10,000 mile service

[desmo666]

Hi, I wonder if one of you guys could help, my rocket is due for the 10k service, its got all triumph stuff on including tors and cat bypass piework, its running the 20056 tune and the main fault apart from the occasional backfires is the snatchiness at low revs/speeds. Now according to the book during the service they balance the throttle bodies, do you think this might improve this ?Also at the time the tune I think was correct but now people are preferring some tunes over others, could someone advise on the one to go for (planing to get a tuneboy in time ).
All help would be greatfully appreciated as we are off to a rally in Italy in a couple of weeks on it .
cheers
desmo

 

[RiderRocketman]

What does "snatchiness" mean? I'm a yank and haven't a clue... Abruptness, not smooth, or a hesistation in power delivery?

The "correct" Triumph tune for your setup is supposed to be 20054. The 56 tune is supposed to be for aftermarket pipes (TORs) with empty catbox.

 

[desmo666]

sorry for the word snatchiness, it means sometimes the power when you try to feed it in smoothley, say when exiting a junction it seems to come in a little abruptly, it never causes too much of a problem but when I have my daughter on the back and I`m trying to be ultra smooth it is harder to do than it should be. I know the tune is the one for when the cat is removed but still using the same collector but when i used the correct tune it backfire far more than with this tune and basically ran like a bag of ****e. The reference for the tunes i have is as follows

20050 tune= full power with catalyst in box ( Calif ) stock muffler
20055 tune = full power without catalyst in box ( stock muffler )
20051 French= verision
20052 = German version
20053 = after market muffler( or TOR silencer) with catalyst in box (Calif)
20056=aftermarket muffler( or TOR silencer ) without catalyst in box
20054= aftermarket muffler(or TOR silencer ) with cat box removed ( bypass pipe )

To add to this, I`m a fully qualified automotive technician, been in the trade for 25 years and worked with and around bikes for as long including working at the TT for several years for teams running solo`s and F2 sidecars.
I know the bike fueling is a problem exacerbated by the size of the pistons and lack of revs in the situation I`m explaining, but I`m a perfectionist and will endeavour to get it right. Maybe the tuneboy is the answer... but as it has got to be serviced to keep the warrenty up, I`m hoping for a compromise before my trip.
ciao
desmo

 

[RiderRocketman]

Before I went Tuneboy, I had the same setup as you but was running on the 20055 tune, which the dealer's computer recommended over the "correct" tune for some reason and I haven't had any strange problems besides the occasional decel popping which is common with the Triumph tunes, so you might try the 55 tune just to see how it goes.

Your "snatchy" problem though seems more like a maintenance issue than a "tune" issue - throttle bodies like you said, servo alignment or throttle cables needing adjustment, so applying a Tuneboy tune likely won't solve anything. Whatever it is, this is an issue your dealer should sort out under warrantee, so have them look at it when you have the 10k service.

Good luck and do tell what is found.

 

[desmo666]

cheers thanks for your help,
Its in for the service on wednesday so I`ll let you know how it feels after that.
thanks again
desmo