Help for Webmasters « back to results for ""
Below is a cache of http://www.dohertymachine.com/pdf/PowerVent-TwinKit-Installation-Instructions.pdf. It's a snapshot of the page taken as our search engine crawled the Web.
The web site itself may have changed. You can check the current page or check for previous versions at the Internet Archive. Yahoo! is not affiliated with the authors of this page or responsible for its content.
PowerVent
Twin
Kit
Part
#s
1122E
-
1122TC
-
1122S


PowerVent



Twin Kit Installation Instructions:
Twin Cam88 (all) - 93 to current Evolution Big Twins. And 91 to current Sportsters***
1.
Remove air cleaner assembly, air cleaner backing plate and the bolts that are threaded into the cylinder head
breather outlets.
2.
Install a PowerVent breather assembly on each cylinder head breather outlet, using a flat nylon washer (provided)
on each side of the banjo flange, insert new breather bolt thru flange, thread into cylinder head POSITION AS
DESIRED, Torque bolts 12-14 foot lbs (Evolution) 8-10 foot lbs (TC88) (Caution, Do not over tighten breather
bolts.)
3.
Optional outlet nipple installation: 3/8 nipples are provided for installation of an outlet hose -or filter if desired.
Tighten snug. (Do not over tighten)

**IMPORTANT** READ BEFORE STARTING MOTORCYCLE. After you have completed installation, start
engine, let idle, and check each vent to make sure they have an air pulse coming out of the outlet. Should you NOT
have ANY air coming out of the outlet recheck your installation for cause.
Service: Every 7500 miles or annually. Remove and Wash in hot soapy water until clean, shake out excess water,
reinstall.
CAUTION: Do not use SOLVENTS of any kind to clean. Do not blow out with compressed air, Damage will occur.

***SPORTSTERS equipped with a Screaming Eagle aftermarket air cleaner assembly. Discard the two round
spacers that were installed between the air cleaner backing plate and the cylinder head. Shorter versions of these
along with two special ported � inch diameter breather bolts are included in your kit, and should be assembled in the
following sequence. Using the breather hole in the cylinder head as a starting point, install, 1 flat nylon washer, the
Powervent, 1 flat nylon washer, insert breather bolt through Powervent and nylon washers. Next position Powervent
straight up and down and tighten breather bolts to 12 to 14 foot lbs of torque. Reinstall air cleaner backing plate,
insert 3/8 button-head bolts and flat washer through backing plate and into breather bolt standoff and tighten securely.
Reinstall filter element and cover.


Limited Warranty 1 Year

The sole obligation of Doherty Machine shall limited to the products to be found defective in either workmanship or material after the inspection
performed by Doherty Machine.
This limited warranty applies only to the original purchaser and only covers the repair or replacement of product at Doherty Machines discretion.
Doherty Machine shall not be responsible for any damage caused by defects or failure of these products. Doherty Machine shall not be responsible for any
consequential damage arising from any cause whatsoever, nor for labor, transportation or any related incurred costs due to the replacement or repair of
defective products.

Important Notices
The installation of these products may cause vehicles to be unable to be used on public highways, and the purchaser assumes all risk and liabilities
thereof. The names Twin Cam88, Sportster, Evolution and Screaming Eagle are registered trademarks of Harley Davidson Inc. Milwaukee, Wisconsin
U.S.A. and are used for reference purposes only.

Doherty Machine 1030 Sandretto Drive L Prescott, AZ 86305
(928) 541-7744 Fax (928) 541-7746
Questions/Comments about our products! Call or visit us at www.DohertyMachine.com

The names Doherty Machine and PowerVent are registered trademarks of Doherty Machine. United States and various Foreign
patents pending All rights reserved