My rear exhaust pops like the rear cylinder is its out of sync. Could this be a valve adjustment thats needed?
My engine has solid lifters instead of hydrolic ones. They were in the motor when i bought it.
Its a 1960Fl, runs like top though.
Thanks,
Tom
Rear exhaust pops
Forum rules
Please do not start new topics here, but here: New Panhead and Flathead topics
Please do not start new topics here, but here: New Panhead and Flathead topics
-
- Inactive member
- Member
- Posts: 11
- Joined: Wed Aug 25, 2010 7:51 pm
- Bikes: 1960 Panhead FL Bobber
1960 Panhead Semi-restoration
2003 Custom Softail
1986 sportster - Location: New York
-
- Senior Member
- Posts: 953
- Joined: Tue Jan 08, 2008 12:32 am
- Bikes: 56 FLH, 2007 FLHRCI
- Location: Belleville, Ontario, Canada
- Has thanked: 49 times
- Been thanked: 28 times
Re: Rear exhaust pops
There are a few things to check:
1. Intake manifold leaks. Go to the knowledge base, carburetor and fuel system, and look for this topic. The member MBSKEAM has a great kit for this test.
2. Tuning of the low speed jet on the Carb. If you don't already have the service manual, check the knowledge base.
steve
1. Intake manifold leaks. Go to the knowledge base, carburetor and fuel system, and look for this topic. The member MBSKEAM has a great kit for this test.
2. Tuning of the low speed jet on the Carb. If you don't already have the service manual, check the knowledge base.
steve
-
- Inactive member
- Member
- Posts: 11
- Joined: Wed Aug 25, 2010 7:51 pm
- Bikes: 1960 Panhead FL Bobber
1960 Panhead Semi-restoration
2003 Custom Softail
1986 sportster - Location: New York
-
- Moderator
- Senior Member
- Posts: 3713
- Joined: Mon Dec 01, 2003 11:38 pm
- Bikes: '42 WLA X 2, '55FL, '93 Ultra Classic, '91 Fatboy, '97 883, '03 Rokon Trailbreaker, '83 GPz 750.
- Has thanked: 71 times
- Been thanked: 128 times
Re: Rear exhaust pops
i have found pops and backfires through the pipe are usually air leaks in the exhaust. -or- the bike is running lean from a carb condition or from a intake manifold leak
try putting the exhaust together with as tight fitting joints as possible and slather up the connections with high temp sillycone.
john
try putting the exhaust together with as tight fitting joints as possible and slather up the connections with high temp sillycone.
john
-
- Inactive member
- Member
- Posts: 11
- Joined: Wed Aug 25, 2010 7:51 pm
- Bikes: 1960 Panhead FL Bobber
1960 Panhead Semi-restoration
2003 Custom Softail
1986 sportster - Location: New York