Skip to content

Ask an Expert Whirr Bonk??? Technical

You are in... Forums > Ask an Expert > Technical > Whirr Bonk???

Got something to say?

Got something to say?

Go to most recent reply



Apr 10

Posts: 19

Whirr Bonk???


Went to start the bike this morning and it went whirr bonk... It turned over for a split second and then made a loud  donk noise and stopped turning over. Turned off ignition, tried again, same thing. I thought the bike was dead but after a few more tries it kicked in and started but roughly. Bit of smoke out the pipe but it was early morning... After that it seemed fine. Any ideas what it may have been?

Suzuki GSX750F 2000

[This Topic has been modified by the Moderator]

Reply to this Topic  
  • Posted 2 years ago (08 May 2013 20:38)

Post a message in Technical

Fields marked with an asterisk * are required


Please note. You cannot submit more than 4000 characters as a message.

Upload image(s) from your computer (up to 3 images)


Terms of use

Use of our community areas and forums is subject to important terms of use. By joining our community and using the features you agree to be bound by these terms. See terms of use below. 



Aug 02

Posts: 3293

eatcs01 says:

whirr bonk

Flat battery? When was the last time you rode it?

Reply to this Topic


Jan 08

Posts: 7834

kcmc says:

Suzuki GSX 750F 2000E2

Hi Pinheadplanet

Could also be a slight hydraulic lock which can occur if a bike has been left for some time on its side stand,petrol from the left hand float bowl can overflow into a the left hand cylinder causing the same effect.If possible leave the bike on its main stand or a paddock stand with the fuel turned off not on prime as the diaphragm in the tap should take care of the rest,if it still occurs from time to time it could be the rubber diaphragm in the tap perished and starting to leak past into number one cylinder down the vacuum pipe(you can rebuild the tap with a tap diaphragm rebuild kit.Good Luck


[This Reply has been modified by the Author]

Reply to this Topic


Compare Insurance

Save money by comparing quotes. It's quick and easy

Motorcycles for sale


It's only £13.99 to advertise your motorcycle on MCN

Sell your Motorcycle

Motorcycle pricing tool

New! Find used bike prices