Suzuki DR 650

Template: Infobox motorcycle / Maintenance / parameters

The Suzuki DR 650 is an enduro or enduro motorcycle of the Japanese company Suzuki, which was sold from 1990 to 2000 in a total of 6 different designs. The DR 650 was located between the DR 350 as a lightweight entry-level Enduro and the DR 800 as a touring enduro.

Model history

The DR 650 came in 1990 as a successor to the Suzuki DR 600 and response to competing models like the Honda NX 650 Dominator or Yamaha XT 600 on the market.

In addition to the unclad Enduro DR 650 R ( SP41 ) has now also offered with the DR 650 RS ( SP42 ) a version with a frame fixed fairing than light travel Enduro, 1991-1996, equipped with an electric starter, as DR 650 RSE (which SP43 ) was sold. The undisguised DR 650 Enduro R 1992 was a more modern design ( SP44 ) and was from 1994 to 1995 equipped with electric start as DR 650 RE ( SP45 ) sold. In 1996, a newly developed model, the DR 650 SE ( SP46 ) was put on the market. The sale was set in Germany in 2000.

The Suzuki produced from 1997 to 2003 XF 650 Freewind can be considered, although their suitability for off-road use due to the high weight and the terrain unsuitable tires is already questionable as the successor to the DR 650 RSE.

In the U.S. and Canada, the DR 650 SE ( SP46 ) is technically unchanged distributed to the current 2011 model year.

SP41- SP45

The models SP41 SP45 to have an inherited but revised the previous model engine with larger displacements ( Bore × Stroke 95 × 90.4 mm instead of 94 × 85 mm) and higher compression ( 8.5:1 9,7:1 instead ) and a 40 mm CV carburetors instead of the 38 mm flat slide carburetor. The DR 650 has taken over the last model year of the DR 600 built rear disc brake. The DR 650 has a stable with 41 mm thick suspension fork stanchions than the DR 600 ( 39 mm).

Known issues:

More prone rust frame
More prone exhaust manifold and muffler rust
Cylinder head, run-in camshaft and rocker arm (due to low oil level)
Pitting in gear pair of the third gear
Coupling problems by broken-in thrust washers behind the clutch basket
Too loose or too tight balance shaft chain
Very rare: SP44 defect of the CDI

In addition, all large-volume single-cylinder to protect the bearings and the primary and secondary drive should generally not moved untertourig, since it may happen at low speeds that the oil pressure is not sufficient.

SP46

For the SP46 has undergone numerous changes. It was a completely newly developed, short-stroke design of motor used ( bore x stroke = 100 × 82 mm instead of 95 × 90.4 mm). This has two chain-driven rather than just one gear-driven balance shaft. The cylinder does not have a steel liner more but is provided with a Nikasil coating. The still not adjustable suspension fork now has standpipes with 43 mm diameter. It tries to prevent rust has been swingarm is made of aluminum instead of steel and stainless steel rear silencer. The tachometer of the previous models is eliminated. The SP46 has a wider drive chain 525 and a shorter transmission ratio. The curb weight ( ready to ride ) was reduced slightly from 177 kg to 165 kg. Fundamental changes during construction were not made. Only the decor was changed annually and the slip clutch the starter freewheel replaced in the construction years 1998 and 1999 by a fixed gear pair. The production in 2000 was given instead of the previously installed a paper gasket Cylinder base made of aluminum. The SP46 was equipped in Switzerland and Austria to comply with the emission limits with a secondary air system. In Switzerland, it was homologated in addition to the enduro tires with a Supermoto-Rad-/Reifenkombination. This was in 1996 a Supermoto SUZUKI offered in Switzerland directly from the dealer, which was done in Germany in 2005 with the DR Z400SM.

Known issues:

Spring elements matched very soft
Seat very soft
More prone rust frame
More prone exhaust manifold rust
Rare: leaking cylinder base gasket with the model years 1996-1999
Rare: pitting in gear pair of the third gear
Very rare: erupting motor housing by missing starter friction clutch for the model years 1998 and 1999 ( " Engine Grenade " )
Very rare: tearing off the top leadership of the drive chain at to tighter chain

In Germany sold models

SP41B: DR 650 R Dakar ( 1990-1991) - Enduro fairing and Kickstarter
SP42B: DR 650 RS ( 1990-1991) - Tour trim and kick starter
SP43B: DR 650 RSE ( 1991-1996 ) - Tour trim and electric start
SP44B: DR 650 R ( 1992-1995) - Enduro fairing and Kickstarter
SP45B: DR 650 RE (1994-1995 ) - Enduro trim and electric start
SP46B: DR 650 SE ( 1996-2000) - set completely revised model with Enduro trim and electric start, in 2000 the sales in Germany was

Note: The B after the name indicates the German (European) destination.

" The A stands for Foreign Models "

Tuning

The most common modifications are:

Exhaust from the accessories
Fork springs from the accessories
Complete strut from the accessories
Aluminum handlebars
Shorter gear ratio (usually pinion with 15 teeth front 43 teeth rear)
Steel braided brake lines
Flat slide carburetor ( Mikuni TM 40 / TM 42) or modification of the series carburetor
Larger tank - plastic tank
Stainless steel manifold
(in winter or in the rain ) Ü-Ei or old film canister in the evening on the ignition, so that no water can penetrate

Specifications

For clarity, the data of the SP44B (DR 650 R) 1992-1995

Dimensions and Weight empty

Overall length 2395 mm
Overall width 870 mm
Total height 1270 mm
Ground clearance 260 mm
Empty weight 177 kg, according to the registration document

Motor

Single-cylinder four-stroke engine
Luft-/Ölkühlung
Dual ignition
An overhead camshaft
Actuates four valves via rocker arms
Two underlying balance shafts
Air filter with polyurethane foam insert
Starter Primary kick Starter

Mixture preparation

CV carburetors Mikuni BST 40 SS
Passage 40 mm
Idle speed ~ 1500 min -1
Float height 14.7 mm
Main jet 137.5
The main air jet 0.7 mm
Nozzle needle 6F6
Needle jet Y2
Throttle slide # 110
Pilot jet # 47.5
Bypass No. 1,2,3,4 0,8 mm
Leerlaufauslass 0.8 mm
Valve seat 2.3mm
Kaltstartdüse # 40
Leerlaufregulierschraube out a rotation
Idle air 1.4 mm
Throttle cable free play 0.5-1.0 mm
Chokezugspiel 0.5-1.0 mm
( Throttling possible about carburetor stop and needle )

Transmission

Mechanically actuated multi- disc wet clutch
Five-speed synchromesh
1 circuit diagram, N, 2,3,4,5
Primary reduction ratio 2.200 (66 /30)
Final drive ratio 2.625 (42 /16) (chain / sprocket )
Gear ratios 1st 2.416 (29/ 12) 2nd 1.625 (26/ 16) 3rd 1.263 (24/ 19) 4th 1.000 (21/ 21) 5th 0.826 (19/ 23)
Drive Chain 520, 114 links

Electrical System

Suzuki Ignition CDI
Ignition timing 0 ° BTDC below 2200 min-1
28 ° before TDC over 4300 min-1

Electrode gap 0.8-0.9 mm
Radio performance over 8 mm at 1 atm

Primary 0.1-1.0 ohms
Secondary 23-35 kilohms

Charging coil 0.1-1.5 ohms
Excitation coil 240-360 ohms
Abtasterspule 160-240 ohms

Wheels and tires

Wire spoke wheels with aluminum rims

Suspension

Front: Telescopic fork springs with linear characteristic, Teleskopgabelhub 240 mm
Rear: Strut without reservoir, progressive characteristic to lever system, rear wheel travel 220 mm

Fuel, oil and oil pump

Engine oil grade SAE 10W/40 API SE or SF
Engine oil capacity: oil change 2000 ml, 2150 ml with filter change, engine overhaul in 2600 ml
Oil pump reduction ratio 2.688
Oil pressure ( at 60 ° C): 30 kPa ( 0.3 kg / cm ²) and 70 kPa ( 0.7 kg / cm ²) at 3000 min-1
Fork oil 10 W, 536 ml per fork leg
Brake Fluid DOT 4 or higher

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