RB Designs LLC
Machine Shop Services ~ Motorcycle ~ ATV ~ PWC ~ Small Engine ~ Custom Parts Machining
rb_designs_llc025008.gif rb_designs_llc025007.gif rb_designs_llc025006.gif rb_designs_llc025005.gif rb_designs_llc025004.gif rb_designs_llc025003.gif rb_designs_llc025002.gif
Crank Rebuilding
Contact Us
Payment & Shipping
Machine Shop
Speciality Items
Carb Mods
Head Mods
Cylinder Boring
Yamaha YZ Head Mods
$75.00 = Standard YZ Head Mod 
$80.00 = YZ 250-X Head Mod
Plus Shipping and Handling 
Shipping and Handling; $18.00 alone,
or $5.00 when shipped with carb mod.
Perk up the performance of your Yamaha YZ with our tried and true head modification. This modification is a great enhancer to all of your performance up grades or as a stand alone mod.

Makes fine tuning and jetting more predictable with optimized combustion. This mod will increase torque, snap, ride-ability and helps with fuel mileage too!

Note! You will need to do an existing squish band clearance test when preforming this head mod for optimum performance.
Make sure head is clean and coolant free and remove alignment pins when sending.
Payment and Shipping Instructions
Please feel free to contact us for more information