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Posted
post-84754-1244587067_thumb.jpgI have a KRR150ZX in Bangkok and would like to know where are the shops that deal with these bikes, and also performance parts suppliers and any modifications other riders know of. I have Battlax tyres and a Tsukigi pipe on it, and gave it more air by cutting vents in the airbox lid, and richened the A270 main jet, 2 sizes up to an A290. The shops that I have found are all into 4 strokes, I got the pipe from Panom Racing in Samut Prakan, after a lot of searching.
Posted

there's the :

1. intake/exhaust port and carburetor port mods

2. advanced ignition mod

3. four stages to the clutch mod - springs, shorter post, less plates, copper plates

4. the bike should already have carbon reeds, but may be worn out by now.

5. lengthened stroke - but will be lethargic for the first 15 feet (unless you rev up), but then the powerband will slap you in the face - not really good for city driving.

6. 415 racing chain and sprockets

7. bigger brake reservoir, stainless braided lines

8. CDI - don't over rev and blow your piston.

9. higher compression, either shave the head or a taller piston - if applicable

10. internal gears, probably the best mod if there are any deadspots -

eg: the cbr 150 has an extremely short 1st gear and a tall 6th gear that drops rpms way too much.

My 1st, 2nd, 5th, 6th gears have been done and pulls twice as hard in 6th. Shifting from 5th to 6th the stock gearing loses about 1200 rpm, now im only losing 500 rpm on the upshift.

Posted
there's the :

1. intake/exhaust port and carburetor port mods

2. advanced ignition mod

3. four stages to the clutch mod - springs, shorter post, less plates, copper plates

4. the bike should already have carbon reeds, but may be worn out by now.

5. lengthened stroke - but will be lethargic for the first 15 feet (unless you rev up), but then the powerband will slap you in the face - not really good for city driving.

6. 415 racing chain and sprockets

7. bigger brake reservoir, stainless braided lines

8. CDI - don't over rev and blow your piston.

9. higher compression, either shave the head or a taller piston - if applicable

10. internal gears, probably the best mod if there are any deadspots -

eg: the cbr 150 has an extremely short 1st gear and a tall 6th gear that drops rpms way too much.

My 1st, 2nd, 5th, 6th gears have been done and pulls twice as hard in 6th. Shifting from 5th to 6th the stock gearing loses about 1200 rpm, now im only losing 500 rpm on the upshift.

Thanks Very Much Sinewave, now to be more specific, where can I find these things and or get them done?

Posted

Arh racing, I see youre around samut prakan, go to one of the motorcycle taxi's across from seacon square and ask them to lead you to Arh racing....guy did my bike many years ago, but has moved and i can't find him any longer... his son took a handlebar in the gut, so i'm not sure if he's still doing it.

This is the only person i can recommend, since he did prior work to my bike and did a good job, nothing ever broke, but took it back once to readjust the timing...some shops can do it, but not all shops can do it properly without things breaking.

cost me 6k baht, excluding cdi, gears, brake reservoir and a 428 instead of the 415 chain.

i'll poke around and see if he's still doing it, i'll let you know later.

Posted
Arh racing, I see youre around samut prakan, go to one of the motorcycle taxi's across from seacon square and ask them to lead you to Arh racing....guy did my bike many years ago, but has moved and i can't find him any longer... his son took a handlebar in the gut, so i'm not sure if he's still doing it.

This is the only person i can recommend, since he did prior work to my bike and did a good job, nothing ever broke, but took it back once to readjust the timing...some shops can do it, but not all shops can do it properly without things breaking.

cost me 6k baht, excluding cdi, gears, brake reservoir and a 428 instead of the 415 chain.

i'll poke around and see if he's still doing it, i'll let you know later.

Thanks Again Sinewave, I've moved from Bangna to Saphan Kwai, but no problem, I've been looking far and wide. I don't understand about the chain, mine is stock 520. Did you have a 415 and changed to 428?

  • 4 weeks later...
Posted
Arh racing, I see youre around samut prakan, go to one of the motorcycle taxi's across from seacon square and ask them to lead you to Arh racing....guy did my bike many years ago, but has moved and i can't find him any longer... his son took a handlebar in the gut, so i'm not sure if he's still doing it.

This is the only person i can recommend, since he did prior work to my bike and did a good job, nothing ever broke, but took it back once to readjust the timing...some shops can do it, but not all shops can do it properly without things breaking.

cost me 6k baht, excluding cdi, gears, brake reservoir and a 428 instead of the 415 chain.

i'll poke around and see if he's still doing it, i'll let you know later.

Thanks Again Sinewave, I've moved from Bangna to Saphan Kwai, but no problem, I've been looking far and wide. OK about the chain, mine is stock 520. You had a 428 and changed to 415.

I went to Seacon and no luck, I've been searching more, can anyone help?

Posted

Id like to know as well. A good place to go that can be trusted....

I have an NSR 2 stroke and Honda is so expensive and the pats are taking close to 2 weeks now to come.....

All i need is the shocks rebuilt, maybe some new seals, and maybe a chain or chain mount replaced for now.... Its loose and wobbly as heck.

Modifications later if I have more money. Now Im giving my girlfriend money and we want to take a trip. Rght now Im only 25k baht per month.....

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