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OK, Didnt know whether to post this in Technical
#278609 07/12/2008 1:31 PM
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skid Offline OP
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I have been reading about the fuel injected America and Speedy coming with a Choke. Why would be the question. I have had a few other fuel injected triumphs and no choke ( speed 4, speed 3, Rocket 3 ) I just dont understand what the need is for it on any fuel injected bike. I had also read that Triumph warns that if the Choke is left on too long on the fuel injected bike, the pipes will turn blue. Can you say design flaw??? Anybody had one long enough to really check and see how this injection system works, is it a direct injection system? Or more like a throttle body ( basically an electronically injected Carb )?
Mark

Re: OK, Didnt know whether to post this in Technical
skid #278610 07/12/2008 1:51 PM
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Monkey Butt
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Hi Mark I should be able to answer that question after next Friday as I have just ordered the EFI manual for the speedmaster.


Ray(UK)
Re: OK, Didnt know whether to post this in Technical
birchr #278611 07/12/2008 1:56 PM
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skid Offline OP
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Cool, just been rather curious about it.

Re: OK, Didnt know whether to post this in Technic
skid #278612 07/12/2008 2:07 PM
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Loquacious
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it is prob a fast idle, the victories have that to help them warm up faster

Frank


(Former)05 BA tbike pipes, ai removed, Freak, mikuni hsr 42's, 904, ported/polished head, 1mm oversized valves NOW-2010 silver and black tbird
Re: OK, Didnt know whether to post this in Technical
skid #278613 07/12/2008 6:20 PM
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chy Offline
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It is a throttle body injection type setup and i can imagine the "choke" just richens the mix and maybe increases the idle.
If you leave the choke on too long on the carb models it will blue the pipes so I suppose it stands to reason.

Re: OK, Didnt know whether to post this in Technic
chy #278614 07/12/2008 6:29 PM
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That doesn't make sense. Chrome blues from overheating, but running the bike richer won't do that - they run hotter from being lean, not rich.

Re: OK, Didnt know whether to post this in Technic
Sandmann #278615 07/12/2008 6:33 PM
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skid Offline OP
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That would be in theory, but the problem is the system. If you have just a little bit of fuel being dumped out the exhaust, the air injection basically makes it burn there, small amount of burn, not much heat. However if you dump a lot more fuel into the exhaust, it will burn so much that it gets hotter. And When you put open pipes on the bike and keep the air injection, well you just make matters worse, pipes get blue blue blue!!! At least I assume that is the theory, Chy would know more!
Mark

Last edited by skid; 07/12/2008 6:34 PM.

Moderated by  bennybmn, chy, mert 

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