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- - TRE mod failed on 07 (http://forums.sv650.org/showthread.php?t=92585)

TRE mod failed on 07

Hey fellas.. i have an 07 SV650 and did the TRE mod. I did it exactly the way i read from 2 different sites (they were very similar). Once i finished and started the bike. The FI came on and display show FI. The temp said F1 and alternated to temp. In the manual it said to take to dealer.. Yeah right. But when i pulled in the clutch the RPM did rise. Seems like it worked but no where did i read the FI light was a by-product of this mod. Have any suggestions. I know that the 07 has 2 spark-plugs per cylinder so does the TRE mod not work on 07 and newer?

Thanks Vega

Re: TRE mod failed on 07

Its a waste of time anyway.

Firstly you arent removing the retard (which is very minimal anyway). You are bypassing it by making the bike run in the top gear fueling and ignition map. Top gear doesnt have the retard.

So your bike will be fueling and igniting like it should for 6th..but you will be using this in the rest of the gear positions too!. Basically top gear runs richer than the rest. Hence why the idle goes up.

Basically by doing this you are undoing what Suzuki have spent years doing by getting the fueling to adjust to what gear you are in etc.

Your better off taking it off..getting a can and getting it mapped for the bike.

Re: TRE mod failed on 07

Quote:

Originally Posted by vegacr250 (Post 1227675)

I am assuming you are in the US Vega.

Twin Spark and ABS are NOT standard (or available I believe) here in the UK.

Not telling you to go away, but any mods like this are essentially for a different engine.

With the twin spark I am assuming the fuelling would be a little different to allow for the more efficient sparking.

I have heard different from what SV650Racer says, but she does know her stuff and just how much of the TRE Mod improvement is in the riders head......

Re: TRE mod failed on 07

Twin spark head is standard here in the UK on the K7 models.

Re: TRE mod failed on 07

Quote:

Originally Posted by SV650Racer (Post 1227808)

Twin spark head is standard here in the UK on the K7 models.

Thanks for that - hadn't heard anyone mention it, or seen any big fuss made over it.

does it make any real difference to the bike?

Re: TRE mod failed on 07

Quote:

Originally Posted by SoulKiss (Post 1227819)

does it make any real difference to the bike?

It'll make spark plugs more expensive. :rolleyes:

Re: TRE mod failed on 07

Yeah, just about twice as much.

Re: TRE mod failed on 07

yeah i am from the us. well i was already planning to remap the bike. so i guess it is a waste. i did find anything that said that remapping the bike would do something similar or i would have not even tried it. best part is i hacked it back together because i torn one of the pins. so i probably won’t have a warranty on the bike. yay. i going to do more research n find the out if the TRE mod on 07 n newer. but as of right now it looks that it does not work.

Re: TRE mod failed on 07

I did the TRE mod because I misunderstood what it did. I sometimes get a hiccup at about ~9k when on full throttle and it's blummin annoying. I thought the TRE mod would fix that.

Having read round this a bit better now and found that:
a) it's effect is apparently at low revs
b) generally doesn't sound all that clever
I'm going to back the change out at some point. It did prove a useful exercise in learning how to get the tank off though.

Re: TRE mod failed on 07

as 2mths says the TRE is often done when people think it will cure an already existing problem. Although most of the time the problem, like a hiccup at 9k could simply be cured by getting the throttle bodies balanced and the TPS adjusted.