What fuel?

[Blinkwing]

Put 98 in for the first 4 months of owning my VL250, now I just chuck in 91 ...

[Evilelmo]

hey guys i no im late to this thread but i got a 1990 CBR i find if i chuck in 95 it runs a bit rich like u can smell the gas but on 91 it runs sweet do i need to get it tuned or narr???

[sinfull]

hey guys i no im late to this thread but i got a 1990 CBR i find if i chuck in 95 it runs a bit rich like u can smell the gas but on 91 it runs sweet do i need to get it tuned or narr???

I find most bikes need a tune now and then, at least a carb ballance.
Just be wary of mobil 91 or gulls feul as it has ethanol content which can deal to seals in alot of older vehicles mobil 95 still hasn't any ethanol and BP 91 clear also .

[Evilelmo]

thanks guys ill remember not to fill up with those... one other thing how does one go about tuning the carbs??? get one of the boys at cycle tread to do them or who would be better????

[GOONR]

thanks guys ill remember not to fill up with those... one other thing how does one go about tuning the carbs??? get one of the boys at cycle tread to do them or who would be better????

I had George from Motorcycle Doctors do mine, awesome job and a keen price too.

[Newo]

I run 91 in my '88 CBR 250.

The previous owner told me that's what he always used, and the owner before him. I've never had any issues and I average 200k's plus on a tank (plus reserve).

Speaking of reserve seeing as we are on the topic of fuel. Do many of you use your reserve fuel? I've always wondered if its a good idea or not letting it just sit there only for emergency. Sounds silly worded this way, but will it go off after a while?

I think last I took my bike to the mechanic he said it could use a carb clean/balance or what ever. Havn't done it yet but probably should. Then again you never know if a mechanic just wants a few extra dollars in the bank you know?

Not being an expert on automotive engineering myself I wouldn't know better if a mechanic told me such and such needs doing.

That's something I'm working on though. I'm keen to learn everything I can about what keeps a motorcycle ticking.

[Latte]

I run 91 in my '88 CBR 250.

The previous owner told me that's what he always used, and the owner before him. I've never had any issues and I average 200k's plus on a tank (plus reserve).

Speaking of reserve seeing as we are on the topic of fuel. Do many of you use your reserve fuel? I've always wondered if its a good idea or not letting it just sit there only for emergency. Sounds silly worded this way, but will it go off after a while?

I think last I took my bike to the mechanic he said it could use a carb clean/balance or what ever. Havn't done it yet but probably should. Then again you never know if a mechanic just wants a few extra dollars in the bank you know?

Not being an expert on automotive engineering myself I wouldn't know better if a mechanic told me such and such needs doing.

That's something I'm working on though. I'm keen to learn everything I can about what keeps a motorcycle ticking.

The reserve and main feed out of the same tankk, just the reserve pickup is lower in the tank, so the fuel used when switched to reserve is the same as when it's swithced to on.

[Gremlin]

I used reserve quite often, to make sure the line/tap etc were in working condition for when you really needed it.

Just make sure that you remember you're on reserve, when you're getting amazing mileage before "reserve" aye? There ain't no second reserve

[superman]

I run 91 in my '88 CBR 250.

The previous owner told me that's what he always used, and the owner before him. I've never had any issues and I average 200k's plus on a tank (plus reserve).

250cc's should not have worse economy than a 2 litre car or something is bloody wrong

[SMOKEU]

250cc's should not have worse economy than a 2 litre car or something is bloody wrong

Fuel tank size...

[superman]

Fuel tank size...

I was under the impression they had at least 14L tanks... which would make 200km worse than a 2 litre car.

[SMOKEU]

I was under the impression they had at least 14L tanks... which would make 200km worse than a 2 litre car.

My CBR250 drinks around 4.5L/100km. My old 2L car drank 16L/100km when driven sedately.

[superman]

My CBR250 drinks around 4.5L/100km. My old 2L car drank 16L/100km when driven sedately.

Oh I see, 4.5L/100km is over 300km per tank. Which sounds much better

[SMOKEU]

Oh I see, 4.5L/100km is over 300km per tank. Which sounds much better

I don't get anywhere near 300km per tank. It hits reserve at around 220km usually and I don't push my luck with the reserve. I normally fill up every 200ish kms.

[KiWiP]

There ain't no second reserve

Depending on your tank shape you may be able to lean it over to get the dregs from the non tap side. Though if you have to resort to this your planning ahead is rubbish