What size chain is on a Yamaha TTR 125?
428 chain
Sprockets are stock gearing which is a 13 tooth front and a 54 tooth rear sprocket. Chain is 124 links and includes a master link. Sprockets are steel sprockets. Chain is a standard 428 chain.
How much horsepower does a 2003 Yamaha TTR 125 have?
Claimed horsepower was 9.39 HP (7.0 KW) @ 9800 RPM….
| Yamaha TT-R 125 | |
|---|---|
| Compression ratio | 10.0:1 |
| Top Speed | 52 mph |
| Horsepower | 9.39 HP (7.0 KW) @ 9800RPM |
| Torque | 6.64 ft/lbs (9.0 Nm) @ 6500RPM |
What is the top speed of a Yamaha TTR 125?
The TTR 125 has quite a low top speed of 45 to 55 mph, because nobody cares for top speed on a tiny cross bike. You could change the top speed by changing the transmission ratio of the chain drive, so you either use a toothed wheel with one or more teeth more, or you choose a smaller toothed wheel at the rear wheel.
What’s the difference between a 420 and 428 chain?
A 420 and 428 are the same except width and the pins may be a little bigger diameter on the 428. They shouldn’t be though. Pin length should be the only difference.
How much is a 2003 TTR 125 worth?
Values
| Suggested List Price | Average Retail | |
|---|---|---|
| Base Price | $2,499 | $535 |
| Options (Change) | ||
| Total Price | $2,499 | $535 |
What is the top speed of a Yamaha TTR 90?
The Yamaha TT-R90 can reach a top speed of approximately 40 mph without any modifications. The exact speed will vary due to many other factors, such as the weight of the rider, tire inflation, terrain type and wind speed and direction.
How tight should a TTR 125 chain be?
1.2–1.6 inches (30–40 mm) is typical for streetbikes, while dirt bikes may need 1.4–2.0 inches (35–50 mm) of slack. Step 4 To adjust the drive chain, loosen the axle nut a couple of turns . If all you have is a short wrench, you can stand on it to get the nut loose. Measure and adjust until your chain is within spec.
How can I make my Yamaha TTR 125 faster?
To make a TTR 125 faster you’ll need to:
- You can get a new exhaust system from BBR.
- You can remove the airbox rubber snorkel.
- You can add a 14 tooth front sprocket.
- You can drill small holes in the exhaust opening and air filter.
- You can let it breath more with a high flow airbox or free flow muffler.
How do you change timing on TTR125 BBR Motorsports?
1. Remove the left side crank- shaft and timing mark ac- cessing screws. 3. Remove the timing chain tightening bolt and release the pressure on the chain by turn- ing this bolt all the way clock- wise. When installing turn it counter clockwise and you will feel it self adjust.
How to remove CYL Inder from TTR125 BBR Motorsports?
Remove the timing chain tightening bolt and release the pressure on the chain by turn- ing this bolt all the way clock- wise. When installing turn it counter clockwise and you will feel it self adjust. 2. Remove the left side cyl- inder head cam cover by re- moving the two 8mm bolts.
How big is the intake valve on a TTR125?
Valve clearance: Intake: .003~.005 in (.08~.12 mm) Exhaust: .004~.006 in (.10~.14 mm) Continue installing any other parts you have not installed yet and reassemble the motorcycle (if you took the motor out of the en- gine). Be sure to check the oil level before running the motorcycle. Mark on Sprocket 14.
How do you set the valve clearance on a TTR125?
Setting the valve clearance: Loosen the 8mm bolt on the valve adjuster. Using a feeler gauge slide it between the valve and the threaded pin Thread the pin in or out until the feeler gauge fits snuggly but slides easily. Retighten the 9mm bolt at this position and install the valve cover.