4th Gen Need to crank throttle to start while choked

Discussion in 'Mechanics Garage' started by bluegen1e, Oct 5, 2015.

  1. bluegen1e

    bluegen1e New Member

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    Hey guys, 95 viffer here with 25k on the dash. very recently got the dynojet kit installed and carbs tuned. was running like a wild horse. got it done by Dave Koban, the mechanic of the famed Britton 1000.

    few weeks ago the bike died at a red light. had to push start it as the start button did nothing. now every time I start the bike I have to crank the throttle even with the choke pulled. I've got the plugs replaced about 2 years ago - NGK iridiums.

    what givses?? :crazy:
     
  2. karazy

    karazy New Member

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    Have you checked the battery and charging system? "the drill"
     
  3. bluegen1e

    bluegen1e New Member

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    The battery was replaced end of last season and I have R/R from Ricks motorsports. I don't think it's the battery since all electrics work well, and I doubt the bike would die at the light and not start due to the battery.

    Thanks!
     
  4. karazy

    karazy New Member

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    Stalling at a light is how most people find out that the charging system is not working.
     
  5. Knight

    Knight New Member

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    How many miles have you ridden since the incident? Are you saying that the bike still rides just fine, and everything works, but when the engine slows to idle, it dies? You choke it, and continue happily on your way? Then if you come to a stop with the choke on, does it continue running? If yes ===> Readjust the idle mixture? I do not know the probability that the carb would fall out of tune. Maybe it was tuned at 90°F but the temperature in your area plummeted to 60°F, and now it needs an adjustment? (This is a lot of guessing until you fill us in with more detail.)
     
  6. Badbilly

    Badbilly Official VFRWorld Troll Of The Year!

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    A balance of carbs and protein are a good thing. Choke>>>
     
  7. bluegen1e

    bluegen1e New Member

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    The bike died once at a light but hasn't died on me since. since then every time I start, I need to blip/crank the throttle just a bit to start it. I don't think its the temperature because I'm in NY and the weather hasn't dipped much and the day it stalled, it was a hot summer day.

    everything works fine, just when I start it (with the choke pulled like always) I need to give it some gas, otherwise it doesn't turn over. I've ridden it around town few times since but not my usual everyday commuting for the fear of it dying on me in Manhattan.

    thanks guys!
     
  8. karazy

    karazy New Member

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    So to cut to the chase, your starter won't engage until you play with the throttle. If this is what you are trying to say, check the starter and kill switches. They may just need a cleaning.
     
  9. bluegen1e

    bluegen1e New Member

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    ::update::
    pulled the main power plug thing that sits next to the battery (a four prong plug with a 30amp fuse) dusted it off and sprayed some wd-40 and plugged it back in. had the battery on a tender overnight and started it. bike started. been starting the bike for a week straight with no issues. rode it today, seems to be okay.

    will give another update in a few days. thanks for your input guys.
     
  10. ridervfr

    ridervfr Member

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    You may want to check your charging system at the battery terminals, (see how its charging.) I bet your connector (if you still have it) from the r/r to the battey, looks bad. I would eliminate this with connectors and solder followed up with shrink tubing. You could do the same for the stator wires towards the front of the bike on the right side.

    I had an issue with the starter relay getting fried, its all electrons mind you! :loco: :mech: you free up the flow by removing these plugs that create heat and resistance.
     
  11. bluegen1e

    bluegen1e New Member

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    Thanks ridervfr! I will check these points. Where can I find the connector from the r/r to the battery? There have been some work done to the wiring around the R/R when I bought it. I will post some pics soon of what it looks like. and where is the starter relay?

    Thanks for the excellent tips.
     
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