Sinnis Trackstar 125 - Improvements?

[crewzer]

I was wondering if there is anything I can do to my Sinnis Trackstar 125 to squeeze a little more performance out of it (derestricting, tuning, upgrade parts etc.) I've tried googling it but had no luck.

[Jmh600]

[Rogerborg]

It's got a Suzuki GS/GN/EN125 copy-engine so anything that applies to the Suzuki will apply to the Sinnis.

You could try:

Maintenance:
Get the chain tension and tyre pressures dialled in, clean the air filter and clean and gap the plug. Keep the oil good and fresh.

Tuning:
De-cat the exhaust.
Fit a cone filter.
Rejet to suit.
Skim the head to increase compression.
Try a "racing" CDI to advance the spark.
Fit a brand name coil, lead and spark plug.

All of which might buy you a fraction of a horsepower and maybe a couple of mph, with a favourable following wind and enough self belief.

The reality is that it's a low compression 125, and there's no way to transform it.

If you want to get cheeky, you could fit a GS125 150cc kit. eBay will provide many options, with dimensions so that you can check if they'll fit.
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Biking is 1/20th as dangerous as horse riding.
GONE: HN125-8, LF-250B, GPz 305, GPZ 500S, Burgman 400 // RIDING: F650GS (800 twin), Royal Enfield Bullet Electra 500 AVL, Ninja 250R because racebike

[talkToTheHat]

Maintain your chain, check the brakes aren't binding and put your pennies in your a2/a licence fund and big bike fund. It'll cost a fuckload to make enough of a difference to be seen anywhere else than a dyno printout that says your bike makes however much more power the guy with the dyno charged you for.
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Bandit. does. everything.

[The Shaggy D.A.]

[hmmmnz]

i did a 150cc kit for both my dr125 and my partners little brothers sinnis cafe

the results were great, i did a how to video here
https://www.youtube.com/watch?v=TQEzt5smYw4

you dont really get any more top end speed with out changing the gearing, but you get a pant load extra torque

well worth the time, effort and the little cash it costs to do,

i reckon you'd be hard pressed to get anymore performance for the buck in any other way
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the humans are dead
I kick arse for the lord
Wiring Diagrams BIDNIP it bitches

[stevo as b4]

Suzuki DR200S engine would be the easy or best way. Or you'd make a GN250cc engine fit if you really wanted to.
Hell even a DR350 lump might go in with some custom mounts and frame rail chopping etc.


Buy a bigger bike to tune would be the best way though.