I am a new member and just bought a used 1997 FLHPI injected police bike with 37K miles. It already had the stage 1 air cleaner kit, K&N filter, Andrews EV-27 cam, and fairly loud mufflers installed. The bike pops and rumbles on decel. I had the 30K service done at local dealer and verify the ignition was re-flashed for the stage 1 kit.
I checked the Champion RN12YC spark plugs (4000 miles old) before the service and they looked lean - all white on the insulators, no brown or tan color at all. The dealer said the ignition was properly re-flashed for stage 1 kit, but there is a revised re-flash available which I declined. Dealer also stated the plugs were OK but replaced them with H-D plugs anyway.
Also experiencing poor gas mileage, estimating about 16 mpg. I am used to racing two stroke motocross bikes, not sure if I am riding this bike properly regarding rpm. Trying to ride in the 2000-4000 rpm range.
Bike seems to run strong, does not smoke.
My questions:
1. Do you think the popping/rumbling is caused by the Andrews EV-27 cam and pipes ?
2. Is popping/rumbling normal for these mods ?
3. Would external ignition device like TFI help stop the popping ?
4. Are all white spark plug insulators acceptable for the Evo motor?
5. Any ideas on the poor mpg ?
6. Who makes the H-D brand oil filter and spark plugs ?
Regards,
Perry
I checked the Champion RN12YC spark plugs (4000 miles old) before the service and they looked lean - all white on the insulators, no brown or tan color at all. The dealer said the ignition was properly re-flashed for stage 1 kit, but there is a revised re-flash available which I declined. Dealer also stated the plugs were OK but replaced them with H-D plugs anyway.
Also experiencing poor gas mileage, estimating about 16 mpg. I am used to racing two stroke motocross bikes, not sure if I am riding this bike properly regarding rpm. Trying to ride in the 2000-4000 rpm range.
Bike seems to run strong, does not smoke.
My questions:
1. Do you think the popping/rumbling is caused by the Andrews EV-27 cam and pipes ?
2. Is popping/rumbling normal for these mods ?
3. Would external ignition device like TFI help stop the popping ?
4. Are all white spark plug insulators acceptable for the Evo motor?
5. Any ideas on the poor mpg ?
6. Who makes the H-D brand oil filter and spark plugs ?
Regards,
Perry