My R15 v2 YZF engine light blinks 10 times firsts 5 blinks slow rest very fast bike tends to stop whenever it appears n stop but when the light is on upper the bikes dont stop above 90 km/hr not stop

Arnie Burke

• 7339 Answers
• Posted on Aug 05, 2009

SOURCE: less pick up in my pulsar 2006 bike

a compression test could be in order-buy a clymer manual and cylinder comp kit however make sure your not neglecting maintenance-check plugs and wires/coil also inspect carbs and fuel system

SOURCE: no start 09 Ultra Classic Electra Glide

Sounds like your charging system is not charging the battery.

Put a volt meter on the battery, run the engine up to maybe 2,000 RPM. The voltage must be at least 13.8V, but not more than 14.5.

If that is all OK, your battery is worn out, and is not holding sufficient reserve. It would need to be replaced.

Testimonial: "waiting on dealer to get back to me...voltage meter on bike reading between 14-16"

Murtaza Akberali Versi

• 767 Answers
• Posted on Aug 18, 2010

SOURCE: open the engine about 2

Where exactly does the engine oil leak from the engine?
Is it the gaskets or the oil seals?
From your explanation, it seems the plug is getting fouled up, the carburator settings maybe wrong, you will have to reset it,best would be to do up a complete tune up, checking and resetting the valves clearance, the spark plug, the ignition timming etc. etc.
By the way which year is your bike?

SOURCE: My 2001 yamaha yzf r1

That's one crazy fast speed, I'm going to assume you are on a race track not the streets or high ways. To answer the restricted part "normally" what happens here is the engine goes into a state of controlled miss fire "limiting" the engine revs to a specific RPM called a rev limiter.

Okay the part that is the problem is the carb jetting, you are basically running out of gas at high speed when the engine is under sever power demands. Causes can be many one is because it's a carburetor type engine it is sensitive to atmospheric changes as in altitude, temperature and humidity. This is were an injected engine will shine because it automatically adjust for these conditions almost instantly.

Another problem is if the bike has performed properly before under the same conditions then I'd say you just brought it out of storage and the gas was left to evaporate in the system and has left sediment behind partially clogging the high speed jet(s)

Normally carburetor type motorcycles are a gravity feed (when the gas tank rested above the engine) id the fuel filter in the tank and the one in-line before the carb(s) are partially blocked it will also give the problem.

My suggestion would be to have a motorcycle mechanic do a fuels system service to correct the lean condition.

SOURCE: smoke exits from bike

somtimes the problem might be with engine head. you might have to change the valves and the valve linings.