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**kb100** · 01-22-2011, 11:27 PM

i think you can use rx100 carb as all of them uses vm20 base model carbs the rx 135 uses vm 22 which will be a bit difficult to fix in to the shogun /shaolin manifold.......i thought the cdi is same for all the suzukis

**aargee** · 01-22-2011, 11:28 PM

@KB - What's the size of Shogun's? VM22/20 or anything else?

**yamdoot** · 01-23-2011, 02:12 AM

Originally posted by kb100 View Post

i think you can use rx100 carb as all of them uses vm20 base model carbs the rx 135 uses vm 22 which will be a bit difficult to fix in to the shogun /shaolin manifold.......i thought the cdi is same for all the suzukis

Shogun has a VM20SScarb n i guess Shaolin has a 22.. CDI i believe is different for Shaolin. a 135 carb should actually perform well on her.

**kb100** · 01-23-2011, 05:25 AM

Originally posted by aargee View Post

@KB - What's the size of Shogun's? VM22/20 or anything else?

shogun's carb as specified by yamdoot is a vm20ss which means its venturi dia is 20 mm

**karthikdattag** · 06-06-2011, 12:51 PM

Catcon Exhaust Clarification

Had the opportunity to measure the weight of Big Cat-Con Exhaust & Small Cat-Con Exhaust. Below are the results:

Big Cat-Con : 11Kgs
Small Cat-Con : 5Kgs (Without Bend-Pipe)

Now the gross weight of an RX135 (4 or 5-speed) with big Cat-Con is 108Kgs (as per manual). Negate this 11Kgs out of it,

New Weight without Cat-Con Exhaust = 108 - 11 = 97Kgs

An Expansion Chamber weighs less than 2Kgs. So we take the worst case scenario,

Weight with EC = 97 + 2 = 99Kgs.

Now imagine the BHP to Ton ratio if the barrel is stage 3 ported !!!! Let us assume the barrel to be around 18BHP @ Crank, the calculation goes something like this,

99 Kg = 18BHP
1000 Kg = x BHP (To be calculated)

x = (18/99) x 1000 = 181 BHP / Ton

No wonder such RX135 are capable of doing 0 to 400mts in around 16secs & mind you this is not even a drag setup.

Note: 1 Ton = 1000 Kgs

**jagadeesh.b** · 06-07-2011, 03:29 AM

Isnt 1 ton =100kgs?

**dafc** · 06-07-2011, 08:16 AM

1 quintal is 100kg and 1 ton is 1000kg

**Bluesmoke** · 10-04-2011, 03:05 PM

Originally posted by karthikdattag View Post

Dear All,

I am listing down some basic differences & similarities between 4-speed & 5-speed RX135 (Includes RXG & RX-Z), which will help people to differentiate & learn more about these legendary series once produced in India.

1. Bore Kit (a.k.a Piston-Cylinder Kit / Barrel / Block)

4-Speed - '4TL00' with OEM "ART" STD piston '4Y201', Rating: 12BHP @ 6500RPM
5-Speed - '4TL10' with OEM "ART" STD piston '4Y201', Rating: 14BHP @ 7500RPM

Note1: (which is the displacement) and the RH side (Crank Kicker Side) has the batch of manufacturing, for ex., E1, E2, E3 or E4 (All of them have exactly similar performance, people who swear by performance of E1 being the best, is all crap.) Also if nothing is mentioned or some other type code is mentioned, then the Cylinder is a fake, except for '4Y201' which is the original block of RX-K.

Note2: The Cylinder packing has the following description on it:

1. RX135 4-Speed / RXG / RX-Z 4-Speed: "Cylinder Kit RXG"
2. RX135 5-Speed / RX-Z 5-Speed: "Cylinder Kit 5-Speed"

Note3: Displacement calculation

For Std RX135 being a single cylinder engine, we have the following inputs,

Bore Dia = 58mm
Bore Radius = 58/2 = 29mm
Bore Radius Squared = 841mm2
Stroke Length = 50mm
Pi = 22/7 = 3.142857 (Corrected upto 6 decimals)
Number of Cylinders = 1

Displacement in mm3 = Stroke x Bore Radius Squared x Pi x No. of Cylinder
= 50 x 841 x 3.142857 x 1
= 132157.143

Displacement in cm3 = 132157.143/1000
= 132.157 (Corrected upto 3 decimals)

2. Piston Kit

The OEM Piston kit for Indian RX135 series are from "ART" Japan. For Indian models piston sizes from STD to 0.5mm are available (in steps of 0.25mm). On careful observation of the piston, one can identify if it is original or not. Simply turn the piston upside down & inside we can see "ART" & "4Y201" clearly written. This is the proof for original piston. The piston kit essentially comprises of

Piston (STD/0.25mm/0.5mm)
Piston Rings
Piston Pin
Clips

Note: The pistons are the same for RX135 4-Speed, RX135 5-Speed, RXG, RX-Z.

3. Carburettor Assembly

The OEM Carb assembly for RX135 is Mikuni / UCAL Mikuni. The Carb assembly are different for both 4-Speed & 5-Speed versions.

4-Speed: '4TL 01' with Main Jet = 165 & Pilot Jet = 17.5
5-Speed: '4TL4 20' with Main Jet = 135 & Pilot Jet = 15.0

These are VM type of Carburettors manufactured by Mikuni & both are 22mm. Additonally VM24 & VM26 are used for RX available in South-East Asian countries (Like Singapore, Indonesia & Malaysia) and in South American Countries (Like Peru, Argentina & Brazil). The details of these are given below:

VM24: '2YA 00' with Main Jet = 145 & Pilot Jet = 20.0
VM26: '55K 00D' with Main Jet = 210 & Pilot Jet = 22.5

These carbs (VM24 & VM26) are direct fit to Indian RX135s with some minor jetting changes required based on the Power output of the engine.

Note: The type code is mentioned just above the 2-T oil Inlet in the carb, with that the originality can be confirmed.

4. Head Assembly

The heads are also different for 4-speed & 5-speed. The type code is mentioned below:

RX135 4-Speed: '4TL5' written on inner side (Top) of Head (For OE fitting Catalytic Converter type)
RX135 4-Speed / RXG: '4TL00' written on inner side (Top) of Head (For OE fitting Chrome Silencer)
RX135 5-Speed: '09L' written on inner side of Head

5. Clutch Bell Assembly with Primary drive

The clutch bell assembly are the same for 4-speed & 5-speed RX135 (Including the number of Clutch plates), but it is different for RX-G. Below are the differences mentioned:

RX135/RX-Z 4-Speed/5-Speed: Main Bell = 74 Teeth
Primary Drive = 19 Teeth

RX-G : Main Bell = 71 Teeth
Primary Drive = 22 Teeth

6. Chain Sproket

The sproket (Front & Rear) are all different for entire RX series. Detailed info given below:

4-Speed: 16T / 34T
5-Speed: 15T / 38T
RX-G : 15T / 37T

7. Gear Box
The Gearbox are obviously different for 4-speed & 5-speed. Details below:

4-Speed:
1st = 35/11 = 3.182
2nd = 30/15 = 2.000
3rd = 26/19 = 1.368
4th = 23/23 = 1.000

5-Speed:
1st = 35/11 = 3.182
2nd = 30/15 = 2.000
3rd = 26/19 = 1.368
4th= 24/22 = 1.091
5th = 22/24 = 0.917

8. Engine

The engine may be classifed based on Top End (Included Cylinder+Piston & Head) and Bottom End (Includes Clutch Assembly, CrankShaft, Engine Bearings, Crank Kicker, Engine Cases, Clutch/GB Covers, Ignition coil, GearBox Assembly etc as major components). Most of these items are already covered in points 1 to 7 above.

Note1: The RX135 4-Speed & RX-Z 4-Speed share the same Engine, likewise RX135 5-Speed & RX-Z 5-Speed share the same Engine.

Note2: The CrankShaft Assembly is the same for RX135, RX-G, RX135 5-Speed & RX-Z.

Note3: We can identify looking at the Engine number if the Bike was a 4-Speed version or a 5-Speed verion. Check the details below:

1. RX135 (With Chrome Silencer as OE fitting): 1L5 XXXXXX
2. RX135 (With Catalytic Silencer as OE fitting): 4TL XXXXXX
3. RX135 5-Speed: 1L7 XXXXXX

P.S: The RX135 5-Speed never came with OE fitted Chrome silencer, the OE fit was the Big Hot-Tube type catalytic converter Exhaust.

Any comments/additions are most welcome. Hope you all enjoyed this read.

I request all senior members to help make this thread sticky, so that all the RX enthusiasts are benifitted by this & it would avoid new joinees to ask unwanted questions. I sincerly request the moderator to look into this.

Thank you.

-Karthik..

Excellent infor....keeping this stuff in mind for my RX135 rebuild!

**karthikdattag** · 10-04-2011, 03:18 PM

Originally posted by Bluesmoke View Post

Excellent infor....keeping this stuff in mind for my RX135 rebuild!

Thanks a lot. I try my best to share all the info possible.

**SriramEfunds** · 11-22-2011, 05:54 AM

I'm trying to understand:-
1. What's the different between Reed valve assembly between RX100 and RX135 apart from part number. Is that 135 is slightly bigger?

2. Has anyone tried RX/RXG silencer assembly on to RX100 while restoration process and was there a world of difference in the exhaust note from the original pipes that came in?

3. CDI and Ignition coil units - are they functionally different between 100 and 135?

4. Coil plate-flywheel assembly - any different between 100 and 135.

5. Oil pump - what's the difference between 100 and 135(4s initial batch)?

Please educate me or rather say 'Master, teach me!'

**kb100** · 11-22-2011, 07:54 AM

Originally posted by SriramEfunds View Post

I'm trying to understand:-
1. What's the different between Reed valve assembly between RX100 and RX135 apart from part number. Is that 135 is slightly bigger?

2. Has anyone tried RX/RXG silencer assembly on to RX100 while restoration process and was there a world of difference in the exhaust note from the original pipes that came in?

3. CDI and Ignition coil units - are they functionally different between 100 and 135?

4. Coil plate-flywheel assembly - any different between 100 and 135.

5. Oil pump - what's the difference between 100 and 135(4s initial batch)?

Please educate me or rather say 'Master, teach me!'

the flywheel of the rx 135 is heavier compared to the rx100 flywheel

**karthikdattag** · 11-22-2011, 11:06 AM

Originally posted by SriramEfunds View Post

I'm trying to understand:-
1. What's the different between Reed valve assembly between RX100 and RX135 apart from part number. Is that 135 is slightly bigger?.... Same, even though part numbers are different.

2. Has anyone tried RX/RXG silencer assembly on to RX100 while restoration process and was there a world of difference in the exhaust note from the original pipes that came in?........ He he he. I knew you would ask this. How about a Tiger with household Kitty (pussy) roar?

3. CDI and Ignition coil units - are they functionally different between 100 and 135?........ CDI is different for 100, 135 4-speed & 135 5-speed.

4. Coil plate-flywheel assembly - any different between 100 and 135......... Complete ignition itself is different.

5. Oil pump - what's the difference between 100 and 135(4s initial batch)?.......... They are the same, i.e the big one.

Please educate me or rather say 'Master, teach me!'........ You still want me to call you 'MASTER' ???

Answers in bold.

**SriramEfunds** · 11-22-2011, 04:33 PM

@Karthik:- Thanks.
1. The reason is 4S part number starts with 2YA for 135 and 36L for 100. Thanks for the clarification.
2. Lol... now, define your examples

3. Ok. Can I use 135 assembly on a 100?
4. Ok. Can I use 135 assembly on a 100?
5. that's what I thought too, just checked to make sure my understanding is correct.

Oh...those were my words ' Master, Teach me!'.

**sixspeedtwin** · 11-22-2011, 05:36 PM

Originally posted by karthikdattag View Post

Answers in bold.

Originally posted by SriramEfunds View Post

@Karthik:- Thanks.
1. The reason is 4S part number starts with 2YA for 135 and 36L for 100. Thanks for the clarification.
2. Lol... now, define your examples

3. Ok. Can I use 135 assembly on a 100?
4. Ok. Can I use 135 assembly on a 100?
5. that's what I thought too, just checked to make sure my understanding is correct.

Oh...those were my words ' Master, Teach me!'.

Originally posted by SriramEfunds View Post

@Karthik:- Thanks.
1. The reason is 4S part number starts with 2YA for 135 and 36L for 100. Thanks for the clarification.
Oh...those were my words ' Master, Teach me!'.

The Items HAVE to be different if the part numbers are different.
Yamaha will not take the trouble of giving different part numbers to the same item.

2 statements to support my claim:

- Anyone who has seen the parts catalog for the RX100 / RX135 / RXZ can see that there are a large number of items that still carry a 1A1 prefix (from the RD350). So logistically it is easier to maintain an inventory

- As I discussed with u the other day, how Yamaha is now Superseding part numbers for similar items to cut down on this very Logistical nightmare ...

Also remember, that in many cases items like the Oil Pump, etc are different for the bikes after Chassis number 005466 (RXZ 4-speed specific)

So in a nutshell:

Why will Yamaha take the trouble of giving different part numbers, and different sort box numbers and different prices, if the part are the same?!!!

Case in point:

I have an RX100 Parts catalog from 1985 and I have an RXG catalog from 1997 even there the oil pump has different part numbers.

Even if both are visually same, the parts are definitely different ...

For Eg.

In the RXG and the RXZ (before 05466) have a different Gear Drive and Hose for the oil pump than the RX100.

Post 05466, the the gear drive and the hose are the same as RX100 but the worm shaft is different ....

Hope I could clarify this

If further information is needed, I can dig deeper and let u guys know ...

**SriramEfunds** · 11-22-2011, 06:10 PM

Thank you alok for detailed explanation.

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Differences & Similarities between 135cc RX series

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