Question about Yamaha Drag Star Four Motorcycles

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My yamaha 400 dragstar will start easily and run on choke, but as soon as the throttle is touched the engine cuts out, will not start on throttle only on choke.

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Hi there,

I am a dragstar owner myself and i had this problem for a while,

1. Remove the air filter temporarily and start it.
2. Replace the spark plugs with a new one. Start and run it.

If any of the two doesnt work, let me know so i'll do a follow up

hope this helps,
levibit

Posted on Dec 12, 2010

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Hi
That's a fuelling problem
Sounds like she has been laid up for a while -
If more than 5 or6 months then you'll have to drain & replace the fuel from both the tank & carbs
If over a year then you may need to strip the carbs

It could just be sticky floats - try adding a carb cleaner to your fuel

Ride Safe
Bike-Doc

Posted on Sep 29, 2010

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