Specifications Hign-concerned Chemical:None Item Length:0inch Displacement (ml):650/750 No. of Cylinders:2 Cylinder Special Features:Direct replacements for the original parts Item Diameter:0inch Item Weight:360g Item Height:0inch Item Width:0inch External Testing Certification:iso9001 Model Name:NV750 C2 VT750 DC2 XL600 V XL650 XRV NV VT 750 XL 600 14721-MR1-000 Brand Name:Road Passion Item Type:engines Material:Strength Steel Include:1 Set (1pc Intake Valve Stem+1pc Exhaust Valve Stem) Intake OEM:14711-MV1-000 Exhaust OEM:14721-MR1-000 We focus on the production of various types of motorcycle accessories, from tiny parts to large and heavy parts that can be purchased and used. Symptoms of motorcycle valve loosening: 1. As long as the valve clearance is not suitable, it can be adjusted at any time. Generally, it can be adjusted once. 2. Formal adjustment requires a feeler gauge to measure. Generally, the valve clearance is different depending on the model, the clearance is about 0.05-0.08, and the scooter can be larger 3. The valve clearance must be adjusted to normal. Too large or too small is not good, and it cannot be adjusted to increase or decrease artificially. Too large or small has only shortcomings and no advantages. 4. The valve clearance must be adjusted when the car is cold. The valve clearance will change when the car is hot, and it should be subject to the cold state. If you feel the power drops and the idle speed is unstable after the adjustment , the gap should be adjusted down, and you should adjust it in time. Brand name RoadPassion Product type Intake Exhaust Stem Valve Guide Seal Material Stainless steel Condition Direct replacements for the original parts Quantity 1 Pair / 2 Pairs Fit For HONDA: NV750C2 Shadow 1999-2001 VT750DC2 Black Widow 1997-2007 XL600V Transalp 1989-1999 XL650V Transalp 2000-2006 XRV750 Africa Twin 1990-2000