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2004 Gg300 Txt Pro The Good And Bad

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That is a pretty clean lookin bike for 10 years on. The Gasser pros can be a wonderfull bike in the right hands, my motto is, if PRO fits, wear it! They are not what I would call a low maintenance bike.

Personally, I cannot even start one of them, although if I can find someone to start it for me it can be very smooth and torque oriented as long as you keep the throttle below about 1/4. Above that and my shoulders tend to pop out of socket at the thing starts to rip them out! How large are your gonads?

I would guess it is better than what you have in weight and suspension and performance but be carefull what you wish for!

  • Author

I hear ya Cope. Wish is was 200-250 cc range.

I find the 300 way smoother than 250. Starting is easy if is set up correctly and you use the right method. Float level in carb plug gap and use no thottle only choke from cold and some thottle when warm works for me.

  • Author

My Zero was a bear to start when I first got it but using the method you described it's a one kick start now. A little improved motion as described on trialspartsusa tech articles helped also.

That is almost the spitting image of mine (must be it's American cousin). Only issues I have had are the Ducati ignition which was used for 2 years on the pro. I ended up replacing the whole lot, flywheel included, for the later Kokusan Japanese set up.

PS I have a rebuilt Ducati stator coil setup and good regulator rectifier if you ever need it!

As far as starting goes there is a definate technique to it! I call it the harley kick. DO NOT stab at the kickstart otherwise you will end up chipping the teeth on the kickstart mechanism. I bring the kickstart down with my foot slightly til I feel everything engage then throw my weight behind it and it usually starts within 1 or 2 kicks. I would liken it to starting a four stroke!

Also to tame the beast slightly use a slow action Domino throttle. It is a torque monster and I find it much easier to ride than the 250

Edited by petert

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