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Stuck in first.. bogging down


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So we got another banshee yesterday..

Today I was riding it & I went to stop, when I stopped the bike started making a wierd noise can't really explain it.. but after that it turned off and wouldn't turn back on, until like 10 minutes later.. the bike will turn on but when I shift into first it doesn't want to move and kind of bogs out..

What do you think it could be?

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The bogging could very well be jetting, and/or fouled plugs.

What elevation was the bike jetted at, if jetted correctly at all?

And what elevation are you currently riding at?

I thought it might be the plugs as well.. I'm not sure if it was even jetted right or anything from previous owner..

the elevation it was at was 6.969.. now it's at 7,474 elevation.

Edited by bansheegirrl
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When shit turns off as your riding usually yuked the top end in some way shape or form. Maybe flywheel rattled loose, trying to be optimistic. Over half of my business comes from recently purchased machines that seized on first real ride

 

My thoughts exactly, but i too am trying to be optimistic.

 

I thought it might be the plugs as well.. I'm not sure if it was even jetted right or anything from previous owner..

the elevation it was at was 6.969.. now it's at 7,474 elevation.

 

That's not enough elevation to worry about.

 

I always go thru a "new to me bike" before I really ride it.

I'd go thru all of it.

Check and replace the plugs. Plugs are cheap.

Drain the fuel and mix a fresh batch.

If you're having problems with it maybe just mix 2 gallons or so and use a "ratio rite" cup.

Check water and gear oil.

With the motor running, make sure water is circulating while looking thru the rad cap hole.

 

What mods are on it, and what jets are in it?

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The stuck in 1st problem could be that the eccentric screw lock washer allowed the nut to loosen and the shift shaft came out of adjustment.

 

When you get it started does that noise reappear?

Okay so it doesn't want to go in 1st but it'll go in 2nd and the rest nothing... it like holds you back when your gonna go to switch gears and it'll just bog down.. I'm trying to explain it as best as I can, because it's my cousin who has the bike so I m not really sure
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With regards to the shifting problem, I'd drain the water and gear oil and pull off the clutch cover and see if it's actually the shifting mechanism or it's in the transmission.

 

And get a clymers manual or dig around here for the Yamaha service manual in PDF.

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Airbox and lid?

 

If so, at that elevation I would think jetting needs to be 25 pilot, 1-1.5 turns out on air screws, 250 mains (verify with true plug chop) and needle clips in the middle groove to start.

 

Verify that a rubber hose runs between the two carbs and connects the right carb to the left carb inline with choke plunger.

The left carb has the choke plunger.

The right carb choke circuit is connected to the left carb choke circuit with a rubber hose.

Without the rubber hose, only the left carb is choked and adds more fuel during cold start. 

 

Once you verify a plug chop for the mains, I'd try the needle clips in the 4th groove from the blunt end of the needle.

Groove nearest blunt end is #1 and groove closest to pointed end is groove #5.

 

I still think the clutch cover needs to be taken off to see if anything is obviously wrong with the shifting mechanism.

 

Does this bike still have the TORS and parking brake systems installed?

If so, remove that crap.

They only complicate trouble shooting and when the parking brake and/or TORS system fails it makes the bike a PITA.

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