Hi guys , just joined the forum , backfire problem

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Donneboy1
Posts: 2
Joined: Tue Oct 02, 2018 1:19 pm

Hi guys , just joined the forum , backfire problem

Post by Donneboy1 »

Hi guys , new in here , ride is 2001 Storm . I have a problem on start up , happens hot but more often cold . Bike cranks over well but doesn't fire , eventually firing and detonating a huge backfire through the exhaust . New air filters ( main and subs ) new plugs , drives me and my neighbours nuts . Any ideas on problem greatly received .
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fabiostar
Posts: 7542
Joined: Sat Jun 01, 2013 3:53 pm
Location: sunny belfast

Re: Hi guys , just joined the forum , backfire problem

Post by fabiostar »

once it starts does it ride ok?...

is the vac pipe on the correct takeoff on the tank?..
the older i get,the faster i was :lol:
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popkat
Posts: 2804
Joined: Sat Apr 28, 2012 9:32 am
Location: Devon

Re: Hi guys , just joined the forum , backfire problem

Post by popkat »

Timing 1 or 2 teeth out.
Valve clearance too tight.

Tell us some more about the bike, mileage, services done, has it had the cam chain tensioners replaced ?




.
http://www.bidefordmotorcycles.co.uk
2014 CRMC Post classic Superbike champion.
2014 CRMC Post classic senior production champion. On a Suzuki Katana 1100
My bikes, Firestorm, Suzuki GSX-s1000 Katana, VFR800Fi. Projects, 1986 popup Katana, 3 XJ600’s
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lloydie
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Joined: Mon Jan 17, 2011 11:16 pm
Location: In the garage somewhere in Coventry

Re: Hi guys , just joined the forum , backfire problem

Post by lloydie »

Don’t use choke until it’s running , only a tad of throttle
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sirch345
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Joined: Mon Aug 25, 2003 10:35 pm
Location: The West Country.

Re: Hi guys , just joined the forum , backfire problem

Post by sirch345 »

popkat wrote: Sun Oct 07, 2018 10:06 pm Timing 1 or 2 teeth out.
Valve clearance too tight.

Tell us some more about the bike, mileage, services done, has it had the cam chain tensioners replaced ?




.
Also was this happening before you replaced the air filters and plugs :?: or since,

Chris.
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