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**Bibhu** · 12-23-2013, 06:23 AM

Re: Random Questions regarding the RX series

Originally posted by Ankitvile View Post

I dont have much money for a bigger carb as per now. Ill do that later. Which big carbs can i go in for anyway??
For the meanwhile will a bigger jet be fine or??
& I have a 4speed cylinder block lying around. Can i plonk it straight in my 5speed.??

Thanks kb. I get the picture. Lots of work.!! Ill get in touch when i get the work started on that.

A good dt or rxk replicarb hardly costs more than 2500rs. A 24mm or 26mm vm replica would do. For abosolute power a vm26 is recomended as it comes with a 200+ size main jet.

Just plonking a bigger main jet wont do much if you are on the stock air filter. In fact it will just make it too rich.

Yes, you can directly put in the 4sp block. But you will loose a cpl of horses as it makes around 12hp. Low end and midrange would improve though.

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**Cleaner** · 12-23-2013, 11:46 PM

Re: Random Questions regarding the RX series

You can get any VM or BS carb from UFS directly, just that minimum order is 5 pieces. So you may do a group buy (The 5 pieces does not have to be of the same model, eg. you can order VM24, VM22, VM20, BS33, BS29 or any combination, just that minimum order is 5 pieces.

**Bibhu** · 12-24-2013, 07:13 AM

Re: Random Questions regarding the RX series

Originally posted by Cleaner View Post

You can get any VM or BS carb from UFS directly, just that minimum order is 5 pieces. So you may do a group buy (The 5 pieces does not have to be of the same model, eg. you can order VM24, VM22, VM20, BS33, BS29 or any combination, just that minimum order is 5 pieces.

If by ufc you mean ucal fuel syatems, then as per to their website they dont manufactute vm series carbs beyond 22mm. And i have never heard of a cv carb being used on a 2 stroke motor. It provides less.power than a conventional carb anyways.

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**nehal77** · 12-24-2013, 05:48 PM

Yamaha rx 100 oil pump & carb repair kit reqd

HI,
I am in need of Service repair kit of OIL PUMP & CARB for my RX100's 1989 & 199 model

Requirement spares for oil pump oil ring (big & small), gasket (pump cover & pump mtg flange,bleeding screw) ,Pulley , bleeding screw , Pulley return spring,
recently got hold of oil oil pump want to repair it & use in my 91 RX as the 89 one has a new one

Carb service kit has packing, float , float pin , gasket .

one micrab carb ava for 2700 new at a spare parts shop here in Bhiwandi , Dist Thane. The price seems too high.

Thanking in Advance

Nehal Nachan

**augmentor** · 12-24-2013, 06:35 PM

Re: Yamaha rx 100 oil pump & carb repair kit reqd

Originally posted by nehal77 View Post

HI,
I am in need of Service repair kit of OIL PUMP & CARB for my RX100's 1989 & 199 model

Requirement spares for oil pump oil ring (big & small), gasket (pump cover & pump mtg flange,bleeding screw) ,Pulley , bleeding screw , Pulley return spring,
recently got hold of oil oil pump want to repair it & use in my 91 RX as the 89 one has a new one

Carb service kit has packing, float , float pin , gasket .

one micrab carb ava for 2700 new at a spare parts shop here in Bhiwandi , Dist Thane. The price seems too high.

Thanking in Advance

Nehal Nachan

Please quote your requirements in right thread Nehal. There is a separate thread for spares.

**moses.thella** · 01-05-2014, 08:42 PM

Clutch Slipping?

Hi, I'm Moses from Hyderabad. My RX135 4spd's clutch started slipping (dont know the exact word) since the last 2 months. The bike is good upto 6.5k RPM (I've installed the RXZ tacho) when I open the throttle, The RPM needle needle moves rapidly towards 8K RPM but the bike doesnt seem to move. I've recently changed the clutch plates and would always take the bike above 6K rpm in the 3rd and 4th gear.

Please help me to sort this out brothers.

**neelesh4** · 01-06-2014, 02:26 PM

Re: Clutch Slipping?

Originally posted by moses.thella View Post

Hi, I'm Moses from Hyderabad. My RX135 4spd's clutch started slipping (dont know the exact word) since the last 2 months. The bike is good upto 6.5k RPM (I've installed the RXZ tacho) when I open the throttle, The RPM needle needle moves rapidly towards 8K RPM but the bike doesnt seem to move. I've recently changed the clutch plates and would always take the bike above 6K rpm in the 3rd and 4th gear.

Please help me to sort this out brothers.

I think this the second time you are facing the same problem again

**Ankitvile** · 01-07-2014, 10:03 AM

Re: Random Questions regarding the RX series

Im planning to install an expansion chamber. Im sourcing it from a guy from Thrissur. He races in the Team 777. The question is this is handmade...and how potent will it be.
Secondly what post installation mods are necessary.?? I have a Rx 5speed.
Posting the pic of the chamber too.

**augmentor** · 01-07-2014, 12:39 PM

Re: Random Questions regarding the RX series

Originally posted by Ankitvile View Post

Im planning to install an expansion chamber. Im sourcing it from a guy from Thrissur. He races in the Team 777. The question is this is handmade...and how potent will it be.
Secondly what post installation mods are necessary.?? I have a Rx 5speed.
Posting the pic of the chamber too.

This one must have been definitely made for the guy based on this existing set-up -
which is - his port geometry, durations, piston, rod etc.

"Handmade" - It all depends who made the pipe. Experience does matters.

Secondly - Ask the guy his existing set-up. Not sure though if this will give the same performance as it is giving now. You may need to double check or you may end up eating pistons !!

**kb100** · 01-07-2014, 02:34 PM

Re: Random Questions regarding the RX series

Originally posted by Ankitvile View Post

Im planning to install an expansion chamber. Im sourcing it from a guy from Thrissur. He races in the Team 777. The question is this is handmade...and how potent will it be.
Secondly what post installation mods are necessary.?? I have a Rx 5speed.
Posting the pic of the chamber too.

how much is he quoting for this , also just ask him whether it can be used for both 4 and 5 speed bikes , if he says yes then walk away , if you are going for it you might need to check weather the kick lever will clear the belly of the chamber

PS: try and contact team carbon , they i believe are better , and they also have a tie up with ron (rdd) and are the only ones to use a simulator for designing

**Ankitvile** · 01-07-2014, 03:41 PM

Re: Random Questions regarding the RX series

Originally posted by augmentor View Post

you may end up eating pistons !!

Thats whats worrying me...and thus thats what eating me up deciding on one good chamber.

Originally posted by kb100 View Post

PS: try and contact team carbon , they i believe are better , and they also have a tie up with ron (rdd) and are the only ones to use a simulator for designing

He is asking 2500rs for this. And okk ill try contacting at Team Carbon. Can they provide me chambers too?? Although if i dont get that...ill settle with a DTW my friend says he has with him.

**augmentor** · 01-07-2014, 03:56 PM

Re: Random Questions regarding the RX series

Originally posted by Ankitvile View Post

Thats whats worrying me...and thus thats what eating me up deciding on one good chamber.

I believe, reduced piston life is not a big surprise on a set-up which uses the exapansion chamber.

Seniors can flow in their thoughts please.

**Bibhu** · 01-07-2014, 07:53 PM

Re: Random Questions regarding the RX series

Originally posted by augmentor View Post

I believe, reduced piston life is not a big surprise on a set-up which uses the exapansion chamber.

Seniors can flow in their thoughts please.

Most of the time an expansion chamber is just plonked in without giving any thought to upjetting and retiming the bike. Atleast rejetting should be done so that the bike doesnt run too lean with chambers. This will help prolong piston life.

Sent from my GT-I9001 using xBhp Connect mobile app

**augmentor** · 01-07-2014, 07:56 PM

Re: Random Questions regarding the RX series

Originally posted by Bibhu View Post

Most of the time an expansion chamber is just plonked in without giving any thought to upjetting and retiming the bike. Atleast rejetting should be done so that the bike doesnt run too lean with chambers. This will help prolong piston life.

Sent from my GT-I9001 using xBhp Connect mobile app

Very much true

**kb100** · 01-07-2014, 09:12 PM

Re: Random Questions regarding the RX series

Originally posted by Ankitvile View Post

Thats whats worrying me...and thus thats what eating me up deciding on one good chamber.

He is asking 2500rs for this. And okk ill try contacting at Team Carbon. Can they provide me chambers too?? Although if i dont get that...ill settle with a DTW my friend says he has with him.

yup they do chambers ,porting , jetting , they pretty much do everything wrt to rx and rd, though i dont have any personal experiences with their services , and they are unlikely to be cheap.
2500 is fair considering the fact that fart cans sold for 4strokes go for 7.5k and above

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