Re: Yamaha YZF-R15 version 2.0

Yeah, no need to spend on an another set of the hugger!

Re: Yamaha YZF-R15 version 2.0

^^ yeah i just remove the whole hugger and expose the rear fully. looks phenomenal and pumps that little extra adrenaline enthu in you to go for a ripping ride in case you were feeling a little lazy or lacking in energy :P

Re: Yamaha YZF-R15 version 2.0

How did you come to know the injector is clogged?? Any signs to look for?
Mines 31k and doing good..


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Re: Yamaha YZF-R15 version 2.0

Once on a ride to a place some 400 kms from bbsr I filled up at a near dilapidated petrol bunk 3 times and returned back then had to leave outstation leaving the bike unused for 15 days and on returning the bike refused to keep idle on a cold engine I had to constantly give throttle.it refused to rev freely the engine heated up easily Also the mileage was above 50 (generally it is 40-45)and the plug showed a horrible lean reading checked the co setting with my fid and increased it a notch still to no avail then decided on dismantling the pump and the injector and throttle body assembly. Initially when jumped the injector only 2 holes were spraying and the rest didn't spray at all and the solenoid operation sound was a bit feeble so went on lightly tapping the injector on the floor and jumping it and spraying the brake cleaner after 5 6 syringe full of brake cleaner was passed through the injector the holes started spraying and the solenoid action sound was a bit louder then it became all clear and the spray was uniform in all the holes.
This happened once when my bike was 28000 km old and another time when it was 51000 kms old
CHEERS

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Re: Yamaha YZF-R15 version 2.0

Thanks brother... My bikes engine also feels tight to rev and has mileage drop.. I cleaned the injector for the first time last night.. Going to see what impact it has done..:thumbup:

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Re: Yamaha YZF-R15 version 2.0

Dude. As far as I know and have been told by a mechanic in Hyderabad, Daytona kits are not available for V2. They are only available for V1.
You will see marginal to no improvement on installing a Daytona kit on a V2.

Re: Yamaha YZF-R15 version 2.0

Where did you get this information from? There is virtually nothing different between V1 & V2 engines (other than revised throttle cable). Why would the Daytona kit not fit and why would it not give the same results if the engine setup is the same?


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Re: Yamaha YZF-R15 version 2.0

I got this information from an experienced Hyderabad SVC mechanic who has a R15 V1 and a Daytona kit installed.
Yamaha does not make Daytona kit for the V2. He has not installed the kit on any V2 so far.
I am not sure if the engines are exactly the same owing to different power generated but the chain sprockets are certainly different. The V1 is tilted towards top speed while the V2 towards acceleration.
And there is no warranty on the Daytona kit although the warranty on your bike remains as it is.

Re: Yamaha YZF-R15 version 2.0

Your experienced mechanic is not so experienced after all. Just because he has not fitted the kit on a V2 does not mean that it is not for V2. Basically, the kit consist of a revised camshaft, a free flow exhaust and a ECU with revised fuel maps (to compensate for the revised cam timing & increased flow of exhaust) and rev limiter removed. All these parts are plug and play for V1 & V2. The results will be the same as far as power output is concerned on both the versions.

On the warranty part, again your information is wrong. Please read the terms of the warranty carefully instead of depending on the hearsay of a 'experienced' mechanic. Any change made to the stock set up will void the warranty of your bike. Strictly speaking the Daytona kit is not street legal and is for close circuit racing.


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Re: Yamaha YZF-R15 version 2.0

Well, the Daytona is not as simple as plug and play! And the ECU in V1 is different from V2. The V2 is already performing to the top of its abilities with the 150cc engine and the revamped ECU.
Haven't heard of a V2 with Daytona so far and you can enquire with Yamaha, if need be, on whether they make Daytona for the V2 and the warranty.
I am pretty sure that what the mechanic said was correct and so moved away from the Daytona. Why would you spend 60k and end up with marginal to no increase in power output and a noisier bike.

Re: Yamaha YZF-R15 version 2.0

well the fact that the yamaha R15 one-make championship features daytona fitted R15v2 for the last 3 years is a proof of the fact that daytona can indeed be installed in the v2 according to yamaha racing and it must give some tangible differences/improvements over the stock v2 for actual *racing* conditions.

also, i have seen a couple of daytona fitted R15v2's on the roads (not in allahabad of course :P).

Re: Yamaha YZF-R15 version 2.0

Yeah. You are correct. Yamaha does provide Daytona modified V2 for the Championships. So Daytona does fit to a V2 (need to take it to the 'experienced' mechanic)
Tangible benefits on the street with the mod. I am not sure.

Re: Yamaha YZF-R15 version 2.0

yeah, the difference is not huge overall for street riding, not worth additional 60k (or was it 35k?) on a bike of 130k anyways...it makes some differences over racing conditions surely where small things matter such as slightly higher HP and slightly different/better ecu and power delivery (??) etc

Re: Yamaha YZF-R15 version 2.0

Please don't be offended by what I am about to say; you really need to do your homework.

As far as the opinion of the 'experienced' mechanic, let me ask you; for any illness do consult a compounder instead of doctor. The job of mechanic is to service your bike. He has ZERO knowledge of performance tuning.

As far as the performance of the Daytona kit is concerned, here are some numbers:

1. 0 to 100 kmph (stock setup) - 14.5 to 15 seconds.
2. 0 to 100 kmph (Daytona setup) - 12 to 12.5 seconds.
3. Top speed (stock setup) - 145 kmph.
4. Top speed (Daytona setup) - 150 kmph.

Before anyone argues about their stock bikes having clocked higher speeds than indicated above, please note that these speeds are set under certain conditions that can change dramatically. That not withstanding, the top speed of a Daytona kitted bike with race ECU will be higher than stock as it has the ability to rev to 12,000 rpm. Stock rev limiter is restricted to 10,500 rpm.

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Re: Yamaha YZF-R15 version 2.0

I got the injector cleaned in the regular service today. The engine feels quicker to respond which means they have actually done the job rather than just billing for it. It cost me Rs250. Aren't they supposed to clean the injector as a part of the paid service itself?

Also, when I collected my bike, I noticed that this part of the fairing(see photo) had gone from shiny black to faded black, almost like the shade of matte black scheme. Got it cleaned but it just took away a bit of edge of the discoloration. Closer inspection revealed two trickles. What could it be?