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"Billet"
Cycle X 890cc Piston and Sleeve Kit, 77-78 "F"
Supersport Models
We are proud
and excited to release these Billet Wiseco pistons with
our race proven Cycle X domes. Note: Cylinders will require re-sleeving. These pistons have a bare weight of 173 grams and have a Armor Glide skirt coating, tool steel wrist pins, XA ring sets, .00190 piston to cylinder wall clearance, and larger and deeper valve pockets for big valves and big camshafts.
# F2-890-KIT |
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The Problem: The Fix: Cycle X
Retainers: |
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O-Ring Oil Feed Modification There seems to lengthy discussions about head gasket thickness, o-ring thickness, cylinder block thickness, oil leaks, oil starvation to the camshaft, etc. Anyway, here is what we have been doing for decades. We install dowel pins so the o-rings stay in place. We have seen many circumstances where people have installed oversize o-rings or thinner gaskets and the o-rings worked their way inwards, causing numerous problems. Honda used this procedure on oil lines and other areas. Not sure why they didn't do this to the top of the cylinder.
$49.00 (Parts and labor) |
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F2 Drain Hole Modification As great as Honda is and was...a mistake was made. 4 cylinder studs are exposed through the fins in the head which could allow dirt and road debris to enter the lower end. Honda tried to correct this problem by putting large “O” rings at the bottom of the studs to prevent water and debris from entering the motor.
Here is what we do, drain holes are drilled and honed to accept
brass tubes. Brass tubes are pressed into place and problem
solved.
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F2/F3 camshaft and spring tid-bits of info. This photo simply shows valve to valve measuring location when big camshafts, oversize valves or both are being considered. "Valve to valve"
You will need a minimum of .040 valve to valve clearance.
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Honda CB750 F2/F3 head gasket note: These 77-78 F combustion chambers are oval shaped and regular K model head gaskets that are sold will not work. There are a few standard OEM Honda 77-78 F floating around on eBay and other places. If you want to run a MLS head gasket, you can use a 65mm or bigger bore without a problem.
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Cylinder and head surfacing.
This machining offering is
done for a couple of reasons.
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Upper Case Boring This procedure is needed for big bore applications when large sleeves are installed. $100.00 (Stud removal is extra $)
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Big
Bore Cylinder Work
Includes: Glass bead cylinder, remove sleeves,
surface bottom of block, bore and hone block and install sleeves,
surface top, bore and final hone. $375.00
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Bore and Hone (Budget Version) Includes: Surface top, bore and hone. Glass beading not included. (Can include torque plates for another $60.) 1st
over $150.00
Bore and Hone (Deluxe Version) Includes: Glass bead cylinder, surface top, install (6) Heli-coils with race proven 12mm long coils for added support, bored, beveled and final honed. (Can include torque plates for another $60.) $239.00
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Torque Plate Bore & Honing Torque plate bore and honing procedures will simulate your motor being together. This procedure is used in almost every high level machine shop in the country. $40.00
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Rocker Arm Lightening
Same technique
used in our vintage road racer. $119.00
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Honda CB750 Rocker Arm Refurbishing
Hard welded and ground to perfection. $492.00 (Set of 8)
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Tech tip: Lighter valve trains can be super beneficial for performance increases when "combined" with 5mm valve kits, bee-hive springs, titanium jam nuts and lightened rocker arms. The above photo shows the excess material that can be removed to get the full benefits of lighter weight valve trains. Lightening the rocker arms near the pivot shaft would be a waste of time. Your goal is to lighten as far out as possible.
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Cycle X Global Headquarters
6246 US Hwy 51 South
Hazelhurst, WI 54531
Phone: 715-356-7346
Email: hotrodcyclex@gmail.com