Project Cibby Project

Well I've looked at mine and it may be a chinese replacement anyway... don't know they look exactly the same. For the sake of $16 I'll take a gamble anyway see what it does. No way I'm paying $200, that's just a rip.

 

So things seem to be OK, bike's just about ready for a RW. Haven't got the replacement reg/rec yet but I don't think it will stop me getting it registered.

@kiffsta I will have to take the readings again, all I can recall is that between two of the phases was 7VAC while the other two were around 10-12VAC. At higher RPM it sorta replicated that difference so I wonder if one of the phases has something wrong with it. Nothing going to ground though.

One niggly thing though, the pilot I set at 2 turns out as I though that was standard. When the bike is idling and I rev it, for the first 3K or so it sorta hesitates and cuts out, but I can make it rev pretty hard at higher RPM if I push past the low end. It's got good spark so I'm pretty sure it's a fuel issue. I've read through all the manuals I can find (CB250N, CB250 nighthawk etc) and not sure what pilot screw setting (default) is accurate for this particular bike (CB250Y). I imagine it would be similar if not the same as other models. I suppose I should take it for a ride and see if the problem persists, maybe this bike just likes to be warm first. After that I can try and "tune" it via the RPM, interestingly one of the manuals spoke about hooking up a tachometer with a tolerance limit for testing.... reminds me of another experiment I undertook...

 

Well I found out what it was... this bike just hates being cold! Bit more warming up and issue is gone completely.

 

Back on the road now, and melbourne weather sucks again. Typical!

 

Here's one that is puzzling me. Did an oil change, put 1.5L in just like the manual says. Check the level - all good. Go for a ride. Come home check the level when warm and the dipstick is completely dry. Now I know there is oil in there... it hasn't gone anywhere and isn't leaking.

So WTF?

 

Now I’m really confused. This morning I decided I’ll put in a bit more oil to see if it shows on the dipstick so I put in around 150ml more. Ran the engine for 3 mins like the manual says… nothing – dipstick is still dry. There’s oil in there, nothing leaking…

Rode to work, after a good run check the dipstick. About 1/4 full. Strange… and the thing won’t go into neutral while the engine’s running.


So what have I got here, liquid lock of some sort in the clutch and the incorrect dipstick..??

 

No sight glass, only the dipstick. I think I might have to drop the clutch cover and sump and see what is going on. The clutch is really springy and firm too.

 

1.6L came out of the sump... and I put it back in again (new oil anyway). I think that dipstick may be the wrong one, but I also noticed the service stand isn't level so the combination of the two may be the problem.

Some careful checking and it I know I've got 1.5L in there now so at least that keeps me going.

 

So... nothing much to update, bike runs good. Thinking of pulling the baffles out though... make it more beastie.

Anyone had one of these where the choke pulls in by itself? It's basically a knob that you pull out... this engine doesn't like being cold but a km or two down the road and the choke is magically off as it creeps back in without me touching it. I find it weird but maybe it's meant to do that who knows.

 

Thanks Murdo... which rubber are you referring to exactly?

 

Ah I see... I didn't know that was the function of the rubber I thought it was just a cover of some sort. Cheers I'll look into that.

 

Well after everything I've been through with the Honda, I took a deposit to say goodbye in the next couple of weeks. Given the exhaust is modified I need to get her noise tested then a RW.

You know it's funny because every bike I've owned has some sentiment. This old girl is slow and gutless but smashing her in and out of traffic has brought me some good memories.

Never forget the cruisy ride, took her to a club meet today and I think that will be the last one until I get the F400 or the F250 back on the road over Chrissy.