Main jets for motorbikes carburettors

Available in 2 versions and different sizes for Mikuni and Keihin carburettors for 4 stroke engines.

DJ (threat diam. M5) For Mikuni and Keihin carburettors. Code Description Price (EUR) Delivery: days from your order DJ90  Main jet DJ 90 4.98 1-5 DJ98  Main jet DJ 98 4.98 1-5 DJ100  Main jet DJ 100 4.98 1-5 DJ102  Main jet DJ 102 4.98 1-5 DJ104  Main jet DJ 104 4.98 5-20 DJ106  Main jet DJ 106 4.98 1-5 DJ108  Main jet DJ 108 4.98 5-20 DJ110  Main jet DJ 110 4.98 5-20 DJ112  Main jet DJ 112 4.98 5-20 DJ114  Main jet DJ 114 4.98 5-20 DJ116  Main jet DJ 116 4.98 5-20 DJ118  Main jet DJ 118 4.98 5-20 DJ120  Main jet DJ 120 4.98 1-5 DJ122  Main jet DJ 122 4.98 5-20 DJ124  Main jet DJ 124 4.98 1-5 DJ126  Main jet DJ 126 4.98 1-5 DJ128  Main jet DJ 128 4.98 5-20 DJ130  Main jet DJ 130 4.98 1-5 DJ132  Main jet DJ 132 4.98 5-20 DJ134  Main jet DJ 134 4.98 5-20 DJ136  Main jet DJ 136 4.98 1-5 DJ138  Main jet DJ 138 4.98 1-5 DJ140  Main jet DJ 140 4.98 1-5 DJ142  Main jet DJ 142 4.98 5-20 DJ144  Main jet DJ 144 4.98 1-5 DJ146  Main jet DJ 146 4.98 5-20 DJ148  Main jet DJ 148 4.98 1-5 DJ150  Main jet DJ 150 4.98 1-5 DJ155  Main jet DJ 155 4.98 5-20 DJ160  Main jet DJ 160 4.98 5-20 DJ165  Main jet DJ 165 4.98 5-20 DJ170  Main jet DJ 170 4.98 5-20 DJ175  Main jet DJ 175 4.98 5-20 DJ180  Main jet DJ 180 4.98 5-20 DJ185  Main jet DJ 185 4.98 5-20 DJ190  Main jet DJ 190 4.98 5-20 DJ195  Main jet DJ 195 4.98 5-20 DJ200  Main jet DJ 200 4.98 5-20

YJ For Mikuni carburettors. Code Description Price (EUR) Delivery: days from your order YJ132  Main jet YJ 132 4.98 1-5 YJ134  Main jet YJ 134 4.98 1-5 YJ136  Main jet YJ 136 4.98 1-5 YJ138  Main jet YJ 138 4.98 1-5 YJ140  Main jet YJ 140 4.98 1-5 YJ142  Main jet YJ 142 4.98 5-20 YJ144  Main jet YJ 144 4.98 5-20 YJ146  Main jet YJ 146 4.98 5-20 YJ148  Main jet YJ 148 4.98 1-5 YJ150  Main jet YJ 150 4.98 1-5 YJ155  Main jet YJ 155 4.98 5-20 YJ160  Main jet YJ 160 4.98 5-20 YJ165  Main jet YJ 165 4.98 5-20 YJ170  Main jet YJ 170 4.98 5-20 YJ175  Main jet YJ 175 4.98 5-20 YJ180  Main jet YJ 180 4.98 1-5 YJ185  Main jet YJ 185 4.98 5-20 To achieve good carburetion, it is advisable to start from a plausible basic carburetion. In doubtful cases, it is better to start with rich mixture rather than a lean mixture. Generally speaking, if the engine is supplied with a mixture which is too rich, it will tend to flood or surge. Conversely, if the engine stumbles or misses, the mixture is too lean, while in certain extreme cases knocking can occur.  Backfiring during coastdown is a sign that the mixture is leaning out, that air is getting into the exhaust system, or that the idle mixture is too lean. At wide throttle openings, however, the mixture may be correctly adjusted or even rich. The inside of the tailpipe can provide useful information about fuel metering. This information, however, depends on how the motorcycle is used. Black deposits on the inside of the tailpipe, for instance, can indicate that the engine is often idled for a while before being shut off, though the mixture may be lean at WOT. The best thing to do, in any case, is to proceed with caution and avoid overly lean mixtures: it's better to err on the rich side.