FZR250 New bike and a few questions

**McFatty1000** · 8th March 2013, 14:29

Ok, managed to fit the pack rack (amazing what a crow bar will let you do) and thats going well.

Next problem is, a fuel leak!
Yes, another one, noticed the fuel consumption steadily going up the last few weeks but put it down to the change in travel conditions (Only ~5km one way, in slightly heavier traffic) but today I saw a few spots underneath the bike after I'd filled up and could see vaguely where it was running from.

So, given my two minute look at the station, I think its a hose or maybe a connection to the bottom of the tank/ and or petcock. Where can I get replacement hoses if it is just something like this? Repco? Or will it be a visit Yamaha to get specific model ones?

Tomorrows job if I get time.

**ducatilover** · 8th March 2013, 15:13

If it's just teh hose any auto parts place will have lengths of it.

**The Reibz** · 9th March 2013, 18:57

The FZR250 has a overflow hose that exits under the tank down by the shifter.
Are you sure you just didn't over fill the tank?

**McFatty1000** · 9th March 2013, 20:52

Originally Posted by The Reibz

The FZR250 has a overflow hose that exits under the tank down by the shifter.
Are you sure you just didn't over fill the tank?

This may have been it...

So thats good, If not slightly embarrassing.

While I had the tank off though, thought I'd do some learning so took the air filter apart and washed out in petrol (just a foam one), took the carbs off to find anything else and came across this:

These are the rubber manifolds underneath the carbs, thinking the cracking may have something to do with the bike not always running 100%

Know where I could get some more?

**McFatty1000** · 9th March 2013, 20:54

Also, just to not sound too noobish, the overflow hose has been removed so the petrol just drips from underneath the tank, which is why I thought it was leak as such

**The Reibz** · 9th March 2013, 21:05

Go get a bit of fuel hose for the overflow bro, you don't want that shit dripping on a warm engine. Alternatively you could stop filling your tank so high lol.

I can tell you a Yamaha dealer will charge you roughly $110 per rubber boot. I owned a 3ln for roughly 5 years and I can tell you that all dealers will go right out of there way to be as unhelpful as possible when it comes to FZR parts. I have a 1988 FZR1000 and have to order everything from overseas for it. Some parts don't even exist anymore.

Those boots are cracked up a bit, I have heard on the grapevine of a solution you can soak them in that seals them up. Have never seen it with my own eyes though.

Hope you get it sorted mate, best thing for it is a carb clean and a reshim of the valves. I still miss riding my old one...

**McFatty1000** · 9th March 2013, 21:16

Yeah, its on the list, although, compared to the amount of petrol that was dripping on the engine when the carbs were leaking

I had her in the shop about 5-6 months ago getting the carbs cleaned/all the rings etc done, had the airbox to carb boots replaced but they didn't say anything about the bottom ones (Feeling slightly annoyed with that). Those cost 120 all up, so I'm hoping these ones are similar. Emailed a few places so hope to hear on Monday

Do you think the carb balance will be knackered when I fit new ones? Haven't done that myself yet so hoping it'll be ok until I can get a hand from someone who knows what they're doing

**The Reibz** · 9th March 2013, 21:23

To be honest with you bro, the only boot that looks like it could cause you issues is the one on cylinder 4. Thats just from looking at the photos. Any that have full penetrating cracks should be replaced or crudely repaired with some filler like I did with my ones lol.

Wouldn't hurt doing a ballance but I dont think changing the boots would make much of a difference unless its a major leak (and you would know if it was)

**McFatty1000** · 9th March 2013, 21:29

Yeah, they all have straight through cracks bar one? And ok, the bike does sometimes just refuse to go above idle, so thinking this might be the start of something I need to get onto pronto.

Winter will be good to get things done at least

**nzspokes** · 10th March 2013, 05:05

After a ride, let it idle and squirt CRC around the boots. If the idle changes then you have a leak. Then get new boots. If you don't you can over lean the motor and seize it.

Look on e-bay for the boots.

**McFatty1000** · 10th March 2013, 14:29

Originally Posted by nzspokes

After a ride, let it idle and squirt CRC around the boots. If the idle changes then you have a leak. Then get new boots. If you don't you can over lean the motor and seize it.

Look on e-bay for the boots.

Seize it? Wouldn't it just die from not enough fuel or am I missing something else?

**nzspokes** · 10th March 2013, 14:51

Originally Posted by McFatty1000

Seize it? Wouldn't it just die from not enough fuel or am I missing something else?

Yes, long run on lean will do damage.

**Fizzer250** · 20th April 2015, 12:26

Originally Posted by McFatty1000

Seize it? Wouldn't it just die from not enough fuel or am I missing something else?

Hello MCFATTY1000.
I have also picked up a FZR 250 2kr (same engine as yours) which is suffering the exact same symptoms. It has been in a shed for a year or 2 exactly like yours. Whenever i ride more than 10 minutes or so and stop at a set of lights the bike decides to idle below the normal idle revs and stalls. The throttle becomes almost totally unresponsive and I have to wait 5-10 minutes before it is able to start again which it does back to running normal again...
I have only been for about 3 rides on it so far and i don't know what it wrong? I've found your forum and want to know did you identify the issue?
Please help me if you can??!! I see that there are a number of cases like this on the internet so we aren't alone but they don't name the problem.
Did just running it more remove the problem??
P.S. I am in Christchurch too.