loading.gif
Notes
Login Sign Up Shopping Cart 简体中文
Add to my favorite categories
category Engine
Path Yahoo Bid > Automotive > Motorcycles > Auto Parts > Engines & Cooling Devices > Yamaha > Engine
Remarks
Add my favorite keywords
Keywords
category Engine
Remarks
Join my favorite seller
Seller 2XuZC***
Remarks
Add to my blacklist seller
Seller 2XuZC***
Remarks
Yahoo Bid Automotive Motorcycles Auto Parts Engines & Cooling Devices Yamaha Engine
 Store 【最高峰】ヘッド付センターリブ仕様9ポートボアアップ グランドアクシス/BW'S100/BWS100【専用ピストン/専用ヘッド/複数ガスケット付】
 
        

  • Product Quantity
    : 2 / Remaining:2
  • Starting Bid
    :36,180円
  • Highest Bidder
    : / Rating:
  • Listing Date
    :2026年03月06日 23時52分
  • Bidding closes on
    :2026年03月13日 23時52分
  • Auction Number
    :j1203571137
  • Condition
    :New product
  • Automatic Extension
    :No
  • Authentication
    :No
  • Early Closing
    :Yes
  • Can I return the product?
    :no
  • Description
  • Q&A ()
  • Cost Estimator
  • Problem Item Response Procedur
Notes
  1. The engine has a problem with residual oil. The product needs to be stored and cleaned separately. An additional charge of 3,000 yen is required for each product. Relevant documents are required for export. If you cannot confirm whether the product contains documents, please ask the seller first. If there are no documents, we will not be able to assist. When you import, after arriving at the Japanese receiving office, it will be forwarded to your designated Japanese address. After pressing Confirm, you can place a bid.
【最高峰】9ポートヘッド付アルミBIGボアアップ

【4VPエンジン系最強シリンダー】
商品詳細
新品未使用、KN9ポートヘッド付アルミBIGボアアップ

数千円で出回っている安物のキットとは品質が全く違います

ボアアップ入門者からハードチューナーまで幅広くご愛用頂ける待望のキットの登場です

【シリンダー】
ボディ/アルミ製、内壁/メッキにより出力/耐久性共に向上
●シリンダーハイトを4mm延長
●市販のロングクランク等との併用も可能にしています
●今まで不可能だったポートタイミングも可能にした設計
●各ポート外壁の肉厚も加工を考慮した設計にしています

【ピストン】
●大型排気ポートに対応した形状を採用
●ピストン重量約140gとした重量/耐久性のバランスがとれた設計

【ヘッド】
●ロングリーチプラグタイプの専用ヘッドを採用
●ロングクランク併用時のヘッド加工にも容易に対応する構造

※車両に合ったキャブセッティングが必要です

今までのキットでは体感出来ない次元を味わえます

これで愛車の性能を十分引き出して見ませんか?

数に限りがございますので、お早めにどうぞ

何かわらないこと、気になる点などございましたら、ご質問ください。当方のわかる範囲でお答え致します。

支払詳細
 ・ ゆうちょ銀行
 ・ 銀行振込(三菱UFJ銀行)
 ・
Yahoo!かんたん決済
  (振込手数料は落札者様負担となります)

指標組合せ例
・9ポートビッグボアキット+STDクランク
・ビッグキャブキット(PWK28mm+4枚BIGリード+BIGインマニ)
・G03/G03Xマフラー

ハイスピードプーリーキットと併用することにより
約14PSをマーク
※参考値
STD:約6.5PS

※セッティングによって差が生じます
商品諸元
■定価
37800円(税別)

■諸元
適合エンジン:4VP
STDクランク使用時排気量:121.4cc
ボア径:57mm
圧縮比:1:14
スキッシュ推奨:0.8mm
シリンダー長:89.8mm(STD85.8mm)
ピストン重量:約140g
燃焼室容積:9.19cc

■適合車両
グランドアクシス100 全車
BW'S100 全車
エアロックス100 全車

■セット内容
・9ポートシリンダー ×1
・専用シリンダーヘッド ×1
・ヘッドガスケット(0.5mm) ×1
・ベースガスケット(0.2/0.3/0.4/0.5mm) ×各1
・専用ピストン(57mm) ×1
・ピストンリング ×2(1set)
・ピストンピン ×1
・ピストンピンクリップ ×2(1set)
・ニードルベアリング ×1

お願い
土日祝は基本的には出荷が出来ませんのでご了承くださいませ。

自己紹介欄もご覧頂ければ幸いです。

緊急のご連絡やメールなどは
弊社オークションストア情報
をご覧くださいますよう、宜しくお願い致します。

発送詳細
・宅急便発送

・宅急便の商品代引も承ります
 (代引手数料700円)

※送料はヤフオクの送料表示を参考にして下さい

注意事項
日本語説明書が付属しておりますが、1から10までの取付手順/詳細は記載されておりませんので、それなりのエンジンに対する技術/知識が必要なパーツです

●専門技術・知識の必要なパーツにつき、取付は必ず専門知識のある技術者が行ってください。

無資格の個人様が取り付けに伴って発生した不具合に関しては一切保障出来かねますので、あらかじめご了承ください。

ほかにも出品しています。よろしければご覧ください
The

Yahoo!かんたん決済がご利用いただけます
The

+ + + この商品説明は オークションプレートメーカー2 で作成しました  + + +
No.201.001.006

Please log in before asking questions
Question list
All replies from original sellers (total number of questions: items)
After the seller responds, the original page will display the question
Product Price JPY
Japanese Consumption Tax(10%) JPY

A 10% consumption tax is applied to goods and services in Japan. The price may include the tax or it may be added separately. Please check the price details when ordering.

Note: This is a domestic sales tax applied within Japan.

Japan Local Shipping Fee JPY Japan Local Shipping Fee Reference
Product Weight KG The maximum weight limit is 30 kg
International Shipping Methods
Proxy bidding and purchasing services are becoming increasingly convenient. However, overseas shopping carries certain risks and issues. To reduce these risks and enhance shopping safety, please be sure to read the following information:

1. International Shipping

   Air Freight: If the item status is not confirmed within two days after the arrival notice, any customer complaints cannot be addressed with the seller.

2. After Receiving the Product

Please confirm and inspect the product as soon as possible to ensure that the product specifications, quantity, accessories, and description are correct

If, unfortunately, there are any issues, you can refer to the following examples on how to report related product problems:
1. Example of missing product information
2. Example of product not matching provided information
3. Example of damaged product information

Important Notes: 1. If the seller is unwilling to ship overseas or is unaware that the product will be shipped overseas, the international shipping cost for returns or exchanges will need to be borne by the member. You may refer to the EMS e-Express fee inquiry from the post office. If it involves alcoholic beverages or items that affect flight safety, the post office cannot be used for shipment, and only DHL can be used to ship back to Japan.
2. During the product complaint handling period, please retain the complete outer packaging of the product (including the shipping label information), and refrain from attempting any repairs or altering the original condition. Any modifications may result in the inability to process the case.

3. After Inspecting the Product

After receiving and inspecting the item, if you have any questions, it is recommended to contact Letao within 2 hours. Here are some reminders:

1. Please do not unpack, use or repair the received item yourself, and be sure to keep the original packaging to facilitate subsequent handling of related matters, so as to avoid changes to the item that may cause the seller to be unwilling to process.

2. You can call customer service, and the customer service will leave a message for you as below. Please provide the following information:
"Hello, we will first help you establish a complaint case for Product ID: _______ .But we need you to 2-3 clear photos of the product issue, including photos of the product problem, product packaging, shipping details slip, and outer box. Send them to service@letao.my and inform us of your desired resolution (failing to provide this may result in an inability to process subsequent matters). After sending the email, notify us in the customer service message. We will confirm with the seller as soon as possible. and if there are any related questions, we will contact you through the customer service message. Thank you for your cooperation."

Please provide:
1. "Product ID"
2. Photo of the "Delivery Note" (if any)
3. Photos of the outer box (including inner and outer packaging)
4. Photos of the product (Please include relevant descriptions to help us confirm with the seller)

Important Notes:
1. Do not include foreign text or other products in the background of the image.
2. Please keep the complete product packaging (including the shipping label information), and refrain from repairing or altering the original condition on your own, as any changes may result in the case being unable to be processed.
3. Please provide the relevant information within 48 hours to avoid missing the golden hour for reflection and causing situations that cannot be handled.
4. Due to 99% of Japanese sellers being unwilling or unaware of shipping goods overseas, if a seller is willing to handle the issue, the goods must be sent back to Japan, and the international shipping costs incurred must be borne by the member. Letao will use postal EMS international express to send the goods back to Japan.
5. As the goods are purchased from overseas, it may take approximately one to two weeks to complete the relevant processing procedures when issues arise with the goods. Please be reminded that you can inquire about the approximate cost through the EMS service at the post office.

4. FAQ

1. Issue of Authenticity: If antique or branded goods are found to be counterfeit upon receipt, clear photos showing the differences between the genuine product and the imitation must be provided as evidence. If unable to provide relevant proof, assistance can be sought to find a third-party reputable organization for a premium authentication service .
2. Leaking Iron Teapot: If an antique iron teapot is leaking, please take clear photos of the leaking area and provide them.
3. Transport Damage: If the goods are damaged during international shipping (to the pickup point), you need to provide photos of the outer packaging of the parcel and clear photos of the damaged goods' outer packaging.

※ Note: Photos provided to sellers should not contain any foreign-related information.
You may also like
    Seller products
    Excite Translate
    Add to watchlist and notes
    Product name: 【最高峰】ヘッド付センターリブ仕様9ポートボアアップ グランドアクシス/BW'S100/BWS100【専用ピストン/専用ヘッド/複数ガスケット付】
    Notes:
    Customer service hours:
    • Monday to Friday 10:00-18:00
    Customer service hotline:
    Customer Service Email: service@letao.my