Correct order of doing the following jobs
 

I need to do the TPS adjustment, Throttle body balancing and Valve clearences. I was wondering which order I should do them in as I know the TPS can be affected by the throttle body balancing. Obviously the first two won't actually effect the results of the third, but I was wondering if after altering the shims (if necessary) it would affect the TPS and/or throttle body balance?

I think I've finally got all the tools needed, just wanted to see what the right order was before I get my hands dirty. Thanks in advance.

Re: Correct order of doing the following jobs
 

Morning all.
Valve shims first, TPS adjustment second, & balancing third.
Incorrect valve clearances can indeed cause the synchronization to wander.

Cheers.

Re: Correct order of doing the following jobs
 

Thank you, Sir. I ended up going for the carbtune you recommened (2 cyclinder, "carbtune pro").

Re: Correct order of doing the following jobs
 

Where did you get it from Ceri? Direct from Morgan? - I heard that they are having supply issues? Sorry to derail your thread...

Re: Correct order of doing the following jobs
 

Busters. They had them in stock and, oddly enough, it worked out a couple of quid cheaper than buying direct.

Re: Correct order of doing the following jobs
 

Like Ceri, I too thought the TPS was affected by balancing the throttle bodies. I stand corrected.

Re: Correct order of doing the following jobs
 

Oh and how much damage are you doing if all 3 are seriously out?

Re: Correct order of doing the following jobs
 

As a major service should include Valve clearance check and carb sync anyway, it's not a lot more work to check the TPS while you're in there...

Re: Correct order of doing the following jobs
 

Afternoon all.
I always find that as balance has the greatest effect on how an engine runs, it's best to it do last. Although in practise you could do the TPS adjustment last, as it has no effect on the balance of the throttle bodies.

Stu, valve clearances are the main thing that can damage your engine if they're seriously out of tolerance. Poor balance & TPS adjustment though not ideal, tend to make your engine run lumpy, as opposed to seriously damaging anything. I'd still get it sorted though.

Cheers.

Re: Correct order of doing the following jobs
 

I think that's what I've got at the mo' seriously lumpy vibration through the footpegs & viscous throttle response. Hope the clearences are OK - any telltale signs for them?

Re: Correct order of doing the following jobs
 

Afternoon all.
You need to get your balance sorted, as it sounds as if it's way out.
Unfortunately there are no tell tale signs that the clearances need doing until it's too late, so you'll just have to get them checked.
On older five valve Yamahas such as FZ750's & Genesis/Exup 1000's a sure sign that the clearances needed doing was poor starting from cold. I have had a few SV's that have exhibited this behavior & plenty that haven't. So you can't even assume that just because it starts ok from cold despite running roughly, the clearances are ok.

Cheers.

P.S. Check your engine mounting bolts, if you're experiencing a lot of vibration.

Re: Correct order of doing the following jobs
 

I do the TPS last, the throttle stop screw and cables are on the front TB, the TPS on the rear, as the TPS is set very near to a shut throttle and it's possible even with small changes in balance to alter the shut position of the other TB it can change the TPS setting - anyone who has adjusted the TPS will know how minute changes make a significant alteration in the TPS setting.
It may make no odds, there may be no significant change in balance required - but it always has the potential to.

Re: Correct order of doing the following jobs
 

Thanks for the advice folks.

Re: Correct order of doing the following jobs
 

Don't forget the new cover sheet on your TPS report...

Re: Correct order of doing the following jobs
 

No No No Balancing second, TPS third.[-X