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Yamaha R1 Bike Carbs on a Pinto

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Robmk2
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Re:Yamaha R1 Bike Carbs on a Pinto 2012/09/07 17:09:33 (permalink)
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Manifold setup ordered from ebay pepperperformance as mentioned earlier in the thread, $95GBP shipped with runners to suit the R1... Just gotta weld it up and enjoy now :) I had to contact the bloke and give credit card details over the phone to avoid ebay/VAT fees, but it worked out well... Ill grab some pics when they arrive.
 
Cheers,
 
Rob
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Re:Yamaha R1 Bike Carbs on a Pinto 2012/09/11 17:07:55 (permalink)
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Matt,
 
How decent was the power increase on the dyno with the new carbs?
Also does your heater still work? I live in Canberra :)
 
Cheers,
 
Rob
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Re:Yamaha R1 Bike Carbs on a Pinto 2012/09/11 17:16:29 (permalink)
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Hey Mate,
 
Not 100% sure on the power figures as i wasn;t after power just a proper tune.
 
Compared to the single webber i can say the power comes in from very low revs with no hesitation and pulls hard up to 5k.
 
They sound awesome too.
 
For the heater, as per the pic above, you are just taking the coolant from the block under cylinder 4 as opposed to taking it from the cylinder head.  Heater works great.
 
I read a thread somewhere that this setup promotes better flow.
 
Have you got a pump yet?  I have one from a CBR 900 if you need one.
 
Cheers,
 
Matt
 

 
My 4 door MK II Resto
http://www.classic-ford.org/cfp/tm.aspx?m=37623

RS Owners Club Victoria Committee Member - http://rsocvic.com/
 
 
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Robmk2
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Re:Yamaha R1 Bike Carbs on a Pinto 2012/09/11 17:18:35 (permalink)
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Does the CBR900 pump have the connector for the sensor to turn the pump off?
 
Cheers,
 
Rob
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Matt75
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Re:Yamaha R1 Bike Carbs on a Pinto 2012/09/11 17:21:00 (permalink)
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There is no sensor as such.  They are inertia pumps and it's all internal but yes it will turn off when not required and pump as much fuel as is needed.
 
Matt
 

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My 4 door MK II Resto
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Re:Yamaha R1 Bike Carbs on a Pinto 2012/09/12 05:54:34 (permalink)
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Sounds good Matt, how much are you looking to sell for with postage to Canberra?
 
Cheers,
 
Rpob
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Re:Yamaha R1 Bike Carbs on a Pinto 2012/09/12 08:13:47 (permalink)
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How does $55 inc postage sound?
 
I also have some flouro lined silicone intake runners if you need them too.
 
Matt
post edited by Matt75 - 2012/09/12 10:09:00

 
My 4 door MK II Resto
http://www.classic-ford.org/cfp/tm.aspx?m=37623

RS Owners Club Victoria Committee Member - http://rsocvic.com/
 
 
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Robmk2
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Re:Yamaha R1 Bike Carbs on a Pinto 2012/09/12 16:35:18 (permalink)
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Sounds good Matt, I'll have to talk later in the week, but certainly by Saturday. I'll PM from here...
 
Stopped off today and saw the mechanic and he said drop the carbs off, he will clean them out, drill the main jets to 1.6mm and prepare them for use... He is ready to get the car into running well condition and I will investigate dynoing later on this year.
 
The reason I asked if the fuel pump connects is that there is a 3 pin electronic connector on the carbies... Any idea what that is for?
 
Cheers,
 
Rob
 
 
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Re:Yamaha R1 Bike Carbs on a Pinto 2012/09/12 19:10:59 (permalink)
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Hi Mate, I went 1.8mm on the main jets and my engine is pretty standard so you may want to go a bit bigger than 1.6.
 
My guy installed a bung into the bottom of the extractors so he could screw in a o2 sensor and read the air mixtures and then tune the carbies accordingly.
 
The 3 pin dealie is the TPS (Throttle Position Sensor).  Very handy if you plan to go with an electronic management system in the future like Megajolt, Megasquirt etc.
 
PM me and we can sort out postage and payment.
 
Matt
 

 
My 4 door MK II Resto
http://www.classic-ford.org/cfp/tm.aspx?m=37623

RS Owners Club Victoria Committee Member - http://rsocvic.com/
 
 
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Robmk2
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Re:Yamaha R1 Bike Carbs on a Pinto 2012/09/24 06:16:34 (permalink)
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Hopefully manifold turns up this week, I need to get onto ordering the throttle cable, from SMCKA there is this:
Accelerator cable Escort 2 side draught/injection
$35.00
Which looks similar to the one used in your pic, is that right?

I'm tempted to run the velocity stacks for a bit of time too whilst I save some cash for the pipercross filter setup, but still need to ask where did you get your mini pod filters from?

Cheers,

Rob

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Re:Yamaha R1 Bike Carbs on a Pinto 2012/09/24 10:12:25 (permalink)
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I removed the photo but posted a link to his facebook site to view it.
 
Matt

 
My 4 door MK II Resto
http://www.classic-ford.org/cfp/tm.aspx?m=37623

RS Owners Club Victoria Committee Member - http://rsocvic.com/
 
 
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Re:Yamaha R1 Bike Carbs on a Pinto 2012/09/24 10:20:01 (permalink)
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That's the cable you want.  You can just cut to the length you need.
 
Here are the filters I used - http://www.ebay.com.au/itm/Air-Filter-all-Motorcycle-48mm-Engine-Inlet-/250829620808?pt=AU_Motorcycle_Parts_Accessories&hash=item3a669c4648
 
Cheers,
 
Matt

 
My 4 door MK II Resto
http://www.classic-ford.org/cfp/tm.aspx?m=37623

RS Owners Club Victoria Committee Member - http://rsocvic.com/
 
 
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Robmk2
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Re:Yamaha R1 Bike Carbs on a Pinto 2012/09/24 17:24:33 (permalink)
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Cool as, throttle cable ordered and I grabbed the filters too, $4.55 each from here:
http://www.ebay.com.au/itm/Air-Filter-all-Motorcycle-48mm-Engine-Inlet-/150795882629?pt=AU_Motorcycle_Parts_Accessories&hash=item231c229085
Should be all underway, I will likely weld up the manifold on the bathurst weekend, almost got my hands on a spare pinto head to use as a jig so that should work out well, from there it should be all go :)
Cant wait, and cheers for all your help Matt.
Ill see if  I can get plenty of pics and doco for others who wish to do this mod.
 
Cheers,
 
Rob
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Re:Yamaha R1 Bike Carbs on a Pinto 2012/09/24 17:27:45 (permalink)
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cool,
 
Good luck, take you time and make sure you don;t overheat the metal and warp the manifold.
 
For the choke just get a cheap one off ebay bu you'll need another one of the solderless nipples to locate it onto the carbs.
 
Cheers,
 
Matt

 
My 4 door MK II Resto
http://www.classic-ford.org/cfp/tm.aspx?m=37623

RS Owners Club Victoria Committee Member - http://rsocvic.com/
 
 
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Robmk2
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Re:Yamaha R1 Bike Carbs on a Pinto 2012/09/29 07:14:11 (permalink)
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Well I've got most of everything on the table now for this mod. The flange and runners turned up from UK and this looks like it will be tricky as I have 2 straight runners and 2 S bends. The straights should be placed in the middle and I will need to cut some pretty severe angles on them, but I'll cross that next week when I get to it.
 
One thing I came across when disassembling the carbies was the right one, the spring that holds the needle down through the diaphragm is different to the rest, slightly higher tension than the others. Original obviously lost during the last service. Do you think this will this cause any problems?
 
I'm going to head out today and drill the jets out too, and a question, do you step up gradually through drill sizes or just go for it with the 1.8mm?
 
Cheers,
 
Rob
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