GT250C hard to start

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Bluehagon
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Joined: Fri Apr 24, 2020 7:53 pm

GT250C hard to start

Post by Bluehagon »

I have recently finished the restoration of my GT250C and when started runs great and ticks over when up to temperature.

However, it is a real p*g to start and generally only manages it on the right hand cylinder on the choke.

Then I need to play with the throttle to get the revs up enough as well as opening the choke, then the LH cylinder fires up.

The carbs have been through an ultrasonic cleaner and all jets, needles etc swapped for new.

Anyone got any ideas.
barney01
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Location: Prestatyn.Wales

Re: GT250C hard to start

Post by barney01 »

Firstly can i confirm you have exchanged the jets for genuine Mikuni or Suzuki parts with a number?
Next is to make sure that the throttle is in the fully closed position when trying to start the bike. If the throttle valves are raised at all this renders the choke circuit useless.
I know you say the carbs have been cleaned but it can take several runs through the machine to clean the internal passages.
NO SMOKE .......NO POKE
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BAZ
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Re: GT250C hard to start

Post by BAZ »

If it's the carbs with the choke lever only operating on one carb make sure you have the correct bowl on the correct carb they are different.
Bluehagon
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Joined: Fri Apr 24, 2020 7:53 pm

Re: GT250C hard to start

Post by Bluehagon »

How do you tell the difference between the float bowls?
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BAZ
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Re: GT250C hard to start

Post by BAZ »

One has the choke hole blocked off
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