tuning the sv650

[svjimbo]

hi i have a sv650 naked its a 1999 model. does any 1 kno how to make them a bit quicker how to tune up the engine

[Holdup]

New jets for carbs, full exhaust system, de snorkel air filter / upgrade to a race filter of some sort, my understanding you can upgrade to pointy cams (not sure which model) or you could buy some cams from JHS (i believe YC has some in his bike)

[Razor]

how to tune up the engine

http://visual.merriam-webster.com/images/arts-architecture/music/musical-accessories/tuning-fork.jpg

[fizzwheel]

Depends how much BHP you're after and how much money you have to spend.

If you want serious power gains, IMHO buy another bike.

Rejet, Full Sysmtem, IIRC do a cam swap from the point engine into yours ( search its been covered lots of times ) new air filter and thats your lot, unless you start looking at boring it out to increase the capacity ( again search its been covered alot )

HTH, welcome to the forum

[madness]

Rather than spending a small fortune trying to get more power from the SV, I would save my money up and buy a more powerful bike that handles better. To me, power isn't the real issue. For everyday riding, the SV has plenty. There's not that many places you can use it's power fully anyway.

[Speedy]

Also, as yours,like mine is a naked SV, how much faster do you want it??

I mean, anything above the national speed limit and I'm very nearly being blown off of the bike!!!

You could always change the gearing!? I may be wrong, I'm sure someone will correct me, but the SVS use a smaller rear sprocket than the Nakeds!?! So, you could gain a bit possibly that way, but aero-dynamics will get the better of you!!!

[northwind]

£130 or thereabouts for the cam swap, since it's cheap for the results, reversible, and straightforward. Fuelling tuning is expensive if you get it done by a pro, and not really worth it for the price (you can do it cheap like me, £150 for filter jets and exhaust system, then jet it yourself, then it's possibly worth it).

DOn't tune an SV for power, it's silly... Tune it for general enginey niceness- more torque, wider peak power, more usable engine- if you must but do the suspension first.

[Irksy]

Don't tune an SV for power, it's silly... Tune it for general enginey niceness- more torque, wider peak power, more usable engine- if you must but do the suspension first.

I agree with this completely, since changing the front fork springs in my curvy to Maxton Springs with heavier oil and adding a 636 rear shock I have discovered just how much fun the sv actually can be, and knowing the bike is firmly planted and is not going to wallow mid corner has given me such a confidence boost that it really feels like i am riding a quicker bike! I spent about £120 sorting the suspension and I can honestly say it is the best money I have ever spent!

[johnnyrod]

I've ragged my 99 curvy round many a track and the main bugbear was getting eaten on the straights. The cam swap helps this but in the real world it's pointless as it only really comes in over 7000rpm. I'm still getting eaten on the track but less easily, but as Windy says, sort the bouncy bits first as they're the bits that are helping me keep up with people better than more go. Or get a faster bike.