Triumphrat

jstark47 · 05-24-2006

......."block off kit" ??

My Bonnie (2005 790cc) has been at the dealership for service since May 5. Went in for 6000 mile service, and correction of excessive backfiring. The bike had TORs and rejetting done by the dealership in March - bike pulls like gangbusters under load, but backfires too much when unloaded. (I'm not talking about just some burbling and mild popping here, take my word for it, it's too much.)

Dealership just called, said they worked on the secondary air valve but that wasn't the problem, now they think they need to install a "block off kit". They've ordered the parts, and we wait and wait..........

What is a "block off kit"? Any ideas? :???: (I'm starting to get the uncomfortable feeling they're not sure what they're doing...... have nightmare visions of my bike still in the shop in August!)

Thanks for your help,
Jonathan

[ This message was edited by: jstark47 on 2006-05-24 09:11 ]

dazco · 05-24-2006

Probably talking about an AI removal kit.

eagle · 05-24-2006

It's a DIY job really for anyone who can hold a spanner! So hopefully you dealer will manage it! Esp easy if they use a kit which has the right threaded plugs and stuff to do the job. The Jenks offering even has detailed instructions - hopefully you have one of those rare dealers / fitters who can read? :hammer:

jstark47 · 05-24-2006

Quote:

On 2006-05-24 09:42, eagle wrote:
hopefully you have one of those rare dealers / fitters who can read? :hammer:

Dunno. They've been having "issues" in their service department. The long-time service manager, who was a Triumph advocate, left. The next service manager lasted 6 weeks. The owner is now managing service himself. He's an old-time motorhead, so it could be worse.

Just got off the phone with him. (He's hard to get hold of, but I lucked out.) "Block off" = "AI removal", Dazco was right. Said he spent a lot of time fiddling with the bike and talking to Triumph on the phone. Finally Triumph told him "unofficially", just pull the AI. He ordered the kit last night, hopes to have it by Friday. We'll see what we'll see....

Panthermark · 05-24-2006

Dude, you can do the A.I. removal kit yourself for about 6 dollars in parts and 20 minutes of your time. You basically need two metric oil pan screws, two rubber nipples, and a rubber plug.

jstark47 · 05-24-2006

Quote:

On 2006-05-24 10:34, Panthermark wrote:
Dude, you can do the A.I. removal kit yourself ......

True I'm sure. Two issues, though:

1) the bike's up at the dealership now semi-disassembled, if I pull it out of there, will still have to pay them $$$ for their time.
2) the dealership did the tuning work after installing the TORs. This is part of "getting it right" for them. Who knows, maybe they'll learn how to do this right, which benefits other Bonnie owners in my area....

dazco · 05-24-2006

Chances are the popping will not entirly go away with the AI. Maybe even not that much. If it doesn't i'd suggest investigating your needles as to what they are and how many shims. the dealer probably just left the neddles stock, and from my experience at least, thats where my popping totally stopped....after i got the needles as rich as i could go w/o being too rich. Mine literally never pops with rare exeption on startup. But never ever while riding. if it still does i would suggest one shim and see if that helps. Many people seem to ignore the needles and concentarte on the mains and mixture screws when modding. Thats a big mistake because thats whare i at lest have found the popping got fixed and where 90% of my power gains have come from when jetting for the mods i've done.

jstark47 · 05-24-2006

Dazco - thanks for the hint about the needles. I believe they are still stock. Looking back in my notes, the set-up in March was "120 mains, 42 pilots, and adjustments on the mixture screw."

Mine does both the popping when unloaded, and the start-up bang, which I really hate.

Panthermark · 05-24-2006

"120 mains, 42 pilots"

My guess is that your are too rich....yup, too rich. Normally not a problem because it's not like you are wayyyy rich with 150's in or something.

Yes, usually you get popping on a lean mixture.....

BUT

With the A.I. still on the bike, you have more unburnt fuel then normal.....hence more fuel being ignited in your headers, and more popping.

If your ONLY mod is TOR's, you should have 115's and your stock 40 pilots.

Remember, your pilots are responsible for fuel up to 1/4 throttle. Think about it, if they are too big, you are getting too much fuel when unloaded. Hence the unburnt fuel popping in the A.I.