The Yamaha 'RX' Thread (with pics)

Slick · 29th July 2009, 11:10

@Racoon
Thanks for replying,
When I bought the Rx the mech said that the Piston was spent so I got it changed (Piston was indeed in bad shape)
After a few thousand kms I started gunning her but she wont take off like a rx should. When I gave her for Painting I was driving my friends stock Rx and she was really quick thats when I realised the difference.
The reason I want to change the whole set is because I dont want to spend only on one thing and then if it doesnt work i have to spend again.

I have spent on Wheels, Tyres, Rotor Magnet, Battery, Piston, Clutch, and a lot of small things. Technically whole bike is brand new.
If it helps to diagnos the spark plug tip is always black.
The mileage is also low.

What is a compression test? Where can I get it done?

straight6 · 29th July 2009, 11:18

Check the gearing (sprocket sizes) and then try playing around with the main jet.

Slick · 29th July 2009, 11:44

@straight6
The sprockets and chain are new, sprockets are from Rx135, The jet is old, I'll check the jet. I am going to a new mech on saturday for a checkup on this saturday.

Raccoon · 29th July 2009, 16:22

Quote:

Originally Posted by Slick

@Racoon
Thanks for replying,
When I bought the Rx the mech said that the Piston was spent so I got it changed (Piston was indeed in bad shape)
After a few thousand kms I started gunning her but she wont take off like a rx should. When I gave her for Painting I was driving my friends stock Rx and she was really quick thats when I realised the difference.
The reason I want to change the whole set is because I dont want to spend only on one thing and then if it doesnt work i have to spend again.

I have spent on Wheels, Tyres, Rotor Magnet, Battery, Piston, Clutch, and a lot of small things. Technically whole bike is brand new.
If it helps to diagnos the spark plug tip is always black.
The mileage is also low.

What is a compression test? Where can I get it done?

You can get the test done at any garage where they have the gauge. There many be a problem getting the adaptor though... as the sizes for the old 2 strokers is different. At any rate the authorised Yam service stations should have it.

Seems your engine job hasn't been done right. Have you used genuine parts at least? And genuine oils from sealed bottles?

Which spark plug are you using? And which one is recommended in the manual? Either you are running a colder plug than required or you are running rich. Are you sure your carb is tuned well?

straight6 · 29th July 2009, 16:53

Quote:

Originally Posted by Slick

@straight6
The sprockets and chain are new, sprockets are from Rx135, The jet is old, I'll check the jet. I am going to a new mech on saturday for a checkup on this saturday.

Have you confirmed the sizes? The front should be 16 and rear should be 34.

Slick · 30th July 2009, 10:24

@Raccoon

I'll show the bike to a Yamaha service station, I dont know the plug type as I am not aware.
I have been using Shell 2t Oil, The Piston was from a manufacturer which is rated as better one, I'll write the name in some time,
The quality of parts my mech uses is very good as he asks me and my frined to get the parts so thers no doubt.
@Straight6
I'll confirm the Sizes today itself.

Also just a doubt how much would a slightly cut muffler impact a new piston because I realised much much later that the bike had a cut muffler for louder noise.
Thank You.

Slick · 30th July 2009, 16:21

Spark Plug is Mico
Piston is goetze
Sproket I am not sure but its the one used for Rx135

Raccoon · 30th July 2009, 17:17

^^^ Dude, MICO does not make only one kinda sparky by any chance? You gotta know exactly which one!!

straight6 · 30th July 2009, 19:18

You need the W5BC from Mico.

Slick · 31st July 2009, 11:20

I just asked for a Mico Spark plug for Rx100.
I'll get the W5BC tomorrow. Is there any other Spark plug that might be better and is Shell 2t the right oil.

Raccoon · 31st July 2009, 18:19

Please check which spark plug is recommended in the manual. Most likely it will be W5BC and its fine. You can try NGK also, but first check if you can use R type plug... because NGK no longer sells non R type plugs in India. Don't listen to NGK's recommendation... just check in the manual.

About the oil, suggest you search for the dedicated thread for 2t oils. Almost all available oils are discussed there. As for Shell, are you using VSX2 or the ordinary one?

Slick · 31st July 2009, 23:21

My Ignition system is old Rotor Magnet type, I think I'll go for W5BC, The thread for spark plugs for Shoguns was very Informative also after reading the 2t Oil thread I've decided to check out Jettx.
Thanks a lot, I am going to a yamaha service center tomorrow will let you know about the happenings.

Thanks both of you Straight and racoon.

Raccoon · 1st August 2009, 00:12

Whats special about Jet X? You are in Bombay... you should be able to get something better and more sanely priced like Petronas! Straight would be able to help you with that...

straight6 · 1st August 2009, 00:44

Jettx is very difficult to find here. Ya, I can get Petronas easily.

Which Yamaha service center are you going to?

Raccoon · 1st August 2009, 00:52

Straight, whats the year of manufacturing on your Petronas bottles? Hope its not as ancient as 2005... which is what they tried to sell me here. :(

29th July 2009, 11:10	#136
Slick BHPian Join Date: Nov 2007 Location: Mumbai Posts: 385 Thanked: 622 Times	@Racoon Thanks for replying, When I bought the Rx the mech said that the Piston was spent so I got it changed (Piston was indeed in bad shape) After a few thousand kms I started gunning her but she wont take off like a rx should. When I gave her for Painting I was driving my friends stock Rx and she was really quick thats when I realised the difference. The reason I want to change the whole set is because I dont want to spend only on one thing and then if it doesnt work i have to spend again. I have spent on Wheels, Tyres, Rotor Magnet, Battery, Piston, Clutch, and a lot of small things. Technically whole bike is brand new. If it helps to diagnos the spark plug tip is always black. The mileage is also low. What is a compression test? Where can I get it done?
	() Thanks

29th July 2009, 11:18	#137
straight6 Senior - BHPian Join Date: Oct 2007 Location: Bombay Posts: 2,553 Thanked: 302 Times	Check the gearing (sprocket sizes) and then try playing around with the main jet.
	() Thanks

29th July 2009, 11:44	#138
Slick BHPian Join Date: Nov 2007 Location: Mumbai Posts: 385 Thanked: 622 Times	@straight6 The sprockets and chain are new, sprockets are from Rx135, The jet is old, I'll check the jet. I am going to a new mech on saturday for a checkup on this saturday.
	() Thanks

30th July 2009, 10:24	#141
Slick BHPian Join Date: Nov 2007 Location: Mumbai Posts: 385 Thanked: 622 Times	@Raccoon I'll show the bike to a Yamaha service station, I dont know the plug type as I am not aware. I have been using Shell 2t Oil, The Piston was from a manufacturer which is rated as better one, I'll write the name in some time, The quality of parts my mech uses is very good as he asks me and my frined to get the parts so thers no doubt. @Straight6 I'll confirm the Sizes today itself. Also just a doubt how much would a slightly cut muffler impact a new piston because I realised much much later that the bike had a cut muffler for louder noise. Thank You.
	() Thanks

30th July 2009, 16:21	#142
Slick BHPian Join Date: Nov 2007 Location: Mumbai Posts: 385 Thanked: 622 Times	Spark Plug is Mico Piston is goetze Sproket I am not sure but its the one used for Rx135
	() Thanks

30th July 2009, 17:17	#143
Raccoon Senior - BHPian Join Date: Jan 2008 Location: Poona Posts: 1,851 Thanked: 116 Times	^^^ Dude, MICO does not make only one kinda sparky by any chance? You gotta know exactly which one!!
	() Thanks

30th July 2009, 19:18	#144
straight6 Senior - BHPian Join Date: Oct 2007 Location: Bombay Posts: 2,553 Thanked: 302 Times	You need the W5BC from Mico.
	() Thanks

31st July 2009, 11:20	#145
Slick BHPian Join Date: Nov 2007 Location: Mumbai Posts: 385 Thanked: 622 Times	I just asked for a Mico Spark plug for Rx100. I'll get the W5BC tomorrow. Is there any other Spark plug that might be better and is Shell 2t the right oil.
	() Thanks

31st July 2009, 18:19	#146
Raccoon Senior - BHPian Join Date: Jan 2008 Location: Poona Posts: 1,851 Thanked: 116 Times	Please check which spark plug is recommended in the manual. Most likely it will be W5BC and its fine. You can try NGK also, but first check if you can use R type plug... because NGK no longer sells non R type plugs in India. Don't listen to NGK's recommendation... just check in the manual. About the oil, suggest you search for the dedicated thread for 2t oils. Almost all available oils are discussed there. As for Shell, are you using VSX2 or the ordinary one?
	() Thanks

31st July 2009, 23:21	#147
Slick BHPian Join Date: Nov 2007 Location: Mumbai Posts: 385 Thanked: 622 Times	My Ignition system is old Rotor Magnet type, I think I'll go for W5BC, The thread for spark plugs for Shoguns was very Informative also after reading the 2t Oil thread I've decided to check out Jettx. Thanks a lot, I am going to a yamaha service center tomorrow will let you know about the happenings. Thanks both of you Straight and racoon.
	() Thanks

1st August 2009, 00:12	#148
Raccoon Senior - BHPian Join Date: Jan 2008 Location: Poona Posts: 1,851 Thanked: 116 Times	Whats special about Jet X? You are in Bombay... you should be able to get something better and more sanely priced like Petronas! Straight would be able to help you with that...
	() Thanks

1st August 2009, 00:44	#149
straight6 Senior - BHPian Join Date: Oct 2007 Location: Bombay Posts: 2,553 Thanked: 302 Times	Jettx is very difficult to find here. Ya, I can get Petronas easily. Which Yamaha service center are you going to?
	() Thanks

1st August 2009, 00:52	#150
Raccoon Senior - BHPian Join Date: Jan 2008 Location: Poona Posts: 1,851 Thanked: 116 Times	Straight, whats the year of manufacturing on your Petronas bottles? Hope its not as ancient as 2005... which is what they tried to sell me here. :(
	() Thanks