88cc cylinder for you, although this is not a bolt-on item for most QMB 139 bikes. Most of the time, engine cases need to be cut. Order part number 1400-1001, Engine Boring Tool if there is no access to a machine shop. It is also recommended to get part number 1100-1239, along with the 50mm valve head, as some stock heads will not fit. Take a look at our decompression tube assembly which replaces your gauge and allows excess pressure to be released from the crankcase. Good idea to install one of these alongside a cylinder kit upgrade.
Then this 88cc big bore kit for you, although its not a bolt on item for most QMB 139 bikes. Most of the time, engine cases must be cut. Order part number 1400-1001, Engine Bore Tool if there is no access to a machine shop. Its also recommended to get part number 1100-1239, 50mm big valve head as well, as some stock heads will not fit. Have a look at our Decompression Tube Assembly which replaces your dipstick and allows excess crank case pressure to be released. Good idea to install one of these alongside any cylinder kit upgrade.
If you paid by PayPal or credit card, the money will be debited from your account on the day your order ships. Bank transfer, your order is taken care of upon receipt of payment. If your order has not yet been dispatched, we are making every effort to process your order as quickly as possible.
Everything in stock
Shipping is done no later than 24 hours after placing the order. We ship with Purolator 1-2 business days. The PRODUCTS are shipped to the delivery address(es) that the CUSTOMER has indicated during the ordering process. If one or more parts are not available, we will send them to you upon receipt of the missing parts.
Free delivery
We offer free shipping for all orders over $300.
Have a question?
SKU:
Availability:In StockMany in stockOut of stockYou can purchase this product but it's out of stock
