Pumping it up!

[The Stranger:Me]

My bike has modified jetting - stock is 105/110 size main jets - now it has 145 mains.

it only empties at full tit at 14-15000 rpm - when it would be useing the most i imagine.

You need more head.



My 750 was sweet so long as the tank was over half.

[Mrs Busa Pete]

[QUOTE=The Stranger;1871996]You need more head.



What are going to give it to him

[Squiggles]

just running really lean.

Careful, That'd make me right a couple of months ago

[motorbyclist]

so i guess in the end it wasnt draining the carbs, just running really lean.

so perhaps an air filter would be a good solution to this problem, along with ensuring you bike survives the next 10000km?

[The Pastor]

Careful, That'd make me right a couple of months ago

nah you'd be right a few months ago - but it wasnt running as lean as it was with bigger jets in it!

[The Pastor]

so perhaps an air filter would be a good solution to this problem, along with ensuring you bike survives the next 10000km?

thats just silly talk!

[motorbyclist]

thats just silly talk!

of course what was i thinking



perhaps just adapt a pod filter to the end of all the trumpets then? sounds much more difficult than simply chucking a standard airbox back and still sounds like a performance mod

[The Pastor]

problem with that is the carbs are too close together for pod filters - oval ones would work but @ $120 each - and I need 4, its way to expensive.

But on the cbr250, sweet FA can get into the air intake area, no masive gaping holes etc.

Im looking at making a filter of some sorts, just enough to stop big stones / washers and bolts from going in etc.

If it was a naked bike or had some big air intakes that collected bugs etc i'd be more worried, but it doesnt, so im not

[motorbyclist]

problem with that is the carbs are too close together for pod filters - oval ones would work but @ $120 each - and I need 4, its way to expensive.

that's half the challenge mate!

where's your sense of adventure?

[The Pastor]

ive had pods on it before, they didnt give me the power i needed

[motorbyclist]

right, so cutting out at 11 is the power you need?


doesn't matter too much, but when blue smoke comes out and you find new rings hard to find, remember - i told you so

i learnt the hard way too

[The Pastor]

its running fine now with the trumpets mate

dont worry a rebuild is all part of the plan