Yamaha ATV Services

Yamaha ATV Services

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Cylinder Head Machine Work: $99 ~ $195

Cylinder Head Recondition : We soda blast clean the cylinder head before inspection. Then we surface the gasket surface areas to ensure that the areas are flat before machining. Then the cylinder head is machine cut 5 angle seat profile designed to increase air-flow and port velocity on a machine center also ensure valve seat profile consistency. Then the cylinder head is hand washed and painted to ensure longevity. Then assembled including cam install and valve shim set up (parts not included) and pressure tested.

$99 4-valve head $129 5-valve head *parts not included

Performance Cylinder Head Valve Job : We soda blast clean the cylinder head before inspection. Then we surface the gasket surface areas to ensure that the areas are flat before machining. Then the cylinder head is machine cut 5 angle seat profile designed to increase air-flow and port velocity on a machine center also ensure valve seat profile consistency. We blend the seat to the port runners to increase velocity. Then the cylinder head is hand washed and painted to ensure longevity. Then assembled including cam install and valve shim set up (parts not included) and pressure tested.

$165 4-valve head $195 5-valve head *parts not included

Complete Race Head Set up : We soda blast clean the cylinder head before inspection. Then we surface the gasket surface areas to ensure that the areas are flat before machining. The the valve seats are replaced with beryllium copper seats machine cut 5 angle seat profile designed to increase air-flow and port velocity. We match the seats to port runners to increase velocity. Also included in race set up the head is ported to your specific racing needs. Then the cylinder head is hand washed and painted to ensure longevity. Then assembled including cam install and valve shim set up (with Titanium Valves, springs kit) and pressure tested.

$1350 4-valve head $1550 5-valve head *parts included


Other Service Available:
1. Cut Valve Seats $40 each bare head includes clean and inspection.
2. +1 mm valve angle radius $50 per valve
3. Valve Seat Replacement $100 1st one then $60 each additional
4. Valve Guide Replacement $40 1st one then $20 each additional
5. Cylinder Head Porting $200 with any valve job.
6. Cylinder Bore and recondition.


Yamaha YFZ450

Complete Motor Rebuild: $1499

Disassemble complete engine, clean, inspect and replace parts that are needed. This includes clutch, transmission, engine bearings, crankshaft, cylinder, cylinder head, valve guides, valve seats, cam, chain, oil pump, water pump and check everything for abnormal wear. We reassemble using new gaskets, main bearings and rebuild or replace crank, we ball hone and deglaze your cylinder and install new piston, rings, pin and clips. We also recondition the cylinder head with 5 angle machine seat profile, new intake valves, seals and cam chain.

YFZ450 Cylinders and Top End Kits :

1. Replacement cylinder $200
2. Big Bore Kit starting at $469
3. Piston Kit (std) with top end gasket kit starting at $205
4. Performance pistons with gaskets starting at $270


Yamaha YFM660R Raptor

Complete Motor Rebuild: $1399

Disassemble complete engine, clean, inspect and replace parts that are needed. This includes clutch, transmission, engine bearings, crankshaft, cylinder, cylinder head, valve guides, valve seats, cam, chain, oil pump, water pump and check everything for abnormal wear. We reassemble using new gaskets, main bearings and rebuild or replace crank, we bore cylinder and install new piston, rings, pin and clips. We also recondition the cylinder head with 5 angle machine seat profile, new intake valves, seals and cam chain.

Cylinders and Top End Kits :

1. Resleeve $175 includes bore to piston size (parts not included)
2. Piston Kit with gasket kit starting at $120
3. Performance piston kit with gaskets starting at $200
4. Big Bore kit with gaskets starting at $395 (this is to resleeve your cylinder)