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Here follows the information i've managed to gather to date:
FZR400RSP
Model Number
The model is actually known as a 2TK but uses the 1WG frame + ancilliaries.
Frame numbers
The standard -> 1987 FZR400 available in Japan only
1WG-000101 TO 035000 MODEL 1WG
The SP version -> 1987 FZR400R available in Japan only
1WG-035101 TO 043000 model 2TK
Thanks to Neil Espie for that information!
Suspension
The rear shock is a remote reservoir version (comes from a TZ / TZR) and has
ajustable preload + rebound ajustment.
Front has preload adjustment only. Standard springs are soft (to say the least)
and runs with 10wt oil.
Neil Smith tells me 'Regarding the fork springs, i fitted progressive suspension
springs, the part no. is 11-1129. If you fit these you dont have to worry about
getting the exact spring rate as the progressive spring takes care of it
automatically,they are a huge improvement everywhere no matter if the track is
smooth our rough. Use 10wt oil with 100mm oil level - If you have problems with
the forks bottoming under brakes just raise oil level to 90mm.'
Wheels
Front is a 17" with a 110/70/17 tyre fitment. Rear is unfortunately an 18" with
140/60/18 tyre fitment. Suitable tyres include Dunlop GPR70, GPR80, Bridgestone
BT090, possibly Metzeler & Pirelli.
Engine
Ahh the interesting part. An oil cooler is fitted as standard, close ratio
gearbox, different pistons, longer con rods, sp cams, CDI, round slide oval
venturi carbs. Final drive is via a 525 chain with sprocket sizes of 15 front
and 41 rear as standard.
A note fron Jurgen Wilsch who used to own one of these models 'I would still use
the FZR400U manual (3bf model) as the bike is the same at most points (even the
valve clearance table stayed the same) as most parts inside the engine are
1WG/2TK parts anyway and the 3bf models have the same internals (1WG parts
inside the engine).'
Frame and Bodywork
Single seat race unit, no rear pegs, aluminuim tank cover (as opposed to plastic
for the other models), Aluminum subframe (instead of steel), larger section
swing arm, 4 pot front calipers.
If you can add any information to this page, please let me know.
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