20 Most Recent 1988 Yamaha YX 600 Radian Questions & Answers

sounds like a voltage regular.

Take a piece of hose and use it as a sound tube. Place one end near ear and the other check around the engine to pinpoint noise.

Fuel petcock rebuild kits are widely available.
http://www.sudco.com/k&lfuelyam.html

I would suggest that you drain all four carburetors. The drain plugs are on the float bowl at the bottom of each carb. My guess is that condensation in the gas tank has made it's way into the carb (s) and bikes don't tend to run well on water. Clean the air filter while you are at it. Please rate my answer. Thanks.

it may only lock if the handbars are on full lock, usually to the left, try wiggling the bars at full left lock as you try the key

I would get now bearings

There can be two issues related to this problem.
The front wheel can be off balance on the bike. This means you will need to balance the wheel using a wheel balancer.
Secondly the wheel bearing could be faulty and result in wobble. You will need to check the front assembly fully, check the suspension and shaft.

I don't usually recommend this to motorcycle owners, but try removing the gas cap when this happens.
Gary

yeh i'm here

The motor oil lubricates both the engine and the transmission. Use only a JASO MA certified motorcycle oil. Automotive oil uses different additives and will shorten the life of your wet clutch and transmission gears. Shell Rotella T Synthetic (15w-40 about $22) and Shell Rotella standard oil ($12 a gallon) for diesel engines , both are JASO MA rated for motorcycles.10w-40 oil is good for cold climate. 20w-50 for hot climate/touring. Synthetic oil will make your cycle run cooler and shift easier. For the engine you will probably need between 3 and four quarts of oil, an oil filter,and a drain plug washer . Pour in three quarts and check the oil level by placing your motorcycle on the center standard looking at looking at the dip stick. Run the motor to circulate the oil, recheck the level, and top up as needed.
If changing the oil filter you will have to run the motor to get an accurate oil level reading.

okay...these are general to Yamaha igniter systems...
so bike is in neutral...shows neutral, kill switch on...
Test each plug cap with a new spark plug...if one or more getting no spark....
Unhook the pickup coil harness and test the resistance (the P U coils located in left front crankcase cover with stator. If resistance tests out fine, ensure the connector is clean and connect.
Now test that both ignition coil packs primary and secondary resistances are within spec.
Verify the ignition coil packs are getting battery voltage to the primary terminal (often a red/white wire).
Ensure the igniter (the ignition black box) also called TCI is getting battery voltage on its supply.
Ensure all connectors clean to TCI.
The only other issue may be the interlocks are trying to shut down ignition....typically a black/white wire from the igniter goes to sidestand relay, tip over switch....both shut down ignition by grounding the control side of the TCI...could be they are partially grounding allowing minimal ignition..

It sound like your timing is off.Have you had the cam out?Has the grizzly ever ran wright?Hope this gets you going in the right direction.
D.

maybe changing the gage might help.

You didn't say what year the bike is so I couldn't check for availability. So here's what you do > Go to the site below where you can see a parts diagram for your specific bike. You will select the actual brand, year, model, etc., once you go to the site. Part numbers and prices are also shown. You can order parts from this site. In the event no price is shown on a particular part and/or the notation "Not Available" is in the description, the part is not in stock. www.babbittsonline.com/pages/parts/viewbybrandand/parts.aspx

This is the most likely place you will find what you need.