GSXR250 won't start cold - Suzuki GSX-R Motorcycle Forums

LinkBack Thread Tools Display Modes
post #1 of 2 (permalink) Old 11-15-2017, 03:10 AM Thread Starter
Join Date: Jun 2017
Location: Western Australia
Motorcycle: GSX-R250 (1988)
Posts: 1
GSXR250 won't start cold

Hi All,

Rebuilt a GSXR250 (1988, GJ72) over the past few months and she's all licensed and back on the road (yay) but am having some issues with getting her started.

When I bought her, she had been sitting for a few years and was pretty clagged up. The carbs were full of gunk and I stripped, cleaned, re-jetted and re-assembled them. I also replaced the head gasket and performed all the usual things you do on an old bike that has been idle for a long time.

Long story short - its all going BUT it refuses to start from cold. Choke is working, fuel is flowing, there is fuel in the bowls, spark is strong, plugs, leads and coils are new. The idle and mixture screws are set, the carbs have been balanced and there are no flat spots, surges, pops or bangs once it goes. Its just the initial start! I have to use a significant squirt of aerostart in the airbox first up just to get it to keep going once it catches with the first or second crank. Once its going and is up to operating temp its just fine. I can even park it for an hour or two and it will start up without a problem. HOWEVER if I leave it over night or for a long period it WILL NOT start without an aerostart injection. I AM AT MY WITS END!

If ANYONE knows ANYTHING about this problem/has encountered it before/knows what causes it/knows how to fix it then PLEASE tell me! I really need to resolve this as its spoiling the enjoyment of what is an extremely fun machine to ride.
zeek_doggy_dog is offline  
Sponsored Links
post #2 of 2 (permalink) Old 11-15-2017, 07:05 AM
Provisional Novice
RaiderGT's Avatar
Join Date: Feb 2016
Location: Southern Maryland
Motorcycle: 96 1100
Posts: 217
Re: GSXR250 won't start cold

Do these have a true enrichment circuit or is it just a physical choke?
RaiderGT is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Suzuki GSX-R Motorcycle Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome