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Search: Posts Made By: thump!
Forum: Thumpers Today, 04:03 AM
Replies: 24,947
Views: 2,974,539
Posted By thump!
Too much carb. The head can't flow that much air....

Too much carb. The head can't flow that much air. It would run poorly if at all at large throttle openings.
Forum: Thumpers 07-21-2014, 01:52 PM
Replies: 96,035
Views: 18,089,507
Posted By thump!
You may not need the needle. More often than not...

You may not need the needle. More often than not it's just the o rings.
Forum: Thumpers 07-20-2014, 06:02 PM
Replies: 24,947
Views: 2,974,539
Posted By thump!
Keep in mind 90-93 is a different size plug from...

Keep in mind 90-93 is a different size plug from 94+
Forum: Thumpers 07-20-2014, 02:06 PM
Replies: 96,035
Views: 18,089,507
Posted By thump!
There is a both a course and fine adjustment on...

There is a both a course and fine adjustment on the idle speed screw. Sounds like you need to trim the course adjustment up a bit. Just release the locknut and screw the shaft in a turn or two. Your...
Forum: Thumpers 07-20-2014, 04:54 AM
Replies: 96,035
Views: 18,089,507
Posted By thump!
My thoughts exactly. IMO one should never use...

My thoughts exactly. IMO one should never use non-removeable thread locker.
Forum: Thumpers 07-18-2014, 10:30 AM
Replies: 24,947
Views: 2,974,539
Posted By thump!
Also I run my idle speed around 1800 rpms. Mine's...

Also I run my idle speed around 1800 rpms. Mine's a kicker and flameouts at lights suck.
Forum: Thumpers 07-18-2014, 08:20 AM
Replies: 96,035
Views: 18,089,507
Posted By thump!
The long bolts visible in your picture. Notice...

The long bolts visible in your picture. Notice the oil trace begins there.
Forum: Thumpers 07-18-2014, 08:06 AM
Replies: 96,035
Views: 18,089,507
Posted By thump!
Suzuki missed the boat when they designed the...

Suzuki missed the boat when they designed the DR650 without a 6-speed. With appropriate ratios there'd be no sprocket swapping needed. Just imagine a 1/2 gear lower 1st and a 1/2 gear higher 6th....
Forum: Thumpers 07-18-2014, 07:36 AM
Replies: 24,947
Views: 2,974,539
Posted By thump!
Fine tune your idle mixture. It's probably...

Fine tune your idle mixture. It's probably slightly too lean. Doesn't take much (like 1/8 turn) to make a difference. I use the lean roll-off method:



Reduce engine idle speed to the minimum...
Forum: Thumpers 07-17-2014, 05:55 PM
Replies: 96,035
Views: 18,089,507
Posted By thump!
Hardly a genius but you're welcome. Glad it...

Hardly a genius but you're welcome. Glad it worked for you.
Forum: Thumpers 07-17-2014, 05:43 AM
Replies: 24,947
Views: 2,974,539
Posted By thump!
For me the drawback on the drz400 is the 5 spd...

For me the drawback on the drz400 is the 5 spd gearbox. You really have to spin those babies up to cover the paved sections. The weight is not significantly different.
Forum: Thumpers 07-17-2014, 05:38 AM
Replies: 96,035
Views: 18,089,507
Posted By thump!
I've never removed the cover on a 650 but I've...

I've never removed the cover on a 650 but I've built numerous dr350s. On those there are bolts INSIDE the valve adjustment ports that must be removed also. A service manual will show this if they...
Forum: Thumpers 07-15-2014, 01:35 PM
Replies: 96,035
Views: 18,089,507
Posted By thump!
http://webpages.charter.net/jrandall/redirects/zer...

http://webpages.charter.net/jrandall/redirects/zerks_rdr.htm
Forum: Thumpers 07-15-2014, 06:42 AM
Replies: 96,035
Views: 18,089,507
Posted By thump!
They clean well but be aware they are an abrasive...

They clean well but be aware they are an abrasive and they WILL dull plastic parts.
Forum: Thumpers 07-14-2014, 07:22 PM
Replies: 96,035
Views: 18,089,507
Posted By thump!
Part #26 on the fiche here:...

Part #26 on the fiche here: http://www.ronayers.com/CYLINDER-HEAD-C148667.aspx
Forum: Thumpers 07-14-2014, 07:27 AM
Replies: 96,035
Views: 18,089,507
Posted By thump!
Yes , with the swingarm off you can remove that...

Yes , with the swingarm off you can remove that bolt using a regular box end wrench.
Forum: Thumpers 07-14-2014, 07:06 AM
Replies: 96,035
Views: 18,089,507
Posted By thump!
Just a WAG but have you replaced the o-ring under...

Just a WAG but have you replaced the o-ring under the intake "manifold"?
Forum: Thumpers 07-12-2014, 11:22 AM
Replies: 96,035
Views: 18,089,507
Posted By thump!
That's exactly what it is. The person who removed...

That's exactly what it is. The person who removed the NSU did not remove the plunger and spring from the gear shaft. Since there was nothing to retain them they just fell out into the sump. Good...
Forum: Thumpers 07-12-2014, 05:13 AM
Replies: 24,947
Views: 2,974,539
Posted By thump!
Nope. Different rotor (and hub).

Nope. Different rotor (and hub).
Forum: Thumpers 07-12-2014, 05:11 AM
Replies: 96,035
Views: 18,089,507
Posted By thump!
Mine does that from time to time (23k miles)....

Mine does that from time to time (23k miles). It's no big deal - just consider it top end lubrication. [emoji4]

I think it's from oil pooling around my 15 year old valve stem seals when the bike...
Forum: Thumpers 07-11-2014, 01:40 PM
Replies: 96,035
Views: 18,089,507
Posted By thump!
How much do you expect to ride at night? The HID...

How much do you expect to ride at night? The HID definitely puts out more light but not worth the hassle or expense for me since I never ride after dark unless I get caught out somewhere. Just too...
Forum: Thumpers 07-10-2014, 02:19 PM
Replies: 96,035
Views: 18,089,507
Posted By thump!
Wheel balance and roundness/trueness. Wheel...

Wheel balance and roundness/trueness. Wheel bearings. Tire pressures. Big windscreen. Excessive tire wear. Too much weight on rear wheel. Steering srem bearings.

The "rule of thumb" for...
Forum: Thumpers 07-10-2014, 02:09 PM
Replies: 24,947
Views: 2,974,539
Posted By thump!
Correction 14 to 15 = 7.1% reduction in rpms ...

Correction
14 to 15 = 7.1% reduction in rpms
42 to 39 = 7.1% reduction in rpms
for any given mph

Sorry 'bout that [emoji4]
Forum: Thumpers 07-10-2014, 02:01 PM
Replies: 96,035
Views: 18,089,507
Posted By thump!
I've seen 100 on the speedo several times. Stable...

I've seen 100 on the speedo several times. Stable as a rock. IRC TR-8 on the front, Duro HF904 on the rear. Both at 22psi and static balanced when mounted. No windscreen and no box on the back but...
Forum: Thumpers 07-08-2014, 07:27 PM
Replies: 24,947
Views: 2,974,539
Posted By thump!
Any DR350S (90-93) model CDI should work. SE...

Any DR350S (90-93) model CDI should work. SE model CDIs won't (dual pickups). And, FWIW, it will run with the CDI from the 90-93 dirt model but won't have a tachometer output. Those are relatively...
Forum: Thumpers 07-08-2014, 06:11 AM
Replies: 96,035
Views: 18,089,507
Posted By thump!
The energy used by the CDI to make spark is...

The energy used by the CDI to make spark is generated by a dedicated set of windings in the stator completely separate (electrically) from the charging circuit. As Procycle says it only uses charging...
Forum: Thumpers 07-08-2014, 06:04 AM
Replies: 96,035
Views: 18,089,507
Posted By thump!
It's not an oil seal. "Sealed" bearings are...

It's not an oil seal. "Sealed" bearings are designed to retain grease and keep dirt out but they won't retain oil under pressure. If that one did you wouldn't need an external seal retainer.
Forum: Thumpers 07-06-2014, 11:40 AM
Replies: 96,035
Views: 18,089,507
Posted By thump!
Sounds like you might have a DR350S wheel. I ran...

Sounds like you might have a DR350S wheel. I ran one on my first DR650 without issues although it was slightly more narrow than the OE 650 wheel.
Forum: Thumpers 07-06-2014, 11:28 AM
Replies: 96,035
Views: 18,089,507
Posted By thump!
Both my DR650s were exactly like that and the...

Both my DR650s were exactly like that and the install procedure was as described. A little awkward and definitely messy (oily) but pretty easy.
Forum: Thumpers 07-06-2014, 11:20 AM
Replies: 24,947
Views: 2,974,539
Posted By thump!
The gas in the right side is what I call reserved...

The gas in the right side is what I call reserved - reserve. I've had to use that on two occasions by laying the bike on its side. But you're right - there's some you can never access no matter what...
Forum: Thumpers 07-03-2014, 03:57 AM
Replies: 24,947
Views: 2,974,539
Posted By thump!
The charging system and ignition systems of these...

The charging system and ignition systems of these bikes are completely separate. In fact, they will run quite happily with no charging system at all.
Forum: Thumpers 06-30-2014, 05:14 PM
Replies: 24,947
Views: 2,974,539
Posted By thump!
It is an idle FUEL screw. Backing it out makes...

It is an idle FUEL screw. Backing it out makes the idle mixture richer. Every idle air screw I've ever seen was upstream of the slide (i.e. on the air filter side).

Jim
Forum: Thumpers 06-29-2014, 05:23 PM
Replies: 24,947
Views: 2,974,539
Posted By thump!
DR350 cylinder heads are becoming very difficult...

DR350 cylinder heads are becoming very difficult to find. It is, IMO, the machine's Achilles heel and bikes with damaged heads often become organ donors because it's so expensive to repair them. Good...
Forum: Thumpers 06-29-2014, 01:40 PM
Replies: 96,035
Views: 18,089,507
Posted By thump!
Yup ~5 ft-lbs That's just a tiny bit past snug. ...

Yup ~5 ft-lbs That's just a tiny bit past snug.

You may find that the reason there's no bolt there now is some previous "mechanic" has already stripped the threads in that hole. It's easy to do....
Forum: Thumpers 06-29-2014, 11:59 AM
Replies: 24,947
Views: 2,974,539
Posted By thump!
Yes there is a spring-loaded "plunger" that fits...

Yes there is a spring-loaded "plunger" that fits into the hole in the shaft and contacts a point on the plastic neutral sending unit the transmission is in neutral. When that occurs it completes the...
Forum: Thumpers 06-29-2014, 06:33 AM
Replies: 96,035
Views: 18,089,507
Posted By thump!
Your links to the pics aren't working for me. But...

Your links to the pics aren't working for me. But 3,4 & 5 are all 6mm bolts of different lengths. 19 is an engine mounting bolt and is much larger 10mm x 130mm.

Jim
Forum: Old's Cool 06-28-2014, 02:11 PM
Replies: 7,108
Views: 3,238,278
Posted By thump!
It's a really nice looking bike. But, my...

It's a really nice looking bike. But, my definition of "cafe" does not include forward pegs. A cafe bike should corner well. IMO that's really hard to do if you don't have your feet under you so you...
Forum: Thumpers 06-28-2014, 02:02 PM
Replies: 96,035
Views: 18,089,507
Posted By thump!
Picture on (actually slightly off) the TAT in...

Picture on (actually slightly off) the TAT in Oklahoma. My buddy's XR required wheel bearings. Fortunately they are the same as in certain models of Delco...
Forum: Thumpers 06-27-2014, 04:19 AM
Replies: 96,035
Views: 18,089,507
Posted By thump!
I am not familiar with that carburetor. However,...

I am not familiar with that carburetor. However, FWIW, an unstable idle is symptomatic of a worn slide in flatslide carburetors in general.
Forum: Thumpers 06-26-2014, 06:31 PM
Replies: 24,947
Views: 2,974,539
Posted By thump!
I don't think the VRR uses the battery as a...

I don't think the VRR uses the battery as a "reference". Case in point my DR350S has no battery at all. Instead I'm running a 1000 mfd capacitor. The regulator/rectifier controls the system voltage...
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