Delkevic Exhaust System Install


Delkevic Exhaust System Install

Postby ezridermn » Mon Feb 22, 2016 3:59 pm

I'm in the process of installing a Delkevic exhaust system on my 82 CBX Prolink. I have the right side on the bike with the two outside pipes just barely attached to the studs. I have a question about installing the center down tube. I put the gasket on the bottom of the down tube and then pushed it in to the collector with some force but the pipe remains about 1.5 inches further out at the top than the other two downtubes.

Before I get too aggressive with it I thought I would check and see how other people fitted the center down tube when they installed the Delkevic exhaust system. Should I take a rubber mallet to it and just drive it in? Or is there some other technique I should use?

Thanks in advance for the help!
1982 Honda CBX
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Re: Delkevic Exhaust System Install

Postby daves79x » Mon Feb 22, 2016 8:50 pm

You are having the same trouble I had with the center pipes on the Delkevics. I think I ended up grinding part of the lower end of the center pipe off since it seemed to be hitting the inside of the collector before getting to the position it needed to be. I seem to remember that the center pipes did not seem to have quite the correct bend either. Took me forever to install. I'd also use your original split collars - theirs are pretty wimpy looking. Finned collars they supply are OK I guess, but I used the original of those too. Glad the system was on someone else's bike. Looks good once installed though. Sankei copies fit much better. I know, that's like saying 'you should have turned there'.

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Re: Delkevic Exhaust System Install

Postby ezridermn » Tue Feb 23, 2016 10:39 am

Thanks for your comments Dave. They are always helpful and appreciated!
1982 Honda CBX
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Re: Delkevic Exhaust System Install

Postby ezridermn » Wed Feb 24, 2016 3:46 pm

I contacted Delkevic UK and posed this question to them. They provided the following answer. I thought I would post it here in case it might help someone else out who is installing a Delkevic system. I have not tried this yet so I can't say how well it may or may not have worked. I'll post again after I have the pipes installed.

"Ideally you need to be fitting the centre pipe, gasket and clamp to the collector with the two fixed pipes and offer the whole right side to the bike, but making certain that the centre pipe clamp is left loose. Attach all 3 downpipes loosely to the cylinder head and whilst supporting the main body of the exhaust, attach the rear mounting bracket loosely to the bike (It must be attached to the exhaust before attaching it to the bike!).

Begin to gradually tighten the pipe flanges as they attach to the cylinder head. Once satisfied with the alignment at the cylinder head, tighten the rear hanger bracket and then finally tighten the centre pipe clamp.

Repeat the same process for the left hand side."
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Re: Delkevic Exhaust System Install

Postby NobleHops » Thu Feb 25, 2016 12:08 am

Nice of you to post that man, thanks.
I Do Vapor Blasting! http://www.cbxclub.com/forum/viewtopic.php?f=5&t=9881

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Re: Delkevic Exhaust System Install

Postby ezridermn » Sat Feb 27, 2016 2:24 pm

OK I got the Delkevic exhaust system installed this morning. I mounted the right side up per the instructions in my prior post. Went pretty well and only took about 20 minutes. The left side took much longer because I couldn't get all three pipes to line up at the exhaust ports. In the end like Dave said I cut about 1/4" off the middle down tube where it goes into the collector. Then with some pushing, shoving and a little rubber mallet it I got it to go together. Took me about an hour since I was trying to be as gentle as possible.

Now that they are on I like how they look. Here are a couple of pics...
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Re: Delkevic Exhaust System Install

Postby Lerouxseegers » Sat Mar 12, 2016 6:06 am

These pipes look awesome
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Re: Delkevic Exhaust System Install

Postby hondking » Sat Mar 31, 2018 6:45 pm

Have just fitted my new set and fitted perfect. I used Vaseline on the middle down pipe and it slid straight in
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