04 Vulcan 750, Cranks for awhile until it turns over.
My bike almost never likes to instantly turnover. I bought the bike last year with 2600 miles on it and now it has 6k. Only sometimes when the engine is warm does it turn over on first crank. Its really annoying and kind of embarrassing. What could be the problem? Thank you in advance!
Hmmm, ......to me when an engine is cranking it IS turning over. It means the same thing. I believe what you mean is that the engine does not immediately start when you press the starter button
and the starter motor starts cranking and turning the engine over.
KM please note he identifies his scoot as an 04 in the headline.
Unibeck, DO NOT take KM's inquiry about using regular or premium gas as a recommendation for using premium gas in the vn750. If your vn750 is hard to start, premium gas will only make it worse. Premium is higher octane to resist pre-ignition, so by definition it has a higher ignition temperature.
Ma Kaw recommends regular gas.
At your next fill add half a bottle of Seafoam fuel system cleaner/conditioner
Thereafter add 2 or 3 ounces every 3rd or 4th tank full of gas, depending on how many miles per week or month you ride.
NGK are the usual brand of plugs installed in Japanese bikes at the factory.
IMHO NGK brand plugs are the best choice.
We usually advise upgrading to Iridium plugs when changing them out.
NGK Part Number DPR7EIX-9.
Also if you have a regular wet cell battery with 6 caps on top to add water, change it out for a Maintenance Free-Absorbed Glass Mat (MF-AGM) for more reliable starting.
Something like this Deka can be purchased locally too.
In Canada we have some experience with long winter storage and cold starts. After several years trying different winter storage methods, I now store the scoot under a shelter with a full tank of gas with a quarter to half a can of Seafoam poured in and run long enough to get it into the carbs. I bring the MF-AGM battery into the house as I do not have a small amperage battery maintainer. The past two riding seasons when I got the bike out of storage, I gave it full choke and cranked the starter over for a timed 30 seconds then let it rest for a minute. The engine started after about another 5 seconds of cranking.
Through the summer when starting cold it needed full choke for the first start of the day at 4 am. Maybe half choke after sitting for 8-9 hours at work, it would start at the first touch of the starter button. Warm starts take little or no choke and would start at a touch of the button. My '91 currently has about 30 K kilometers (20 K miles) on the clock.