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Twins Technical Talk Technical Talk for Hinckley Triumph Twins: Bonneville, T100, Speedmaster, America, Thruxton, and Scrambler

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Old 01-02-2008   #21 (permalink)
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Fake Carbs

Well if I got a new Bonnie and saw fake carbs I would be a little to say the least. One of the reason I traded in my 05 V-Star on the 07 Bonnie is the fake plastic valve covers along with other useless bling crap. I love the retro reality of the Bonnie but please if someone from Triumph monitors these threads don't insult our intelligence by resorting to fakery.
"That just ain't right"
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Old 01-02-2008   #22 (permalink)
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I like carbs

Fuel injection is dandy-been perfected-cranks easier-runs fine-better gas mileage-not much fuss but I bought a T-100 because it has carbs, it's a bit fussy when its cold (me too) and sometimes pretty aggravating (that's me) and that's what I like to fool with.

And, I got one so let the world change if it needs to-I'll just toodle around with my carbs burbling. I'm 58 so I figure I'll ride it until I'm a 100 & then see what I like then-know what I mean?
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Old 01-02-2008   #23 (permalink)
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I can't wait to dump my 06 and get an EFI Bonnie. As soon as a white one hits Dallas, it's trade-in time. When I bought it, I didn't know it had carbs (or I would have bought something else), someone at work pointed that out. I was bereft. 2006 and carburetors STILL exist???? (Who wants a beat up 2006 Bonneville for cheap???)
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Old 01-02-2008   #24 (permalink)
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We are an interesting crowd. Some of us adore the carbs and some us loathe them
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Old 01-02-2008   #25 (permalink)
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but the thing I didn't like was that the fuel tank is now down to 3.5 gal (16L). I guess this was to accomodate more room needed under the tank for the FI setup. I like my carb version for now but FI is the way to go in the future.
Possibly for the fuel pump and assorted stuffage which will almost certainly live in the gas tank for EFI.

Carbs are nice to play with, but EFI is soooo much better for mixture control, and Triumph definitely has theirs dialed in beautifully. My Sprint had magic FI!

Hate to say this as I'm sure the carb guys won't like it, but EFI is also much more reliable - after all, when was the last time you heard of failed EFI? I'm not 100% sure of this, but I believe ALL new cars have had EFI since 1982 - maybe somebody can confirm or correct that?

Might as well "embrace that which you cannot change". Carbs are toast, guys! Live it & love it or sulk forever... If I could put EFI on my other carbed bike for less than some ungodly sum, I'd do it in a heartbeat!

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Old 01-02-2008   #26 (permalink)
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Yeah, fuel capacity is down a bit, but that is made up by the fact that you can expect between a 10-20% better fuel economy. ( I forgot where I read that. Some review of the EFI Bonnies in the UK I think.)
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Old 01-02-2008   #27 (permalink)
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Yeah, fuel capacity is down a bit, but that is made up by the fact that you can expect between a 10-20% better fuel economy. ( I forgot where I read that. Some review of the EFI Bonnies in the UK I think.)
Let's just say that my 500+ lb, 105hp, 955, fuel injected Tiger gets way better mileage (50+ mpg under hard riding) than my carbed bonnie.

I'd want a carb if I was riding through Africa or South America, but not anywhere I expect to ride this bike.

I've never understood the "soul" argument. Did points have more soul than electronic ignition? Do drum breaks have more soul than disc? Cable more than hydraulic? Has improved metallurgy tempered out the soul? Positive ground more than negative ground? Or dare I say, Lucas more than someone that can actually build an electrical system that doesn't crap out at random times?

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Old 01-02-2008   #28 (permalink)
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One reason for the reduced fuel capacity is the the electric fuel pump will be inside the gas tank. For some reason, they always do that with the FI bikes - at least all of them I'm familiar with. The story I always hear is that they do that to cool the pump. Let's see... You want to cool an electric pump that gets hot, so you submerge it in gasoline. Why do I have trouble believing that?

My last two Suzuki motorcycles have been fuel injected. Functionally it is great. Turn key, press starter, ride off. Always idles at the same speed, never cold blooded. Engine compression is over 11:1, yet it will burn 87 octane gas without complaint.

But I am happy that I'm getting an '07 Bonneville T100 with carbs, choke, and fuel petcock. Yes, fuel petcocks have disappeared as FI has been fitted - replaced by fuel gauges. It is just more appropriate for a retro classic bike that the rider have to fiddle with a thing or two to get it started - and warm it up a bit.

The "fake carbs" thing does bother me. Why not bolt a fake kick starter onto the side of the bike while they are at it? I'm probably over reacting. Hopefully it won't look too awful, and hopefully the Modern Classic Triumph line will survive this.
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Old 01-03-2008   #29 (permalink)
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Quote:
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...Or dare I say, Lucas more than someone that can actually build an electrical system that doesn't crap out at random times?

Geof
Huuuuuh... Yeah Geof, we actually have that kind of soul on the Bonneville. It's called Gill Engineering instead of Lucas, but we still have SOUL that leaves you stranded because the pickup coil crapped the bed. As a bonus prize, my soulful voltage regulator went out too taking 4 bulbs along for the ride. Yeah, we still have some soul left in the Bonnevilles. Mine anyway. Some have even had soul with the bad 865 ignitors and broken spokes.

On edit: It's funny that most of that stuff (Electrical) affected only the late 2005's and 2006 Bonnevilles.

Last edited by n578md : 01-03-2008 at 12:20 AM.
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Old 01-03-2008   #30 (permalink)
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I do not really understand those who loathe the EFI being designed as fake carburetors. There is so much 'fake' on these bikes (engine case design, 'simulated' primary chain cover, etc. etc.) and still we love them. Now EFI is a real technical improvement (and an inevitable one too), as was in the past the replacement of magneto and points systems by way better electronic devices.
In case you haven't seen the new EFI yet, here are some pictures I took. As far as I'm concerned: well done, Triumph!



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