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+--- Thread: FZS 600 Loosing power, cutting out and backfire --- HELP ME!!! (/showthread.php?tid=78546)
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Re: FZS 600 Loosing power, cutting out and backfire --- HELP ME!!! - Val - 06-09-17
After you finish with the air filter cleaning, check you may have tank breather hose clogged. Although on most Fazer I've seen the breather hose has been completely removed long time. Check yours. When the bike dies pop the gas cap. If you hear a "whoosh" noise like air being sucked into the tank then you'll have to clean out the breather.
Finally check carb vacuum hoses. Not enough vacuum will have the same effect at high rpms.
Re: FZS 600 Loosing power, cutting out and backfire --- HELP ME!!! - siedlik - 05-02-23
(04-09-17, 11:08 AM)adeejaysdelight link Wrote: I've been up to my eye's with work stuff. Hopefully get a look at the bike during the week. The air filter is a K & N, dunno if that makes a difference. It's been in there for years though. It was one of the first things I did to the bike. It could be some crud in the tank I suppose. How can I check that?
Have you fixed the issue? As I'm having the same problem.
Re: FZS 600 Loosing power, cutting out and backfire --- HELP ME!!! - StreetFzr - 13-02-23
Mine had a bit of a problem where it started misfiring badly like it was losing a couple of cylinders. After sitting a few minutes it would be OK, then the problem would start again.
I ended up taking the tank off and draining it, drained all the carbs, took off the filter and cleaned out with brake cleaner, cleaned all the plugs and refitted everything along with new petrol. Problem sorted.
Guessing it was water in the carbs from the odd time I've used this crappy E10 stuff.
Re: FZS 600 Loosing power, cutting out and backfire --- HELP ME!!! - darrsi - 13-02-23
(13-02-23, 04:46 PM)StreetFzr link Wrote: Mine had a bit of a problem where it started misfiring badly like it was losing a couple of cylinders. After sitting a few minutes it would be OK, then the problem would start again.
I ended up taking the tank off and draining it, drained all the carbs, took off the filter and cleaned out with brake cleaner, cleaned all the plugs and refitted everything along with new petrol. Problem sorted.
Guessing it was water in the carbs from the odd time I've used this crappy E10 stuff.
99% Isopropyl Alcohol can be used if you suspect water in the tank. It works differently than Ethanol and will bind with water then get burnt off as fuel. Use no more than 1% per full tank of fuel, so 200ml for a 20 litre tank.
I've been using it for years during winter as my bike suffers from carb icing and nowadays I only add 100ml per tank during prolonged colder weather and it makes a difference immediately once the bike starts misbehaving, like it did a few weeks ago.