Stalling issue
 

Hi all,

Bit of a stalling issue,

bike starts and idles fine, seems to run fine,

the problem seems to happen when slowing down to come to a stop, then the bike will some times stall once stopped, or if I slow down to do a sharp U turn the bike will stall as I'm tipping in to do the turn.

Just wondering if any of you knowledgeable guys might have some suggestions of what may be causing this, as I've got no confidence at the moment riding as I never am sure when it may stall when stopping at intersections etc !

I have the idle set at around 1500rpm, 91 unleaded fuel.

Try relocating the carburetor float bowl vents so they are pointing down. Chances are they are still in the stock position, which is the free end poked through a hole in the bracket that connects the carbs together. I think there was a service bulletin many years ago to correct this problem.

Thanks for the reply,

yes I was thinking the same thing, may give that a try this weekend, while doing so, I may swap the plugs while I'm at it.

Bit of an update with the stalling issue,

I'm no mechanic, I just try different things and see what works and what doesn't,

seems like the problem is fixed, these are the things I did/tried to fix the stalling,

Firstly, I pulled out the hoses under the carbs,

Attachment 32551

took off the rubber bands,

Attachment 32552

and put the hoses in a downward position, not really sure if this is correct, but didn't seem to have any effect, didn't make things better or worse !

Attachment 32553

Attachment 32554

Next, thought I would investigate the TPS, see what it was set at !?

Tank up,

Attachment 32546

open up the air box to remove the air filter,

Attachment 32547

Attachment 32548

this is when I discovered that the carb filters were badly deteriorated and would probably take a few weeks to get new ones,

so, thought I would for now, make some out of lawn mower pre-filter and a squirt of K&N filter oil to get me by until I can get some new filters,

I just made a paper pattern, then cut out the foam filters,

Attachment 32549

Attachment 32550

Then onto the TPS,

Attachment 32539

removed the security Torx bolts and replaced with Allen head bolts,

Attachment 32540

got out the multimeter and connected to the top and middle pins,

Attachment 32541

had a reading of 830,

Attachment 32542

adjusted the TPS anticlockwise until I got as close to 500 as I could,

Attachment 32543

then back together it all goes,

Attachment 32544

and with my DIY filters sprayed with a little K&N oil,

Attachment 32545

Pulled the spark plugs while I was at it, didn't have new ones on hand, but did have an old set that I cleaned with some carb cleaner and put those in until I get some new ones that will go in with the new filters,

rear plug seems dirtier that the front plug, but the cleaned up plugs should be better than the dirty plugs I'm thinking !? :popcorn:

rear plug with cleaned up old plug,

Attachment 32536

front plug with cleaned up old plug,

Attachment 32537

Attachment 32538

Been for three decent rides,

Carb cough has basically gone, did it once on the first ride and hasn't done it since,

hasn't stalled once so far, touch wood :rolleyes: ,

TPS adjustment is amazing, bike is running so much better, smoother, feels like more power, bike wants to lift the front with harder acceleration,

so I'm hoping this has fixed my problems, and maybe helps some one else having similar issues, possibly try some of the things I tried, adjust your TPS, check carb filters.