FXR150 - engine dying at random!

[Rick 52]

I have been running 12-49 but I hit the rev limit in two places on a good lap Tim runs 12-47 and is ok so we think 12-48 is the one.Gavin uses12-49 but runs without the rev limiter.I used the mt wellington gearing for Roys hill but that only worked for half the track the infield was wrong ,Tim's set up seemed better so 12-45 could be the go for Roys Hill..

[Henk]

Running 12-45 on mine. Seemed OK for Roys Hill although I probably should have gone down an extra gear at the top of the hill to get more drive out of the hairpin.
Seems to work OK at Mt Welly as well although having only run it there for one meeting I may change my mind with the change of direction.
Hasn't led to any extra gear changes running anti clockwise, shift points on the sweeper / straight are a little earlier but there is a bit more stomp out of corners over 13 - 45 which is nice.
I'm not running at the sharp end of field though so your mileage may vary.

[all4A50s]

Hi all, a while ago I posted this thread as my engine kept cutting out and I thought I needed a new ignition barrel:http://www.kiwibiker.co.nz/forums/sh...gnition-barrel

Since then the bike has died a couple of times but I have managed to start it straight away. Today it died on me (in the pissing bloody rain) and I couldn't start it again immediately. In accordance with Murphy's Law - after organising someone to come get me I managed to crash start the bike and get home.

My question is; what are the possible causes of the bike dying randomly but eventually starting again? The bike does live outside so there is a chance that it could be corosion or something like water egtting where it shouldn't
My thoughts are:

• possible faulty ignition barrel
• dodgy electrics
• water in the carb or other engine parts
• where's the beer???

Anyone else shed some light on what it could be, or what I should check? Poor Malcolm is trying to get his own bucket sorted for the weekend!

So did you discover the issue(s)?

[Damien_Toman]

I ran the road-standard original sprockets (14/49 - 2003) at Roy's Hill, Mt Welly and Hampton downs. It feels much better than the 12/49 I used before at Mt Welly. It should also do me for Taupo - so no sprocket changes . I run std FXR rims so the tyre profile is a factor in the gearing.