My harley sportster 1200 xlh 1990 seams to be running rich but i have now noticed that she is not fireing on the front cylender on initial starting but when it starts it cuts in what could this be have replaced sparks and plug leads

SOURCE: spark plug

The proper air gap is .032 to .036 depending on spark plug brand.

SOURCE: spark plug

The proper air gap is .032 to .036 depending on spark plug brand.

SOURCE: I have 2000 xlh sportster 1200 the bike idles fine

It sounds electrical and as it's a Sporty, I suggest a temperature-related dry joint opening up in the wiring. One popular candidate would be the earthing strap. It's worth checking continuity with a VOM when engine is hot. It may have a vibration crack. 66C is quite cool for a sportster oil temperature, so I guess you have this problem on every long ride? Good Luck.

SOURCE: 2003 Harley Davidson Sportster 1200 Custom Tachometer kit

The only idea that i can come up with is that you dont have a good ground..or the guage was bad when you bought it..i hope this..Keith

Arnie Burke

• 7339 Answers
• Posted on Aug 20, 2009

SOURCE: how do i adjust the carb for a lean idle and a

careful please-ajust r for pros specially wen it comes to jets-to lean or to rich can fry an engine-u can do some studying in library sec 629 or purchase books on carb procedures