

Boys boys Jim meet TA, TA meet Jim. ...

It takes two to and with the way Jim has filled out his profile i had already decided not to partake any further in the conversation as he looked to me to be one of them I would be better to ignore.
Thanks cooneyr for the intro and clearing the air.
Now back to gearboxes?

[cooneyr]

Back on track. One bike has been gutted. Got everything from airbox (going to clean airbox and carb boot) to exhaust can (made it easier to get shock off) off and everything in between. Took all of about 1.5 hrs from go to wo with help from lil bro.

I'm going to have a look at the carb while its off. Probable wont do much but I'm thinking about the extra hole in the slide seeing if I can fatten up the lower end of the rev range (pilot jet) a just little though at it can be a bit surgey at lower revs. Got some reading to do before I go there though.

Cheers R

[NordieBoy]

Back on track. One bike has been gutted. Got everything from airbox (going to clean airbox and carb boot) to exhaust can (made it easier to get shock off) off and everything in between. Took all of about 1.5 hrs from go to wo with help from lil bro.

I'm going to have a look at the carb while its off. Probable wont do much but I'm thinking about the extra hole in the slide seeing if I can fatten up the lower end of the rev range (pilot jet) a just little though at it can be a bit surgey at lower revs. Got some reading to do before I go there though.

Cheers R

I like the valve adjustment tool behind the engine

[warewolf]

I like the valve adjustment tool behind the engine

Ah yes, the American screwdriver - supersized!

PS You gonna weigh that thing? Inquiring minds want to know

[cooneyr]

Ah yes, the American screwdriver - supersized!

PS You gonna weigh that thing? Inquiring minds want to know

Just chucked it on the scales. Minus the stator (found the bloody plug in the wiring loom after I gutted the LHS cover!) and 2.3l of oil is is close 47kgs. I was wondering why it was so damn heavy to move around. Our scales are pretty inaccurate though - I can weigh anywhere between 95 and 110 on them. I know I'm closer to the top end of that range.

Alright then WW - start gloating about how much lighter the LC4 640 motor is

Cheers R

[warewolf]

Dunno that it is, don't know what they weigh. Just never seen a number for the DR before. Water cooled vs air cooled differences, too. I'm sure on one of the 690 threads there'll be a comparison of the 640 vs the 690 weights.