TPS Adjustment Step-by-Step Pictorial Guide

Defo not Sir. This is on a bike with over 61,000 miles done by me so it's not a false result. I even reset the TPS to 1,450 for a few tankfulls and the MPG went back down again.

[yorkie_chris]

No surprise, it is making it run lean on pickup.

What do you want, 3mpg or better pickup?

[Tallguy]

WARNING re TORX Security Bits!

I bought some in good faith from a local hardware shop, and it was only AFTER I'd chewed up the bolt head that I realised this:

The Draper TORX security bits I bought were "five pointed stars" not "six pointed".

I didn't know they came in two flavours, and of course thought it was the chewed up bolt head rather than me doing the chewing

I replaced the bolt with a cheapo one, which I think has loosened 'cos it's jerky again about 4000rpm. Guess what I'll be doing this weekend?!

Hope this helps someone.

Honestly, 5-pointed Torx security bits are available to those dim enough (like me) to not count the points - why would you? I didn't and made an assumption, which made an ass out of me and "umption"!!

Chris, that's the point. I don't have bad pickup or snatchy throttle from low RPM so I'm having the 3mpg.

[yorkie_chris]

Hmmm OK, that is strange. A few 650s I have tested before and after showed a large improvement in pickup. I'd probably describe it as same as moving the needle a groove or so on a carbed bike.

I did notice a big improvement when I adjusted the TPS on Diane's 650 but she doesn't keep fuel logs to notice what the effect on MPG was. Maybe the extra rotating mass of the thous engine coupled with its better lowdown torque masks bad pickup, maybe I'm just delicate on the throttle as I do spend a lot of time riding below 2,500 rpm in town. An indicated 32MPH in 5th is perfectly doable with good pickup.

Nice one .... I shall do this asap ....

I was actually about to start searching why my bike was so lumpy at lower revs ..... I have to say I didn't notice it at first, but as I've relaxed with the bike (had it about a month now) .... I've noticed it more and more.... this morning (after filling up at Sainsburys) was the last straw !!

Cheers !!!

ps. an other novice DIY'er mods ..... anything that can make it look like a Daytona 675 ??

Oh - one other thing ....

You say that 'your prefer temperature is......'

Is there a way of adjusting the running temperature ..... Mine fluctuates (quick quickly) between 89 and 80 ...and somewhere in between!!

did this to day works ok no great improvment but could do 35mph in 6th and not have it stall so thats somthing lol i supose, defo more pick up in 2nd as i can now power wheely in 1st and 2nd gear

PS got mine set to exactly just under the 1500rpm mark EG 1450rpm was at 3200rpm

ohh and buy the way what do you lot use to prop the tank up as i had to use a screw driver but seems like the sv has a tank prop ???

There's is a tank prop under the pillion seat ....on the pointy antway!!