Friday, November 17, 2023

Customization of the Iron Zebra

  • Upon purchase of the Momos/Regal Raptor Bobber 350, I immediately swap the stock bobber handlebars for stock 10” mid-ape hangers originally fitted on its sibling Daytona 350 because I wanted to sit upright and had to pay the cost difference which required longer accelerator and clutch cables. I made the handlebars follow the tilt angle of the front shock absorbers but over time, it tilted slightly backwards allowing me to enjoy an Easy Rider  body tilt.
  • Then it was sent immediately to be airbrush in zebra stripes which included the helmet. I came up with the initial design as the specialist said that was unfamiliar territory. The foundation stripe stickers had to be readjusted on the tank and fenders to accommodate the convex shape of tank and fenders as well to avoid cross-conflicting the stripes. My requirement that the stripes be roughly 2” thick so that they could be well seen about 30’ away.
  • One of the earliest custom job was replacement of the spark plug cover in favour of a chrome alloy version because I was jealous of its siblings which that comes standard. However, I’ve re-installed the original black version because the 350cc engine does not look massive and that chrome cover makes the engine block look even smaller and puny.
  • Next, the stock 0.75mm spark plug cables were replaced with the 1.0mm version imported from UK by my daughter who studied there. This change gave a more humpy engine sound, a smoother engine and no more starting problems on cold mornings.
  • Vandalism struck less than 6 months of ownership where the rear plastic end portion was broken in two, replaced then broken again in two. The airbrush work was intentionally chipped probably with a padlock and had to be given an expensive touch-up. That rear end was disposed and I fitted a side number plate-cum-brake light holder which required a custom bracket. Rear side lights were reattached elsewhere while front side lights were relocated near (with custom bracket) the radiator and aligned height with the rear side lights.
  • Only 6 months old, a grounding cable fitted from engine block to rectifier immediately changed headlight beam from yellowish-white to whitish-white.
  • About that time, the worn soft stock handlebar grip were replaced with a chrome alloy version but even that wore over time and has been replaced with this vintage-looking hard rubber version.
  • The stock electric horn is prone to heavy Malaysian rain and was replaced 3 times. I eventually found air-horns to be more reliable and effective at warning cars of my presence.
  • The stock inner throttle is made of really soft plastic. One fine day, it tore, fortunately, I was 5 mins. away from my mechanic. He said such incidents are common even among super-bikes so advised me to replace them with a more reliable aluminum version. This one has similar dimensions as found on the Yamaha RZX.
  • Side mirrors have a common weakness: unreliable ball joint hinges which easily crack from unwanted knocks against car side mirrors. Another case of wear and tear but this time I replaced the stock chrome mirrors for the black version because chrome is so hard to maintain sparkling clean.
  • Wear and tear of the clear plastic DOT4 viewer required me get a replacement and just like the side mirrors, I opt for the black version.
  • Parking the bobber too close to the closing autogate, it knocked off the footpeg. At that time there was no original replacement so I ended buying a custom version but this chrome aluminum pair only cost slightly more than a single stock foot-peg. I ended buying the toe-pegs too because they were matching and look more glamorous than the stock version.
  • The stock chrome fishtail exhaust had many fine scratches because my bobber was a showroom unit. Many months of polishing still could not remove the deep scratches and as keeping them sparkling clean was troublesome, I gave them coats of black heat resistant paint which initially required coats of clear acrylic plastic to serve as an effective base over the chrome exhaust pipes.

  • Two of the side light amber case cracked so had to be permanent glued while another became faulty through rain leakage. Thus, I invested in black metal casing replacement versions yet to be installed.
  • Recent custom jobs are minor: Here, colour coded silicone hoses with custom spring clips replace stock rubber hoses to add some colour over a fundamentally black engine bay.
  • I invested in 2 switches and a pair of mini-strobe light for  an emergency switch and mini strobe light features yet to install (need the supporting relay units) as I find them important safety items over the minimalist design concept of this hardtail bobber.
  • I always felt the clear plastic stock petrol filter looks and feels cheap so invested in this tough looking aluminum version
  • After 7 years of ownership, the protective clear plastic cover of the brake hoses cracked at a few places so I DIY and removed them with a knife, now they look brand new and expensive.
  • The stock front shock absorbers have a very rough finish so I DIY and gave them a metal sandpaper rub-down
  • I bought this simple volt meter yet to install and plan to attach it outside the battery box case and I feel it is a practical tool to help monitor battery life.
  • Similarly, the minimalist concept was too basic so I invested in 2 switches to serve for am emergency light switch and strobe light switch yet to be installed as I have not bought the respective relays.. 
Other than the above, I am very satisfied with what I’ve done  to my bobber. I feel it is complete and meets my requirements. I expect tyre replacement soon and prefer the 90 series zig-zag tyres as they cover the gap between rear fender and tyre well. Initially I had plans to replace the mid- ape hangers for the classic beach bar version but changed my mind because in Malaysian weather, mid-ape hangers effectively cool my armpits.

MOMOS (Regal Raptor) Bobber 350 Technical Specifications


Tyre
STOCK Front: 90/90 - 21 (rim: 21 x 2.5) - 225kpa/33psi
Rear: 160/80 - 16 CST (rim: 16 x 3.75 BK/CP) - 225kpa/33psi
CUSTOM Front: 90/90-21
CUSTOM Rear:160/90-16/5.0x16

Battery
12N9L-BS NANOGEL G2 [Kyoto] max:2yrs

Fluid
Engine Oil: Semi Syn. 10W40API SG (2L) [Bardahl] max:4K
Brake Fluid: DOT4 (1L) [Bosch] max:2yrs
Radiator Coolant 35000 antirust (1.6L) [TCL Longlife]

Spark Plug
A6RTC (0.6-0.7mm) [NGK] max:12K

Bulb
Headlight: 12V35W/35W [Philips]
Sidelight:12V10W
Brakelight: 12V21/5W
Licence plate: 12V10W
CUSTOM Strobe Light:
Fuse: 15A
Horn: 12V 130dB (airhorn)

Petrol Tank
Main: 8L
Reserve: 2.7L

Chain
STOCK Chain/Sprocket (580-34T)
CUSTOM Chain/Sprocket (530-32T)

Brake Pad
Front Pads (77.3*42.2*7.2)
Rear Pad (with hook) (96.7*42*9)R
Rear Pad (77.3*42*9)L

Dimension (LBH)/Weight (kg)
Bobber 350 (2400*880*1150/161)
Daytona 350 (2335*965*1100/184)
Spyder 350 (2335*965*1100/184)

Carburettor
Sheny Wey (Make)
Twin Carburetor (Type)
PD26JS (Model)
26mm IN 49mm OUT
Made in China

Wednesday, February 15, 2023

Chrome exhaust system gets blacken

  




I was getting tired of polishing the chrome of the exhaust pipe system so decided to spray them with high temperature black paint but before that had to give a few coats of clear plastic acrylic plaint to them which is designed to give the slippery chrome a sticky base for the black paint to stick on.


Potential grounding cable to replace key wiring cables

 


I salvaged from my KIA Spectra, the custom grounding cables I did after it was taken over by someone else. I have a large number of  size L cables and a single meter long size M cable. I plan to replace the stock starter cable with a size L version. However, the wiring gap in the engine block will determine later if I can replace  the stock cable from starter to battery with an L or M version, all to be done under a re-wiring exercise I plan do do in future.  

New tougher side light indicators added

 





Malaysian weather eventually created havoc on the side light indicators. Either the footing of the yellow cover of three of the indicator gave way so I had to glue them to prevent them from falling off or rain water had seeped in via line fracture at the neck of the joint. Thus I invested in 2 pairs of third party side light indicators which had metal casing as against the stock's plastic casing. I will see how the bulbs perform and will invest in yellow bulbs later if I am not too happy with what I have acquired. I choose the classic look version with 2 terminal cables as I believe should deliver a brighter light.

Holes at foot controls and number plate bracket get sandpapered

 




The walls of the foot controls and number plate bracket looked  raw and not as shining as other parts of the chrome finish so I sandpapered them initially with no. 400 and later with no.800 sandpaper to bring them to a respectable shining finish. The job took at least an hour/day for almost a week. I am happy with the results.

Custom battery meter added

 

I got myself this simple digital battery meter seeing on YouTube clips, how effective it was at checking the status of the battery. As I would need to create a custom bracket if it were to be located behind the speedometer, I have decided to make it simple and have it fitted on the external wall of the battery compartment.  


Mini strobe lights added for safety purposes


I recognized the importance of having at least a pair of mini strobe lights for the bobber especially where street lighting is minimal especially along local roads as against highways. These will be located above my present custom front side light indicators and will require a simple custom L-bracket similar to the one customized for the front side light indicators.

Aluminium Internal Throttle added

 






Ever since the stock plastic internal throttle cracked and caused a breakdown along the motorcycle lane, I referred to and was advised by my mechanic to find an aluminium version usually used by more expensive motorcycles. I checked eCommerce and gave the measurement of my stock version to the seller. He told me mine is compatible with a Yamaha RXZ. They come in various colours and I choose blue. The quality of this third party accessory was excellent so very good value for money but requires one to do much eCommerce surfing because prices between sellers vary a lot between RM70-RM150. It was not difficult to fit the new internal throttle and the external kurl pattern gave my hard rubber throttle grip a very good grip thus I need not use any water pipe tape.