Igniter, pickup coil or spark plug coil? - Page 3 - Triumph Forum: Triumph Rat Motorcycle Forums
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post #21 of 28 (permalink) Old 05-18-2012, 11:09 PM Thread Starter
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ZOMGosh!
I even remember reading it on here a few months ago. The battery cable was just a little loose! I had tried a known good coil already. Tonight on the way home it just died. No lights, obviously the power this time. I took the seat off and lo and behold, the hot cable was just a little bit loose. Thanks to my handy dandy Swiss Army knife with phillips screwdriver tool I fixed it in no time. I feel dumber, but richer because I never had to buy replacement parts.

"The possession of power inevitably spoils the free use of reason." Immanuel Kant
That explains why the sportbikers are driving like lunatics . . .
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post #22 of 28 (permalink) Old 10-09-2012, 01:31 PM
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Quote:
Originally Posted by Retro-Racer View Post
I don't want to start-up another round of Coilgate, but I do not think the ignitor module is the 'likely' source of your problem.

If you have had your carbs apart at some point (and who hasn't?), there is a possibility that the vacuum piston is not seated properly into the carb body and/or the spring spacer (aka: spider) has one of its legs blocking the bleed orifice at the bottom of the piston. These would cause the engine of misfire. Worth checking.

/M
Mike, any chance you'd have photo's of what one should be looking for?

I've developed an issue with my bike when cold, After warming my bike up for a few minutes (engine is hot to the touch)... When I push in the enricher (choke), and hit the throttle, my bike will start to permorm like it's running out of gas. Pull the enricher nob back out and it seems to run fine only at a really high idle when the clutch is pulled in. The bike will seem to run fine once it's been warmed up and only once it's been REALLY warmed up. This only started happening when I started fuggin' around with the jets and shimming the needles.

Right now my set up is ARK, K&N pod filters, AI removed, 150 mains/42 pilots thruxton needles with no shim at sea level. Some say I may be running too rich, but this has been my set up since doing the ARK 3 years ago and I only started having the issue when I started playing with different jetting.

I did pull the plugs and tried cleaning the Electrodes. In the process, if I managed to screw with the gap, could this be whats causing my problem?

Chris / RudeBoy BIR #309
Past rides:2014 Scrambler, 2008 T100, 1975 Honda CB400/4, 1989 Honda GB500, 1965 Honda CB450 Black Bomber, 1972 BSA A75 Rocket3

Last edited by bluesforchallah; 10-09-2012 at 01:35 PM.
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post #23 of 28 (permalink) Old 02-12-2013, 06:33 AM
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bluesforchallah when you start the bike with the choke (enrichener) out do your RPMs climb for a bit and then fall to a rough idle? If so I've been having similar problems. I also have the ARK and preds, but I am jetted with 152.5 mains (jetted on a dyno with an exhaust sniffer). Thought I might be rich, but this has been good for 5K+ miles. Mains however, do not affect the idle. So, I'm at a loss. I'd be interested to know if you have stumbled across any answers. Thanks. Later on.

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post #24 of 28 (permalink) Old 02-12-2013, 07:47 PM
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My bike seems to be running much better now that I've rejetted with new jets (150/42), rebuilt air mixture screw (rubber o-ring, washer and spring) and after blowing the air mixture screw hole out with carb cleaner and compressed air. Once I reset the air mixture screw setting and idle setting, bike has been running like a top. It will still have an occasional hiccup, but from what I've found, it's not uncommon so I just deal with it. I've got a Haynes manual on order and once I get it, I'll crack the valve cover and check valve clearances.

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post #25 of 28 (permalink) Old 02-28-2013, 04:02 PM
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Thanks man. I did just recently put in the thumb screws for idle mixture. Maybe I have some crud in there.

On the coat tails of a dead man she rides, she rides!
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post #26 of 28 (permalink) Old 02-28-2013, 05:10 PM
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It would be interesting to hearů out of all the people who've opened up their airbox how many of them experience the occasional hiccup thru the carbs vs those that haven't. I just recently read that it's not that uncommon for the stock CVKs to hiccup once the airbox has been chopped or removed and replaced with filters.

I'm going to replace my CVKs with FCR39s and it'll be interesting to see if my occasional hiccup disappears. I've wanted to do this for a couple years and if I can remedy the occasional hiccup that will just be icing on the cake.

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Past rides:2014 Scrambler, 2008 T100, 1975 Honda CB400/4, 1989 Honda GB500, 1965 Honda CB450 Black Bomber, 1972 BSA A75 Rocket3
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post #27 of 28 (permalink) Old 03-01-2013, 01:53 AM
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Most i reckon!

Quote:
Originally Posted by bluesforchallah View Post
It would be interesting to hearů out of all the people who've opened up their airbox how many of them experience the occasional hiccup thru the carbs vs those that haven't. I just recently read that it's not that uncommon for the stock CVKs to hiccup once the airbox has been chopped or removed and replaced with filters.

I'm going to replace my CVKs with FCR39s and it'll be interesting to see if my occasional hiccup disappears. I've wanted to do this for a couple years and if I can remedy the occasional hiccup that will just be icing on the cake.
I would have to think that most people have noticed a slight hiccup. The OEM set up is well tested at the factory and works ok. As everyone else does slightly different things in there play, there will always be some fine fettle. Actual jet sizes, shims and there particular thickness, altitude, heat fuel etc. as Forchetto once said somepeoples acceptance is maybe different to others.
I have found the fcrs a revelation as set up by TPUSA. No hiccup no starting issues one twist pre start after a few weeks instant fire up, mind my definition of cold is anything less than @ 15deg C. The only issue i have had with either carb is if the tickover is below that 1050 mark.
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post #28 of 28 (permalink) Old 03-01-2013, 09:16 AM
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I ran the stock CVK's for about 8,000 miles with no air box. Never a hiccup. Easy starts, even around 40░F, although I never had the opportunity to ride in anything colder while in Florida. Seemed to be a good workhorse of a carb.

Now with different carbs, I love the response and power, but miss the easy starts. Maybe I can use that For an exCuse foR the next step? Time to work some overtime.

(The artist formerly known as kreemsicleT100)

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"If y'ain't first, yer last." - Ricky Bobby
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