02-04-15, 09:24 PM
(02-04-15, 09:42 AM)fazersharp link Wrote: [quote author=Gnasher link=topic=16445.msg189422#msg189422 date=1427927000]
[quote author=rhinoeli link=topic=16445.msg189382#msg189382 date=1427911690]
Had similar symptoms. Bike lost power at a certain rpm (around 6000). One jet was blocked. A good carb-cleaning did the job for me.
:agree
If the bike is used very infrequently it's very likely one or more of your jets are indeed blocked.
[/quote]
Why would low use lead to blocked jets ---- is it to do with old fuel varnishing.
My bike has low use and I always make sure it has fresh fuel by coming back home needing a fill up so that when I ride next I first have to put some petrol in but only enough for the ride am about to do so it dosnt sit around with the old fuel from last time.[/quote]
In my opinion fuel varnishing blocking jets is a bit of a myth, when varnishing happens and it's in the extreme it leaves a layer i.e. a varnish coating it doesn't block. What can and does happen is the thin layer is disturbed and this then can block a jet.
What I've seen is more to do with rust and contamination particles from the tank, fuel lines, old fuel cans, pipes or garages which tends to be worse on bikes that are not used often. The fact fuel isn't flowing or being used allows all these particles once in the tank to sink and form a layer, you then ride the bike the layer is disturbed and the fine particles are drawn into the carbs. And yep they blocks the jets.
The fault is often the tank it's self or fuel lines/filters then check the fuel your putting in. Another myth in my opinion is fuel going stale I've had many bikes over the years, with more than one at a time to one/s I wasn't using that have stood all winter, even a couple of years with the odd run up every couple months and they've fired up and run with no problems.
Later