ktm jeff

Good idea to check the valves and ensure the carb is "in-tune".   Next , check the tires , VERY carefully , for de-lamination , bulges etc , including inside the tread pattern , for cracks. Then have the wheels balanced.  Check for cables ( throttle / clutch ) and wires , that could be vibrating against the plastic headlamp surround / casing. Are these secure .  Rubber mounting the engine may require new brackets , but if easy enough , may be worth a try.  Also check bars , mirrors , control switches and levers. The levers can wear on their pivots - grease them.  You wont be able to increase the power , so going down 2 or 3 teeth on the rear sprocket wont improve top speed ( as you suspected ) but will lower the revs at a given cruising speed. Out of curiosity , what is the bike and its price. Good luck.

Thank you for the information. I will look into this oil.

2 hours ago, samuttodd said:

https://www.lazada.co.th/-i345444304-s673978992.html?urlFlag=true&mp=1

 

Amsoil 20w50 100% SYNTHETIC and a filter to boot!bl

On 6/23/2019 at 1:40 AM, jackdd said:

Motul is just way over priced. They have to get the money back which they spend on all the advertising

 

You understood something wrong

So here in Thailand it's completely irrelevant if it's 10w-50, 15w-50 or 20w-50, because it won't be below -20 degrees celsius.

But as mentioned before, sometimes it's above 40 degrees celsius, so using an engine oil which is good up to 50 degrees makes sense

What i meant was , as your chart shows , the blue numbers are 0 degree centigrade numbers. Not much use in Thailand. the important figures are the red ones. As it gets over 40 degrees , you want an oil to have a higher  VI grade than 40. A 15/50 will cover between  - 25 and + 50. I have yet to find a fully synthetic , or a 100% synthetic oil , of the grade 20/50. Motrex does a 10/60 - at a price.

There should be another engine code other than JS150. Maybe something like 156 FML. Check near the oil drain plug. Your engine seems to be based on the Suzuki GS 125. Many of these "type" of engines are based on either Suzuki or Yamaha.  Valve clearances ; (OHV - IN = 0.06 mm. EX = 0.08 mm).  (OHC - IN = 0.08 mm. EX = 0.10 mm). These are good base figures. Set on compression stroke.  These engines run hot , use 10/50 or 15/50 oil. The carbs dont like too much ethanol , so use E10 rather than E20.

I also use Elf ( Total ) Moto 4 Tech 10/50 Fully Synthetic , from the Honda shop , near the bus station in Chiang Mai. The first viscosity number ( 10 or 15 ) isnt really important here. Your engine oil will rarely be below 15 degrees Celsius. I believe Shell Rimula is a "EF" energy efficient / "EC" energy conservation oil. Rotella was not. So it could effect wet clutches. Rotella t6  is a 5/40.

Nash Metropolitan ?.

I fit my grips , leave overnight to fully cure , then , using a scalpel / long slim hobby knife , cut out the end using the end of the bar as a guide. Or buy "lock-ons".

Yamaha own Ohlins suspension. Yamahas are know to have better quality brakes and suspension than Honda. Design and price of other components is very similar. Yamaha dont overcharge , or have to buy , staff and run a "Honda service center" on every street. Which is often the other thing people mention when trying to justify the "advantages" of buying a Honda.  Like , how hard is it to get an oil change - with filter - once a year.

Agree , not from a car. Could it be touching the underside of the bodywork , where a radiator would be , on full suspension travel. Somethings has been chaffing it for a while to cause that many small scratches. Or has someone been resting their foot on it , while sitting on a bike parked next to it .

2 hours ago, Issanman said:

The Yamaha version of a Wave is called a Spark or Finn. 

The Spark/Finn has an actual oil filter element. The Waves have only a screen.

The Spark/Finn can use E85. The Waves can use E20 but not E85.

In the last 4 years, I have bought 3 new Yamahas. 

The Yamahas are at least as good quality as the Hondas I bought previously. 

And I prefer the handling of the Yamahas.

The Honda Wave 125 costs 62,000 Baht. The Yamaha Spark / Finn costs 45 K. Apart from a more advanced design engine , that uses an oil filter , and can use E 85 , the build quality is as good , if not better. People who keep rolling out the old wives tale of Honda having better resale values are living in the past. That stopped when Honda quality started going downhill in 2000. With the price saving you get buying a Yamaha you could buy 850 Liters of fuel. With the Yamaha capable of over 60 KPL , thats over 50,000 kilometers of "free fuel".

19 hours ago, taninthai said:

There is some great crf 250l deals 2 nd hand only thing is most Thais have fitted supermotard wheels and tyres on theirs.

sounds ideal for what you wanna do ,but as others have said rent one first,some people just can’t t get there head round these single cylinder bikes.

This confirms this little Honda is more suited to town/road use. The Kawasaki KLX dual-sport and the Kawasaki D-Tracker super-motard will be slower than a big road bike , but off road its a great bike. Touring is fine , just cruise below 80 KPH.

Rent first is a good idea. The Kawasaki KLX 250 is a much more capable off-road machine than the Honda CRF , and fully road legal. 158 - 162 K new , about 100 K used. Then pick another bike for commuting/travel if budget allows.

richard , your post is spot on. Risk factor rises if your drunk , and chances of death rise with a cheap helmet/no helmet. If i may add , it would be interesting to know the fatalities per 1000 KM. 

A dealer will be able to do this for you providing your paperwork , and the bikes , is in order. Maybe 600 Baht.

Honda was never able to fix , or even tell what was the cause of the wobble , on the ST 1100 bikes. Many were bought as police bikes ( England ) and 1 highly qualified police rider was killed , and more injured , on these Hondas. Under the "fit for purpose" act , honda were forced to buy back these bikes.  Seems they still havent learnt anything.

25 minutes ago, Tropposurfer said:

Vespa Vespa Vespa Vespa Vespa Vespa Vespa Vespa Vespa Vespa Vespa ... Wasp

For 104,000 Baht , she could have bought a nice Vespa. One of a few bikes to hold or even increase their value.

26 minutes ago, BritManToo said:

Holy shit ........ your family must milk you like a buffalo ...........

I bought her a new Honda Wave when she was 15, at 20 she can pay for her own transport.

Yamaha has the best build quality , and disc brake. Yamaha Spark would be the best choice for a semi-automatic , or a Suzuki Smash. Not many Kawasaki scooters about. Nothing wrong with them , just rare.  The price of that Honda Wave works out at 104,000 Baht  !!!. Thats nearly 70% over mark-up price. Another reason to avoid Honda. Could you not loan her the money , saving her a fortune.

5 hours ago, damascase said:

I have a different kind of rotary engine in mind, the one you are referring to is the Wankel-engine. There were radial piston engines that rotated as well, see this example 

 

 

This video should be titled a ROTATING radial engine. Wikipedia is correct - a ROTARY engine has no pistons/valves , just a centrally rotating Reuleaux triangle.

31 minutes ago, Justgrazing said:

By all means have another chuck ..

Anzani ?

Am i allowed a second guess. Montgomery ?.  And the engine TG didnt like looks like an Aprilia "cube" GP engine. An amazing piece of engineering.

6 hours ago, Justgrazing said:

Where we at chaps with the unknown black bike last page .. Any takers .? 

Panther  ?.

Quality wise , i would go for Yamaha. Id second the Grand Filano ( there are 3 versions , std , hybrid and hybrid with ABS ). How about  the Yamaha Spark , fuel injection and disc brake.