Trail Bikes 88cc Big Bore Kit + Race Head V2 + Mikuni VM26 Carb Kit (12 volt) - Z50 / XR50 / CRF50 / XR70 / CRF70
Trailbikes, Trail Bike, Trail, Bikes, v2 race head, crf50 big bore kit, xr big bore, xr50, Roller rocker kit, VM26 carb, vm26 Carb Kit , Fast50s
Z50 / XR50 / CRF50 / XR70 / CRF70
Z50 / XR50 / CRF50 / XR70 / CRF70 and other pit-bikes with Mikuni VM26 Carburetor
- Roller Rocker Arms
- 28.5mm intake Valve with 5mm Valve Stem
- 23.5mm Exhaust Valve with 5mm Valve Stem
- 23mm Exhaust port
- Matching High Compression Piston
- Head kits include all hardware
- 52mm piston with rings, pin, & clips.
- 52mm Aluminum Cylinder
- High performance race camshaft (for the Race Head only)
- Head gasket kit.
- Mikuni VM26 Carb kit
- 26mm Intake port FF0433TB
- Clutch tool TBW1013
- High volume oil pump (Either)-12 volt (FF0226TB) or 6 volt for 81' or earlier models us (FF0225TB) -
- Oil cooler kit FF9073TB
It will save lots of time and effort if the oil pump is installed while installing the bore kit (requires cylinder removal).
Race fuel not need but would work best.. At a minimum we recommend using premium fuel
If you have any questions please call one of our knowledgeable and friendly techs at 833-327-8507
-V2 Head bolt kit 0755
-Camshaft V2 0752
-V2 Head Cover Set 0754
-Gasket Set 0859
-Throttle Cable 0301
-Intake Kit 0433
-VM26 Carburetor 0399
-Air Filter 0413
- Item Requires Shipping
- 8.0 lbs.
Total Reviews (1)
Reviewed by: Craig10/03/2017 04:27PM
Product ownership: A year or longer
Purchased from: Fast50s
It was a night and day difference after I installed this on my 1994 Z50R kart track race bike. For a 88cc bike this thing screams! Only issue I had is I didn't like the VM26 carb. I ended up buying the 20mm carb kit Fast50's sells, and it fixed any of the issues I was having with bogging. This is a tremendous power upgrades! Revs to the moon and back!
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