Air filter questions - SV650.org

03-01-06, 10:29 AM

I need to replace the air filter on my SV ('02 curvy)
I don't know wether to replace with a standard Suzuki (or pattern) or go for a performance one.
Will a performance filter require re-jetting / adjustment of the carbs ?
Any reccomendations for the best performance filter to fit ?
Does a performance filter make much difference anyway (otherwise standard bike) ?

Good places to buy online for any of the above ?
Thanks in advance.

03-01-06, 10:58 AM

I've just fitted a K&N filter on my pointy SV650 SK4 and the bike was running very lean. Remap is a must if you want to get the most out of a performance filter, I found I had to increase it by ~5% throughtout the rev range.
In terms of "feel", you will gain at the top end but lose a little bit of grunt at the lower end. I also noticed the fuel consumption to be improved, especially on motorway trips. I would say that the fuel you save after 2500 miles would be enough to offset the cost of the filter and remap (a little odd considering the remap should feed more fuel into the engine...), but that might just be my bike.

03-01-06, 11:43 AM

If you've got carbs then you'll definitely need to rejet, which is a bit of a pain by all accounts (and if you don't it will run like a dog). The difference will be truly minimal in terms of an outright performance gain but will likely give you better throttle response.

The best mods I've found are a larger rear sprocket (go up by two teeth), fit an R6 throttle tube (increases engine response considerably), and if you dont mind the aggro of fitting it the 4 degree ignition advance key (which will give you a beautiful low down and fat torque curve).

Also consider that any major preformance gains will also affect your insurance, so bear that in mind.

.

Skip · 03-01-06, 12:11 PM

Considered going for an air filter myself but decided that the gains probably werent worth the effort so have gone the route below...

Quote:

Originally Posted by jonboy

fit an R6 throttle tube (increases enginre reesponse considerably)

Got it over Christmas (£7 from Yamaha) - havent fitted it yet but am looking forward to the results!

TSM · 03-01-06, 12:18 PM

I just thought....

If suzuki always claim much higher BHP for the SV than realworld output, then you could always do some mods, get it dynoed and get it up to the claimed power level. Then the insurance companies might have a problem claiming a power increase on your bike, when actualy there was none as the bike was supplied with lower than claimed power and you are already paying for the claimed power output.

Skip · 03-01-06, 12:31 PM

Quote:

Originally Posted by TSM

I just thought....

If suzuki always claim much higher BHP for the SV than realworld output, then you could always do some mods, get it dynoed and get it up to the claimed power level. Then the insurance companies might have a problem claiming a power increase on your bike, when actualy there was none as the bike was supplied with lower than claimed power and you are already paying for the claimed power output.

Interesting - never looked at it like that - I wonder if that would be the case for all vehicles and whether it would actually stand...?

03-01-06, 01:00 PM

It's certainly a good point, but I rather feel that Suzuki would admit that it was power at the crank rather than the rear wheel and your case (in the hands of a good prosecuting lawyer) would doubtless fall apart.

On the other hand it would be almost impossible for them to prove what your bike was producing at the crank as they'd have to take the engine out and have it dynoed by a specialist which would be exhorbitantly expensive.

I think the end result would be that in the event of a claim they'd simply refuse to pay out and you'd have to hire Sythree to sue them

.

.

03-01-06, 03:24 PM

Eek , just seen how much a stage one jetting kit is

£30 quid for the filter, £80 for the jet kit

Think I'll go for standard £18 Suzuki one

I think I need to learn to ride a bit better before I make the thing go any faster anyway.

Thanks for your advice chaps.

03-01-06, 04:28 PM

If you pop into Hein Gericke they do 5 litres of Motul semi-synth oil, oil filter and air filter all for £24.99!

.

03-01-06, 06:37 PM

Yes, but that's only if they have it in stock. I only got the oil and oil filter for the same price (£24.50) and the fact they didn't have the air filter is tough luck

How does the R6 throttle tube improve response?

03-01-06, 10:29 AM	#1
tricky Guest Posts: n/a	Air filter questions I need to replace the air filter on my SV ('02 curvy) I don't know wether to replace with a standard Suzuki (or pattern) or go for a performance one. Will a performance filter require re-jetting / adjustment of the carbs ? Any reccomendations for the best performance filter to fit ? Does a performance filter make much difference anyway (otherwise standard bike) ? Good places to buy online for any of the above ? Thanks in advance.

03-01-06, 12:18 PM	#5
TSM The Sick Man Mega Poster Join Date: Nov 2004 Location: Peckham.SE.LDN Posts: 4,768	I just thought.... If suzuki always claim much higher BHP for the SV than realworld output, then you could always do some mods, get it dynoed and get it up to the claimed power level. Then the insurance companies might have a problem claiming a power increase on your bike, when actualy there was none as the bike was supplied with lower than claimed power and you are already paying for the claimed power output. __________________ OTR: KTM 690 Duke R 2015 Full Akro SIDELINE: Kwak ZX636 A1P 2002, Red, R&G's, Yoshi, Double Bubble Screen GONE: Kwak ZX-7R P1, Full Akro, Undertray, Screen GONE: SV650S K2 Very Bruised & Without Fairing, Motovation Frame Sliders, R&G Ally Sprocket Toe Protector, HEL 2 Line Setup, GSXR K1 600 RWU Forks, Barnett Clutch & Springs, Penske 8981 Shock, Gilles Ti Rearsets, Steel Barends, Scottoiler, AFAM Chain & Sprockets, Twin FIAMM Horns, Skidmarx Bellypan, Full Micron Zeta Steel System, Cut down undertay. Forum Problems & Information / Site Suggestions

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03-01-06, 10:58 AM	#2
Italianjob Guest Posts: n/a	I've just fitted a K&N filter on my pointy SV650 SK4 and the bike was running very lean. Remap is a must if you want to get the most out of a performance filter, I found I had to increase it by ~5% throughtout the rev range. In terms of "feel", you will gain at the top end but lose a little bit of grunt at the lower end. I also noticed the fuel consumption to be improved, especially on motorway trips. I would say that the fuel you save after 2500 miles would be enough to offset the cost of the filter and remap (a little odd considering the remap should feed more fuel into the engine...), but that might just be my bike.

03-01-06, 11:43 AM	#3
jonboy Guest Posts: n/a	If you've got carbs then you'll definitely need to rejet, which is a bit of a pain by all accounts (and if you don't it will run like a dog). The difference will be truly minimal in terms of an outright performance gain but will likely give you better throttle response. The best mods I've found are a larger rear sprocket (go up by two teeth), fit an R6 throttle tube (increases engine response considerably), and if you dont mind the aggro of fitting it the 4 degree ignition advance key (which will give you a beautiful low down and fat torque curve). Also consider that any major preformance gains will also affect your insurance, so bear that in mind. .

03-01-06, 01:00 PM	#7
jonboy Guest Posts: n/a	It's certainly a good point, but I rather feel that Suzuki would admit that it was power at the crank rather than the rear wheel and your case (in the hands of a good prosecuting lawyer) would doubtless fall apart. On the other hand it would be almost impossible for them to prove what your bike was producing at the crank as they'd have to take the engine out and have it dynoed by a specialist which would be exhorbitantly expensive. I think the end result would be that in the event of a claim they'd simply refuse to pay out and you'd have to hire Sythree to sue them . .

03-01-06, 03:24 PM	#8
tricky Guest Posts: n/a	Eek , just seen how much a stage one jetting kit is £30 quid for the filter, £80 for the jet kit Think I'll go for standard £18 Suzuki one I think I need to learn to ride a bit better before I make the thing go any faster anyway. Thanks for your advice chaps.

03-01-06, 04:28 PM	#9
jonboy Guest Posts: n/a	If you pop into Hein Gericke they do 5 litres of Motul semi-synth oil, oil filter and air filter all for £24.99! .

03-01-06, 06:37 PM	#10
Fuzz Guest Posts: n/a	Yes, but that's only if they have it in stock. I only got the oil and oil filter for the same price (£24.50) and the fact they didn't have the air filter is tough luck How does the R6 throttle tube improve response?