Category: Motorcycle Repair

I have a 90' Suzuki 750 gsxr. when I started it this spring it wouldn't run without the choke on so I pulled the carbs off and cleaned them. me being me, I didn't take the jets out, I just sprayed them with gum out. I put the carbs back on, started the bike and was surprised to discover that the bike would not idle down (though it did run with out the choke) I turned the idle down (all the way) it made no difference. also when I cracked the throttle it would rev down very slowly
and would backfire (occasionally) through the muffler. also-the oddest thing- the 2 outside cylinders got very hot, while the 2 inside ones remain just get hot. as far as I can tell there is no mixture screw on the carbs. there is a pilot screw (I don't know what that does though). so-
I pulled the carbs back off, went completely through them (cleaning) including adjusting the butterflies so they close all the way when not open. I put them back on to reveal the same outcome. the only conclusion I can come to is that there is an air leak on the intake boot (manifold.) what do you think could be to blame?

I know you don't want to hear this but I think your carbs may still have some foreign matter clogged up in them. I suggest you either take them to a shop that can fully disassemble and clean or buy a book to tell you how to do it and then properly adjust the carbs for your bike.

For more information please see: http://www.repairmanual.com/motorcycles/1990/62/6/5867

Thanks.

RepairManual.com
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Category: Motorcycle Repair

I own a 1985 Honda Shadow. It has been running fine, but recently I have encountered a problem. It started off by what I thought to be a weak battery. The first time I kick started it and it ran somewhat well. However it did not start the second time so I had to kick start it again. This time I drove it around a bit to charge up the battery. I started to go up a hill and it started to lose power, so I turned around and went down the hill. When I got at the bottom it died. It would not start again, and now I don't know what it could be. Any suggestions?

Your ignition runs off the battery. Take your battery in to be checked and most likely replaced. You can check the battery yourself using a special tester available at any auto parts store that tests specific gravity of the battery fluid. A voltage test only tells half the story.

For more information on your bike please see: http://www.repairmanual.com/motorcycles/1985/27/0/444

Thanks.

RepairManual.com
http://www.RepairManual.com

Category: Motorcycle Repair

I've got a Honda CRF250X and over the winter I rebuilt my engine with new rings, cylinder head etc. It starts perfect but keeps sooting up the spark plug. The bike has plenty of top end power but it will not idle properly. What would cause this?

From what you've described it sounds like the carb is gunked up. Take the carb off and either bring it to someone who is qualified to clean and adjust it or give it good thorough cleaning yourself. Be sure to follow the section that details cleaning and adjusting the carb in the fuel section of your repair manual.

You can find repair items for your CRF250X here: http://www.repairmanual.com/motorcycles/2005/1/1/16403



Thanks.

RepairManual.com
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Category: Motorcycle Repair

I am looking for what would be the original manual that came with my 1986 Yamaha 700 Maxim from the factory. Is that a service manual? Thanks, Randy

Randy, That would be the owners manual.

The owners manual contains basic instructions for how to operate the machine and some maintenance advice. If you intend to service your vehicle on a regular basis I would suggest you seek out a factory of aftermarket service manual. A service manual will provide much more comprehensive repair information.

Yamaha made two Maxims in 1986 so depending on which one you have check out:

http://www.repairmanual.com/motorcycles/1986/69/0/3359
or
http://www.repairmanual.com/motorcycles/1986/69/0/3362

Thanks.

RepairManual.com
http://www.RepairManual.com