Hi Folks,

I wondered if anyone else has had this problem and found a fix?

I have a standard 2006 4rt, no silly ignition maps or owt like that, but the spark plug is getting sooted(spelling?) up something bad. It looks as tho it's running rich. The bike starts to run rough after a couple of events and tick over is noticeably lumpy and stalls more easily as time goes on.

I run on 98 octane fuel (more often BP fuel) and have use both puterline and pj1 filter oil to coat the standard air filter.

the next thing for me to try is 95 octane fuel.

After that I'm at a slight loss as what to try next.

cheers

Leigh

Hi Folks,

I wondered if anyone else has had this problem and found a fix?

I have a standard 2006 4rt, no silly ignition maps or owt like that, but the spark plug is getting sooted(spelling?) up something bad. It looks as tho it's running rich. The bike starts to run rough after a couple of events and tick over is noticeably lumpy and stalls more easily as time goes on.

I run on 98 octane fuel (more often BP fuel) and have use both puterline and pj1 filter oil to coat the standard air filter.

the next thing for me to try is 95 octane fuel.

After that I'm at a slight loss as what to try next.

cheers

Leigh

Hi

Had the same problem.

cure is simple

run the engine ticking over until the fan comes on

i was replacing the plug every 2-3 months

now i have had the same plug in for the last nine months

hope this helps

Edited August 30, 200718 yr by rapid roy

Many times plug fouling on the 4RT is a result of having started the bike when COLD and then very soon after shutting it off without giving it a chance to warm up properly.

Always let it come up to operating temp (2 min) when starting from cold.

Cheers Guys

I think it must come from when riding the first lap of a trial, Get to section switch off, walk the section, start bike just before rider in front starts the section, ride section, ride to next section.....repeat etc . Not so bad, I suppose laps 2 through to 4 unless you're queueing up at a section.

I think I'll fire it up sooner before riding the section so it's warmed up properly. And maybe let it tick over while queueing up.

thanks

Leigh

Sorrry Leigh, I don't think that that is it. It should be warmed up by the time you hit the first section. It only happens when starting it from COLD and then shutting it off.

Artie

Sorrry Leigh, I don't think that that is it. It should be warmed up by the time you hit the first section. It only happens when starting it from COLD and then shutting it off.

Artie

So it's starting it from cold and not letting it run till warm and switching off before warmed up i.e. fan comes in??

Edited August 29, 200718 yr by SVLeigh

I let it warm up for 2 mins and after that it is fine. I do not touch the throttle ether during the warm up. I have had no problems with it.

I recall being told this when I got it, I just got out of the habit of letting it warm up fully first. Doh . I been letting it run for about a minute at most. I'll give it a bit longer till the fan cuts in and see how I fair from there.

Once again thanks for the advice

Leigh

Edited August 29, 200718 yr by SVLeigh

Same problem, i have made a larger air-intake problem solved. Thanks to Jo4RT

So it's starting it from cold and not letting it run till warm and switching off before warmed up i.e. fan comes in??

EXACTLY !

Hey Fantic303,do you plan on making anymore of these larger air intakes to sell??

What other benefits have you found fom this mod??

Regards Benz.

Same problem, i have made a larger air-intake problem solved. Thanks to Jo4RT

That looks pretty cool, does it still use the 4 fixing points or just the 2 we can see from the picture?

how much did that cost to make??

cheers

Leigh

That looks pretty cool, does it still use the 4 fixing points or just the 2 we can see from the picture?

how much did that cost to make??

cheers

Leigh

Yes it has 4 fixing points just like the original.

Bisides the larger intake opening to get easier much more air with less resitant to the airbox for a nice colored spark it is stronger, it doesn't bend.

I don't make this things for selling it. You have an example and perhaps you make it by yourself.

That looks pretty cool, does it still use the 4 fixing points or just the 2 we can see from the picture?

how much did that cost to make??

cheers

Leigh

Yes it has 4 fixing points just like the original.

Bisides the larger intake opening to get easier much more air with less resitant to the airbox for a nice colored spark it is stronger, it doesn't bend.

I don't make this things for selling it. You have an example and perhaps you make it by yourself.

hi

were can you buy sheets of air filter foam.

do you need the anti flame wire cage or is it mounted below

cheers

couldnt you just make the hole bigger in the stock item ?