Stalling

Yes it's bogging down when you do that, and that's because it's running rich.
My bets are on the float levels.

As for the really hot day thing... that seems to be bit of a weird one.
Perhaps the bike is in it's optimal operating temperature half way up the thermometers indicated range.
Perhaps your air filter is a little clogged with oil and gunk and a hot day makes it softer allowing more air through.
Perhaps the little engine dwarfs are happier in a nice tropical environment and can peddle faster at that temperature.

Those suggestions were getting more bizarre as they went on... might want to start with what you know (running rich) and work from there.

PS. Don't ride the bike in that low a rev range, it's bad for the bike. If you haven't read all the posts regarding carbon buildup then you should be keeping the bike above 7k at a minimum. Combined with the problem of running rich, you may end up running into problems with valves not sealing due to carbon buildup.

 

Not really.

Checking float levels means pulling apart the carbs and measuring the float level from the reference line on the outside of the carbs (i think it was the reference line!). Not something you really want to do unless you can name all the parts inside a carby; aswell as clean and reassemble them without having to say 'i think that goes in there'. <!-- s --><img src="{SMILIES_PATH}/icon_cool.gif" alt="" title="Cool" /><!-- s --> <!-- s:lol: --><img src="{SMILIES_PATH}/icon_lol.gif" alt=":lol:" title="Laughing" /><!-- s:lol: -->

 

Sounds like you need a carb overhaul, clean and balance.
Make sure this includes things like float heights.
On the other hand could just be your needle's are worn beyond all hope and they probably need replacing - how many km's on the bike?

Oooh, and be sure to take it to a mechanic who know's FZR's well otherwise they won't dare touch the float heights. <!-- s --><img src="{SMILIES_PATH}/icon_sad.gif" alt="" title="Sad" /><!-- s -->

 

If your doing some slow riding training, stick it in second and bounce the bike off idle. Atleast that way you won't be bogging the bike down and minimise the chance of fouling the plugs, etc.

The black smoke thing sounds like one of your valves wasn't closing properly allowing fuel to escape through the inlet and giving poor compression on one cylinder. The smoke probably stopped when the valve seat was freed of the carbon/crud resulting in proper compression in that cylinder and therefore more power. That said, a valve doing something like that is likely to burn out in a very short period of time and needs attention if it does it again.

 

Whilst practicing your low speed manouveres, what i used to do was find a car park and just sit in second gear and idle around... then start doing the manouveres like full lock circles and figure eights etc.

 

The problem with doing low speed manovers at idle in second is that sometimes you need a burst of power (particularly when the bike starts tipping over too far and you need to pull it up again). At idle in second you've got nothing, and you'll have to put your feet down to stop it falling over (which may or may not be successful).

Try riding around in 1st at ~8k rpm while slipping the clutch and using the rear brake to control your speed.
They would've taught you this at the stay upright course. At low speeds you shouldn't use the accelerator or clutch to control your speed, but should maintain constant throttle and clutch, and use the rear brake instead.

Need to go faster, release the brake. need to slow down, put it on more. Master this and you'll find the P's test a lot easier... it also means you can go slower without under-revving the engine.

 

Congratulations. Trust me don’t think too much about 'the countdown' or it will go on forever, mine is still going. Just enjoy the fizzer as much as you can to develop your riding.

 

Well done <!-- s --><img src="{SMILIES_PATH}/icon_cool.gif" alt="" title="Cool" /><!-- s --> <!-- s:-| --><img src="{SMILIES_PATH}/icon_bike.gif" alt=":-|" title="Bike" /><!-- s:-| -->

 

Congrats