Fuel Consumption 2-stroke Vs 4-stroke

[luct4]

Hello

i was wondering iff a 2-stoke needs more fuel to ride the same track as a 4-stroke trial.

I had a Rev 3 4-stroke and ride now a Rev 3 2-stroke and think that the 2-stoke

fuel consumpion is a lot more. Is that correct?

Greathings

luc (the belgium rider)

[tony27]

My experience of the Rev3s would have to be that they use quite a bit more fuel than anything else, mind you a fair amount of that is from the overflows

When we go trailriding the guys on betas normally take & use 3litres of extra fuel where my sherco 290 comes back with 1 of the 2litres extra still in my pack

Guess it depends on the bike & rider really

[smalley250]

My mate always had to keep an eye on his fuel in his 4rt. Not sure on how much a 4rt standard tank holds but me Gasser 300 seemed to go further or i just worried less.

I would guess a 4 stroke should be better than a 2 stroke. I believe some lorries back in the eighties were 2 strokes.

[luct4]

I still need to modify the overflow and see iff that's realy going to help.

I have noticed that the fuel consumption from my Rev 3 2 stroke

was mutch more than the GG off my friend.

[lightfeet]

My mate always had to keep an eye on his fuel in his 4rt. Not sure on how much a 4rt standard tank holds but me Gasser 300 seemed to go further or i just worried less.

I would guess a 4 stroke should be better than a 2 stroke. I believe some lorries back in the eighties were 2 strokes.

Those two bikes are exactly the same as what me and my mate ride, the 4RT has a tiny tank of 2.1 Litres, and the gas gas of his has a 3.2 Litre tank. When we both go out for the same amount of time if I say stick in a litre to top up he's putting almost a litre and a half in to top up. The problem with, as you say "Keeping your eye on the fuel" in a 4 RT doesnt lie in it not being good on fuel its because it has a small tank and with it being electonic fuel injection and therefore having a pump, there is no reserve so you get no warning at all it just dies. Whereas on a two stroke you have a nice reserve setting on the fuel tap which is always enough to get you back. Personally id like to see just a small LED fuel warning light on the new 4RT it wouldnt take much in weight or technology.

[dixie]

On trials engines because the two strokes arnt high revers, the difference is not that great, all the modern bikes have tiny tanks,and all last about 2 hours, having said that my betas allways seemed quite thirsty..

[luct4]

F*****CK I HAVE A BETA REV 3 AND HE DRINKS A LOT....

[nzralphy]

My Rev4T gets approx 10-11km/l

[smalley250]

I have a gasser 300 and its way better than the Beta 250/270`s i had. I think the carbs are or was poor even after mods. Montesa 315r had a small tank yet i did ok on the jackwood and scott managing to get to fuel stops with out using the spare 500ml can i carried.

[luct4]

I was wondering iff it would be better afther putting a dellorto carb. on the Rev 3?