I've had a little electrical problems on my 1988 shadow but nothing serious that some of you on here helped me straighten out. Last week I replaced the old NGK spark plugs with new NGK's that are exactly the same. The old ones seemed fine and normal coloration when pulled, the new ones are exactly the same but its had trouble starting. This morning was the first time i ever seen it puff a little white smoke. So i pulled the plugs and in only 1 week seem to be carbon fouled!?:shock: What am I missing why did the same plugs last so much longer before??