20 Most Recent 2007 Yamaha Ybr 125 - Page 4 Questions & Answers

Depending on the age and use the machine has had, the problem would quite possibly be worn engagement cogs on the gears. I would be considering a rainy day mechanical project, or a trip to my local repair tech to find out a cost estimate.

ring Yamaha dealer they will tell you what the codes mean.

Use a test light and check the power wire, if you have power at horn terminal check the earth side of the horn grounds. If no power at horn terminal check horn switch for power.

Do a leak down test on the fuel tank and tap the carb the float in the bowl could be stuck thus over flowing fuel

I'm making sure I'm thinking about the right vehicle. Honda dirt bike right? Either way sounds like a fuel deliver problem. Your losing psi and speed up. First thing I'll check is the fuel pump at idle then at higher rims.

Sarah, You haven't given nearly enough information for us to be able to make an informed diagnosis of the problem. We need to know what wires you're referring to and where you're connecting them to.

Most modern motorcycle are self adjusting this is something that should be done by a mechanic if it is a manual adjuster. If its to loose it could jump a tooth or worse the chain could come off all together. If to tight will damage the adjust.

how much free play you got on the clutch lever ? 3mm max !! or do you mean it just wont select at all what ever ? mite have bent the selecter fork ! remove clutch cover while the bike is leaning over on opposite side so oil stays in ! look and operate gear lever !

It still may be the bulb. There are with some bulbs 2 or 3 circuits and 1 may be burned out. Next in line is a flasher unit and finally a fuse to check. Do both left and right turn signals not work? Sounds like the flasher unit. Unit is often set up under the seat. good luck.