throttle body fault ?

[turnipbmw]

am told the reason my bike was only running on one cylinder at tickover/low speed was that it has a faulty throttle body

anyone heard of this before ?

Was going up hill on large throttle opening and it suddenly lost power, i.e it suddenly happened.

Is being done under warranty but I want to know more for future reference.

 

[DrFarkoff]

There's a stepper motor on each body that adjusts the air flow at tickover

I would have thought these were a serviceable part or at least a component part separately available

 

[turnipbmw]

am told that I have to wait 7-10 days for the part to arrive

 

[DrFarkoff]

Part 2 13547672966 idle control device BUY 2 $162.09

 

[Pukmeister]

I can't see much within the throttle body that can fail other than the idle steppers. It's only a butterfly plate and spring?

Throttle position sensor or fuel injector perhaps.

 

[(RIP) Kaister]

item 2 looks like an idle bypass valve.

can't see how it would affect full throttle at all.

 

[Pukmeister]

Exactly what I was thinking, hence the faulty TPS or injector comment.

No throttle position feedback could be pretty difficult for the fuel injection 'brain' to deal with.

 

[turnipbmw]

decided to not mess around, bought a new bike today.

3 month old 1200GS £8000.

seems a good deal

old one will be on E bay when it gets back from Morocco

(assuming its fixed ready to go of course)

 

[(RIP) Kaister]

jeez - the tyres are getting a bit low on mine - should i get another one too ?

 

[turnipbmw]

yes, especially if it needs petrol as well.

(new bike comes with full tank and years tax even though it had 9 months left)

 

[DrFarkoff]

item 2 looks like an idle bypass valve.

can't see how it would affect full throttle at all.

am told the reason my bike was only running on one cylinder at tickover/low speed was that it has a faulty throttle body

?????????????

 

[Pukmeister]

Was going up hill on large throttle opening and it suddenly lost power, i.e it suddenly happened.

So it happened suddenly at a large throttle opening, and now it won't idle smoothly on both cylinders. I can see how an idle stepper could ruin idle, but at large throttle openings even with the idle bypass circuit wide open I doubt it would fuel so badly as to lose much power ?