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Kenny McNamee's MC21 Tady Okada Replica

Congratulations to Kenny McNamee from Scotland, the owner of Customer Bike of the Month, April 2017. Kenny and his nephew Jamie have been loyal TYGA customers for over 13 years and are self-confessed NSR250 fanatics. Kenny and Jamie have a collection of four NSR250’s including TT-F3 MC21 & MC18 race bikes which are currently undergoing ground up restoration. Read on for Jamie’s comprehensive write up on their Tady Okada Replica which was the first in their collection and was purchased in 2002 as a “spare or repairs” wreck:-)   

“Hi Matt,

The Tady Okada replica road bike was our first NSR and was imported to the UK by Performance Motorcycles in Darwen in 2002. It was around 80% complete and was in a dire state of disrepair with front end damage to the forks, front wheel, all bodywork, clocks, pipes and evidence of a hard life being imposed upon it by it’s previous owner who had fitted an alternative top yoke with upright handle bars.

After strip down, we cleaned and assessed every part and anything showing signs of wear, corrosion or damage was consigned to the bin. When the engine was apart the cylinders where matched to the crank cases, some mild porting work was carried out, (mainly to the boost port and exhaust port) the RC valves were modified to straighten & open up the cross sectional area of the exhaust port and a general refreshing of bearings, seals and the top end was performed. The chassis was in remarkably good condition after cleaning, probably due to it never having being subjected to the British winter road salt as it had never been registered in the UK.

 

With the engine mounted back in the chassis, a straight set of forks and a replacement front wheel were fitted, we then replaced every fastener with either titanium, stainless steel, or at very least, brand new OEM Honda parts leaving us with a corrosion free rolling chassis and a freshly rebuilt engine in a sensible state of tune for road use. We fitted HRC reed block stuffers, reed petals, jet kit and a set of HRC TT-F3 pipes (TYGA supplied J) which we sent off to our local platers to be dull nickel plated. At first we bolted the bike together with a set of standard body panels which received a quick rattle can paint job to make it presentable for road testing and to allow us to get on with registering the bike and setting up the carburation.

We modified the air box lid, wire spliced the gearbox position sensor to remove the restriction to the ignition advance and jetted on the side of caution initially for its first outing. After performing plenty plug chops and jet changes we had it carburetting perfectly off the needle and the mains. My Uncle used the bike for a year with this set up and found it to be a total revelation in terms of handling and performance compared to the 2 strokes he had owned in the past. He was very happy with the performance but conscious that our efforts on the chassis and engine were being let down by less than perfect standard body panels.

We wanted to bring the styling up to date and upgrade the suspension and brakes so an NX5 Honda RS250 front end was sourced and the triple clamps sent to TYGA for modification. A set of VTR1000 firestorm disks had the correct off set, bolt pattern, pitch centre and disk diameter to avoid any messing around with spacers or caliper mountings. When we bolted this lot together it looked like a factory fit and Matt’s CNC machined concentric steering lock adjusters are one of the many neat detail touches that make this bike so special to us. TYGA's ever growing list of project bikes at the time inspired us to fit the GP250 body kit and as everyone was opting for Rothmans or Repsol paint schemes we decided on HRC/Tady Okada colours which were expertly applied by Bike Paints in Cupar.


TYGA PERFORMANCE PARTS INCLUDE:


TYGA GP250 FAIRING KIT (One of the first produced)

TYGA GP250 SEAT & SUB-FRAME KIT (Road Version)

TYGA GP250 MINI HEADLIGHT & MIRRORS

TYGA REAR SETS

TYGA CARBON HUGGER

TYGA CARBON/ KEVLAR STINGERS

TYGA LYTE FRONT FAIRING MOUNT AND SCREEN BRACE

TYGA LYTE WHEEL BEARING SPACERS

TYGA MODIFIED RS250 YOKES / FRONT END CONVERSION

TYGA OFF-SET WOODRUFF KEY

TYGA EXHAUST MANIFOLDS

OTHER TYGA SUPPLIED PARTS INCLUDE…

HRC JET KIT

HRC REEDS / STUFFER KIT

HRC TT-F3 PIPES

HRC CYLINDER HEAD CONVERSION

VARIOUS OEM HONDA REBUILD PARTS & SECOND HAND SPARES

The bulk of the restoration happened over a 2 year period with countless weekends of elbow grease, hard graft and skint knuckles but our wee bike continues to evolve 13 years on as TYGA continue to produce more aftermarket parts for the NSR250. We have TYGA to thank for many of the new and second hands parts required to build the bike you see here and we are extremely proud of our efforts but are indebted to TYGA for the technical support provided over the years.

With the spares that we accumulated building the Tady Okada replica we found ourselves with enough parts to justify building another NSR and this is how our MC21/18 R5K Hybrid Racer came to exist…before moving on to project TT-F3 MC21…and project TT-F3 MC18, which are currently undergoing ground up restoration. More on them later!”

Thanks again for all of TYGA’s assistance over the years!

Jamie Johnstone & Kenny McNamee

 

Silencer, Carbon/Kevlar, Two Stroke, Assy.

Silencer, Carbon/Kevlar, Two Stroke, Assy.

This high quality lightweight silencer ( 0.47kg) is made from CNC machined end caps joined by a carbon/Kevlar fiber…

Model
EXSL-0004
Quantity
33
Collar, Manifold, NSR250

Collar, Manifold, NSR250

This is a replacement part.  When ordering chambers, this item is included in the price and you do not need…

Model
EXMN-0003
Quantity
50
Kit, Fairing Set, (Street), NSR250 GP2010

Kit, Fairing Set, (Street), NSR250 GP2010

This set of bodywork comprises of the parts below which are…

Model
BPFS-0094
Quantity
4
Kit, Seat Set, budget (street), MC21 GP Race

Kit, Seat Set, budget (street), MC21 GP Race

This set of bodywork is designed to replace the stock seat cowling with the street version of our GP Race…

Model
BPFS-0060
Quantity
4
Racing Step Kit, MC21

Racing Step Kit, MC21

TYGA Performance racing step kit assembly. Designed in-house by TYGA Performance using AutoCAD software, these CNC machine- made step…

Model
STAA-0002A
Quantity
10
GP/Spark Mirrors (pair)

GP/Spark Mirrors (pair)

Stylish simple lightweight mirrors to mount on bodywork. Ideal for panels which don't have any mounting points for…

Model
TYMR-0001
Quantity
100+
Headlight, GP250, Assy.

Headlight, GP250, Assy.

A small Lightweight unit to discreetly mount on the fairing without spoiling the racing look Compatible Parts: Tyga Upper Cowling BPFU-0005…

Model
BPLT-0004
Quantity
18
Upper Stay, MC18/MC21/MC28, GP Type, Assy.

Upper Stay, MC18/MC21/MC28, GP Type, Assy.

Lightweight GP style upper stay to use on the GP style fairing Compatible Parts Upper cowlings, BPFU-0004, BPFU-0005, BPFU-0015 and…

Model
TYLY-0001
Quantity
10
Wheel, Front. Aluminium Spacer kit

Wheel, Front. Aluminium Spacer kit

Replace the heavy steel front wheel spacers and wheel bearing distance spacer with these lightweight 6061-T6 aluminium spacers. At 35%…

Model
TPER-0024
Quantity
9
Wheel, Rear. Aluminium Spacer kit

Wheel, Rear. Aluminium Spacer kit

Replace the heavy steel rear wheel spacers and wheel bearing distance spacer with these lightweight 6061-T6 aluminium spacers. Lighter weight…

Model
TPER-0039
Quantity
14
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