Forum Project Bike - Kwakka ZXR250

Hey Ya

Well I have been on the prowl for a project for a while now and had narrowed it down to a Kawasaki ZXR250, CBR250RR or an FZR250R, as luck would have it  I sourced a 1991 Kwakka ZXR250C which I put a deposit on today and all going well I will pick it up tomorrow. She has 12xxx kms on the clock, its still rego'ed and Im arranging the RWC, then it will be transferred. I took it for a fang today, runs well and has a nice exhaust note 

I has been on its side, but only a minor rash.

Sorry about the pics, dam iphone quality.

thanks
Chris

 

OKay, Ask and you shall receive

Chris

 

some specs

Specifications
Engine 4-stroke In-line four cylinder, DOHC, Liquid cooled, 16-Valve
Redline range From 18.000 to 20.000 rpm
Displacement 249 cc
Starting Electric
Bore x stroke 49.0 * 33.1 mm
Compression ratio 12.2:1
Carburetion (4) Keihin CVK D30
Ignition TCBI
Spark plug NGK CR9E or ND U27ESR-N
Transmission 6-speed, Constant mesh, Return shift
Clutch Wet, Multi-disc, Manual, Cable-actuated
Frame Perimeter, pressed aluminium
Rake/trail 24 degrees or rake and 85 mm of trail
Suspension, front Inverted telescopic
Suspension, rear Uni-trak, Swing arm
Wheelbase 35.5 in (1.360 mm)
Wheel travel, front 4.7 in (120 mm)
Wheel travel, rear 4.4 in (113 mm)
Tire, front 110/70R17 54H
Tire, rear 140/60R18 64H
Brakes, front Dual disk, Double caliper
Brakes, rear Single disk, Single caliper
Overall length 78.7 in (2000 mm)
Overall width 27.0 in (685 mm)
Overall height 42.9 in (1090 mm)
Ground clearance 5.1 in (141 mm)
Seat height 28.9 in (735 mm)
Weight dry 311 lb (141 kg)
Minimum turning radius 9.5 ft(2.9 m)
Fuel capacity 3.4 US gal (15 L)
Reserve fuel capacity 0.78 US gal (3 L)
Fuel type Min 91 Research / 87 avg. octane unleaded
Oil capacity 2.6 L
Oil type SE or SF class, SAE 10W40

Performance stats
0-60 mph (0-100 km/h) 5.23s
Maximum speed 180-200km/h
Max power 45 hp (33.6 kW) @ 16000 rpm
Max Torque 18.07 ft

 

The Kwakka is finally home after a run from one side of Brisbane to the other in the pooring rain, and Im still smiling from ear to ear, the exhaust note is infectious and the power from the in-line 4 250cc engine is just so different from anything else I have ridden.

Oh Happeee Days !!!

Chris

 

well I took the time today to strip down the fairings, removed the carby's as there is a heisitation between 4000 and 7000 rpm then its go berko, I found that 2 of the 4 gaskets that sit between the airbox and the carby's were missing, now to try and find them and see if that solves it, if not then I strip the carbys down and check as it might just be running rich.

I did a quick run to my bike shop to see if it will pass a RWC, and all it needs is a new rear tyre which is being fitted on Saturday.



Chris

Still smiling 

 

Well, the Kwakka has a serious mis between 4000rpm and 8000rpm, then it revs like it should , while I have been riding it a lower gear to stay out the dead zone, I thought I had better do something baout it. Several forums for ZXR250's  state that this is more than likely caused by the O rings that seal a T piece between each of the carbies may have perished and surprise surprise this O ring is no longer available from Kawasaki.

By chance, I sourced a set of carbies for $50, the seller claimed they were off a low mileage bike and are in top nick, so I bought them. I stripped down the first bowl and was in shock, they were pretty damm average, I kept telling myself, only $50.. lol. Not one jet was free on crud on all 4 carbies, each of the emulsion tubes were sealed shut with crap, I ended up using a very fine guitar string to clear out the blockages in these tubes. . So, armed with a can of Nulon, I set about stripping, cleaning and Reassembling them. In the end they came up pretty good and if I get the chance they will be fitted tomorrow, Im hoping this cures my revving woes

take it easy

Chris

 

[glow=red,2,300]WOO HOO, revving woes are goneski  [/glow]
Carbs were fitted this morning and I took her for a fang, OMG, this is so much better to ride now without the hesitation between 4k and 8k, I can sense there are not quite balanced so IM going to get my mechanic to give them a tune and balance them and I will be sorted. On a low note, 3rd gear , full throttle going onto the freeway, I felt the clutch slipping....

Next project, new clutch fibres

Chris

 

it would appear I have some electrical gremlins to sort out, I strated looking for someone with some ZXR250 parts, I ended finding a complete bike for a bargain, had a 4 hour round trip to pick up, Im quite happy with it, it runs  :Thumbs_up:

Needs a new headlight, fork seals and a front tyre and she should be tops !!!  The previous owner is a Valiant Charger fan, hence the paint job.

Chris

 

thanks for tip, my avatar has been updated to suit

Chris

 

Hmm, what a weekend, the engine in the blue ZXR250 is well and truly shagged, I think I have bent some valves as it wont  crank more than 270 degrees (of 360) , so Phil and I spent last night transplanting the orange ZXR250 motor into the blue one. She now has new plugs, fresh oil and a new air filter and is purring like a kitten.

Looking forward to the ride tomorrow.

Chris