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post #1 of 5 (permalink) Old 01-11-2020, 05:11 PM Thread Starter
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Any Tips?

I recently got a 1994 750 from my grandfather. It was running pretty rough and had a leak in the carb. Also coolant started spilling out of a metal hose on the left side. I assumed it was just the O-Ring. Anyway, I purchased a good used carb got the old one off after 3 hours and sawing off the air box(i plan on using the cone air filters anyway). I got the metal cooling hoses off and as I suspected the o-ring is toast so I’ll be picking up a replacement for that as well. I also took the water pump off to replace that while I’m here. My question is considering this is a really old bike that was not maintained well, is there anything else i should replace while I have all this stuff off? Any common problems I can address and fix before I put it all back together and have it break again next week. Thanks for any advice.
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post #2 of 5 (permalink) Old 01-11-2020, 05:21 PM
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I like to coat the o-ring and steel tube with grease, helps it seal and slows down the corrosion between the aluminum and steel.

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post #3 of 5 (permalink) Old 01-11-2020, 05:58 PM Thread Starter
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What kind of grease?
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post #4 of 5 (permalink) Old 01-12-2020, 02:18 PM
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If you have the side cover off to get to the water pump maybe replace the clutch? Drill the basket for coffee grinder syndrome fix.

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post #5 of 5 (permalink) Old 01-15-2020, 01:52 AM
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Welcome. An old Vulcan 750 that was not maintained well worries me a bit. The carbs can be reinstalled the oem way, I've done it. The airbox can also be removed without cutting it up. I've done that too. The first things I would check are the cam chain tensioners and final drive splines. Besides the stator, those are the two most common expensive failures on this bike. Get a Clymer service manual. If you have the owners manual, go to the maintenance section, and do EVERYTHING. These bikes don't seem to do well when neglected. I never had a problem with the "coffee grinder thing" I have experienced it, but discovered that simply warming the engine up to operating temperature the first ride of the day prevents it, and that is something I do with ALL vehicles. I have had the clutch plates warp, and cause the clutch to not disengage completely. My next to last Vulcan 750 was a bought new 2002 model, and I maintained it well. But the oem cam chain tensioners did fail, and the cam chain ran loose for a while. I replaced them with TOC manual tensioners. It failed due to a broken cam chain at 108,000 miles. My guess is the cam chains (there are four of them) sustained some damage before I installed the manual tensioners. Best of luck with it.

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1997 Vulcan 750, purchased about a week ago
2006 Sportster 1200 Low
2013 Royal Enfield Bullet 500, converted to carb
2001 Yamaha XT225, heavily modified
2004 Honda Rebel 250
1979 Vespa P200E
2002 Vulcan 750 parts bike
1994 Yamaha XT225 parts bike
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