These head packages feature a specialized intake manifold that increases airflow volume and quality when a restrictor plate must be used. Tremendous gains in power and drivability are being realized with these intakes. Take your Jr. YF200 to the next level!

Available for Jr. I (14mm), Jr. II (16mm) , and Jr. III (18mm)

Belmit YF2.3RPS CNC porting package includes:

• New YF-200 R1 head

• Intake and exhaust port fully CNC ported along with chamber work

• CNC ported intake manifold specific to each plate size machined from solid 6061

• Multi-angle hi-flow valve job

• Custom made max-size intake and exhaust valves

• High strength PSI springs

• Lightweight aluminum retainers with locks

F200 class legal

Racer price $950.00

New Low Price
$599.00

Note: CNC ported Manifolds are not sold separately, you must purchase complete cylinder head package. The only exception is if you have a Belmit Jr. F200 head and wish to move up to Sr. class send your head back to us and we will change it over to the Sr. manifold for $85.00 plus S&H.

New Low Price
$599.00

BELMIT DEVELOPMENT brings you the first 100% CNC ported cylinder head for the Yamaha YF200-R1.

We have seen the other YF-200 heads out there and we are confident that you will be very impressed with the quality and performance of our heads. We don't blow smoke or make you believe in voodoo porting magic we only provide the best possible straight forward porting and seat work available.

Features:

• All heads are 100% CNC ported
• Computer generated port shapes provide extreme flow.
• Excellent wet flow properties.
• Consistent ports time after time.
• Most advanced ports in karting bar-none.
• Superior craftsmanship and attention to detail

Belmit YF2.3CNC porting package includes:

• New YF-200 R1 head
• Intake and exhaust port fully CNC ported along with chamber work.
• Multi angle hi-flow valve job
• Custom made max-size intake and exhaust valves
• High strength PSI springs
• Light weight aluminum retainers w/locks
• CNC ported intake manifold matched precisely to intake runner and machined from solid 6061-T6511 Aluminum

Note: This port does break through the thin cross section area, however it is legal to repair the area with a small epoxy patch (done at Belmit). Also, large seats are not installed, they are not needed because the max valve size fits comfortably in the stock seats. Don't be fooled, a bigger seat O.D. provides no performance advantage. The stock seats are much less likely to fall out then aftermarket seats, which may be installed improperly. We do increase the I.D. of the stock seat to match the larger valves.

This package is F200 class legal

Racer Price: $950.00
$599.00

Belmit YF2.2CNC porting package includes:

• New YF-200 R1 head
• Ports welded up
• Intake and exhaust fully CNC ported along with chamber work
•  Multi angle hi-flow valve job
• Custom made intake and exhaust valves
• Larger seats may be installed
• High strength springs
• Light weight aluminum retainers w/locks
• CNC ported intake manifold matched precisely to intake runner and machined from solid 6061-T6511 Aluminum

Note: This port is much larger than the YF2.1 and is intended for modified or open engines. The head needs to be welded to prevent the port breaking through.

This head package is NOT F200 class legal!

Price: Call
 

Dealer Inquiries Welcome

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