Yamaha XJ 600 N / S Diversion

Yamaha
XJ 600 S Diversion, built in 1997
XJ 600 N / XJ 600 S Diversion
Manufacturer	Yamaha engine
Production period	1991 to 2003
class	motorcycle
design type	All-rounder , Sports tourer
Motor data
4-cylinder four-stroke in - line engine
Displacement (cm³)	598
Power (kW / PS )	45 kW / 61 hp at 8500 rpm
Torque ( N m )	53 Nm at 7500 rpm
Top speed ( km / h)	182 km / h

transmission	6-speed
drive	Chain drive
Brakes	front: hydraulic single disc brake 320 mm or double disc brake 298 mm (from 1997) rear: hydraulic single disc brake 245 mm
Wheelbase (mm)	1445
Dimensions (L × W × H, mm):	Length: 2170 mm Width: 735 mm
Seat height (cm)	77.5
Empty weight (kg)	195
Previous model	XJ600
successor	Yamaha XJ6

XJ 600 S Diversion (RJ01) on tour (in Großwulkow on the Romanesque Road )

XJ 600 N and XJ 600 S Diversion are motorcycle models of the Japanese motorcycle manufacturer Yamaha from the XJ series . The US American and Australian trade names are Seca II. The motorcycle was offered in two different versions. From 1991 to 2003 as a sports tourer with half-shell fairing (XJ600S Diversion) and from 1993 to 2003 as a naked bike without fairing (XJ600N).

Due to its sporty properties as well as its great suitability for everyday use and because of its low price, this motorcycle is still widely used today.

General

The XJ 600 S Diversion has been completely redesigned and has little in common with the XJ 600 . 61 hp, but with only one disc brake at the front instead of the double disc of the XJ 600, and with a 38 mm fork. Some users initially reported problems with the fuel tap and the electrical system. In 1993, as a sister, the XJ 600 N (not "Diversion") was launched as an uncovered model.

In the course of the model upgrade in 1994 and 1996, some problem points were eliminated. The fairing and the rear also experienced changes, so that you B. should be careful with replacement half-shells or pannier rack systems - from 1996 the fit of such parts for the old models is not guaranteed.

With the model 4 LX, an XJ 600 came onto the market in the mid-1990s, which was throttled to 34 hp at the factory and was therefore suitable for novice drivers; after previous models had from 50 hp. The last and most developed model is the RJ 01 from model year 1998. Here a more stable fork (41 mm) and the second disc brake at the front were used.

From 2003, the XJ 600 was phased out due to the tightened emission limits, without Yamaha presenting a direct successor. The FZ 6 Fazer has a sportier profile (including 98 HP engine), while the Suzuki Bandit 600 dominated the field of 600 tourers for a long time.

	XJ600S Diversion	XJ600N
Years of construction	1991-2003	1993-2003
Vehicle type	4BR (A) / 4BR (B) / 4LX / RJ01	4BR (A / B) / 4LX / RJ01
design type	Half shell	Naked bike

Weak points

The entire XJ series does not actually have any typical weak points, as it is based on sophisticated and uncomplicated technology. At most, both XJ600s have a certain tendency towards handlebar flutter. As a rule, however, you will only notice this if z. B. tires were driven "square" due to carelessness with the air pressure or if the steering head bearing was installed inaccurately. An error in the installation of the swing arm or a rear wheel that is not precisely aligned can also have an effect in this way.

The carburettors should be synchronized from time to time and the valve clearance should also be checked regularly, since negligence on the part of the user can sometimes significantly increase fuel consumption. Those who are technically not completely untalented can help themselves.

In the early series (beginning of 1990), due to the vacuum carburettor, starting problems occur if the motorcycle is stationary for a few days or the outside temperature is low. A short-term remedy here is to set the fuel tap to "pri", pull the choke and wait a few minutes. Then operate the starter several times at intervals of one second. A permanent remedy is a modification kit for the carburetor (Service Tip No. 62KD 27/94 and 10KD 03/94 from 1994) for subsequent conversion by Yamaha, consisting of an S-shaped hose piece and 4 choke nozzles of size 52.5 or a conversion to an electric fuel pump.

Opportunities for improvement

As with all "bread and butter" machines, the original chassis properties can be optimized.

suspension

The suspension of the old XJ 600 series is almost even better than that of the new series. This is thanks to the different concepts.

The 51J was supposed to be a super athlete on the drawing board. However, she was seen more as a sports tourer and bought accordingly. In contrast to many other motorcycles of the 1980s, the chassis of the 51J harmonized with the engine power. Nevertheless, the chassis is second choice by today's standards. The Diversion, on the other hand, was planned as a touring machine from the start and was therefore equipped with suitable, but not excellent, spring elements. This manifests itself in particular in the too spongy fork suspension and the lack of torsional rigidity of the models before 1998.

In both cases, it is advisable to first convert to progressive fork springs. This not only makes the response behavior more direct, which provides more feedback from the road to the driver, it also prevents the fork from bottoming out in connection with the conversion to a more viscous fork oil (15 instead of 10 viscosity).

In the models of the XJ 600 before 1998 one should also consider installing a fork stabilizer, as it can greatly improve the torsional stiffness of the fork, which is only sufficient - this is a significant safety gain, especially when braking sharply.

The shock absorber can also be exchanged for higher quality accessories, but the improvement in behavior is usually not worth the very high cost (approx. 500 euros).

Braking system

In the case of the XJ 600, the usual distinguishing criterion also applies here: the single-disc brake on models before 1998 is sufficient, but no longer. The double disc brake of the motorcycles built from 1998 not only ensures better braking performance, it also prevents the fork from warping slightly, which the old models from 1991 to 1997 still have. The rubber lines are often seen as the weak point in the brake systems. As with all cars and motorcycles with rubber brake lines, these ensure a softer pressure point, which can be improved by converting to steel-braided brake lines .

Tires

The factory tires and later accessory tires (such as Michelin Macadam) are now considered to be out of date. According to many users, the following conversions have made significant progress in tire development: The first choice among the tires for most XJ drivers is the BT45 "Battlax" from Bridgestone. With two compounds, hard in the middle, soft on the flanks , the manufacturer achieves high mileage, on the one hand, between 8,000 and 15,000 kilometers for the front tire and 4,000 km - 10,000 km for the rear tire (depending on driving style), on the other hand, the tire builds up high adhesive forces even at low operating temperatures, even when wet. If the prescribed air pressure is constantly observed, it also reduces the latent tendency for the handlebars to flutter in all XJ 600 models. Another alternative is the LaserTec from Metzeler. The driving characteristics do not quite reach the values of the BT 45 on average, but overall it is also seen as a suitable tire. Or the Avon AM26 Roadrider. With a tire certificate from the manufacturer it is possible to drive with a 150 / 70-18 instead of the standard 130 / 70-18 at the rear.

Web links

Yamaha Motor Germany