erratic idle

[theBarzeen]

last week I started having problems with my idle....

the bike will start normally, ride normally, but after the bike has warmed up some and especially after a few minutes of riding at one throttle position ( keeping at 2800 rpm for example) the idle will do one of two things...... it'll either:
1) stay up between 1500 and 2000 rpm steady ( was kinda nice when I had to get on to the highway..... 5th gear with no hands = 55 mph)

or

2) sweep from 1300 rpm -1700 rpm - 1300 rpm etc.....

usually if I shift to neutral after a few seconds it'll go away


I took the bike in for new brakes and a fluid change and asked them to check it out...... they couldn't get it to do it again, and the ecm had no codes stored in it...... no tps codes, no crank angle sensor codes......



no tuneboy, bike is 2005 and stock save for the jardines and secondaries removed......

if the tps is going it'll throw a code right?

what else could it be?

idle stepper motor? vacuum leak? demonic possession?

keep in mind.... I took my bike in for an oil change and brake pads..... I could probably do both of these myself but it would take all **** day..... that's where my prowess with a wrench ends.........

 

[Navigator]

I had the same symptoms and then the idle went down to stall. Triumph replaced both the stepper motor and the TPS.

 

[Billythebiker]

I had same problem and was cured with the TPS removed, though what I do get now (when the bike isn't wrecked) is a stuttering of power at constant speed!!! :?

 

[MountainMan]

Since I leave all my mechanical thinking to the likes of warp9.9, I have to go with demonic possession.

Go straight to church and climb the steps on your knees while bemoaning your past sins against the motorcycle gods.

And stay away from the splitpea soup.

 

[owl]

Could be a leak on your vacuum tubes

Could be a sticky idle stepper motor

Could be the primary tps on the way out

Could be the crank angle sensor needs cleaning.

Anyone think of anything I've missed out?

 

[NativeOne]

Could be a leak on your vacuum tubes

Could be a sticky idle stepper motor

Could be the primary tps on the way out

Could be the crank angle sensor needs cleaning.

Anyone think of anything I've missed out?

Ask her indoors, she might know! :lol:

Native One

 

[owl]

Beast :lol:

 

[theBarzeen]

Since I leave all my mechanical thinking to the likes of warp9.9, I have to go with demonic possession.

Go straight to church and climb the steps on your knees while bemoaning your past sins against the motorcycle gods.

And stay away from the splitpea soup.

I tried placing my hand on the headlights and yelling " devil be gone!" ..... results inconclusive.....

and Owl, which of those will cause no codes to be thrown?

 

[MountainMan]

Since I leave all my mechanical thinking to the likes of warp9.9, I have to go with demonic possession.

Go straight to church and climb the steps on your knees while bemoaning your past sins against the motorcycle gods.

And stay away from the splitpea soup.

I tried placing my hand on the headlights and yelling " devil be gone!" ..... results inconclusive.....

That trick only works for the pure of faith, barzeen. Obvoiusly you also need to head straight to a house of worship to confess your sins. And if you choose self-flagellation, be sure to limit that option to your back or you'll have to confess to a whole other list of sins.

 

[Blastedbones]

Classic TPS symptoms..IMO. get em to change it & see what happens.