WR 450 F PLEASE HELP NEW HEAD GASKET FITTED HOW TO TIME ENGINE?
PLEASE WOULD SOMEONE SEND ME THE INSTRUCTIONS ON HOW TO TIME THE ENGINE FROM SCRATCH! A NEW HEAD GASKET WAS FITTED BUT I THINK THE TIMING IS OUT? NOTHING WHEN TRYING TO START OTHER THAN THE ODD BACKFIRE!!!!!!!!
HELP HELP HELP! PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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Re: WR 450 F PLEASE HELP NEW HEAD GASKET FITTED HOW TO...
Do yourself a favor > > purchase a factory service manual. I am not being flip when I say this. It sounds like someone has been into the engine and done who knows what. Ignition timing is simple enough but what if the prior owner messed with the overhead cam chain? OHV timing could be way off. Are the carburetors in sync and balanced? The manual should walk you through the service proceedures and settings. The manual costs a lot less than the repair shop but if you don't have the proper tools and knowledge of engine repair this engine is not one to just tinker with.
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there is really only two ways for oil to enter the oil (1) is the oil and water seals fitted on the water pump impellor or (2) the other is head gasket leak
the most common on MX bikes is the oil and water seal at the impellor (water pump)
if your not to mechanical minded then both of these issues you would be best to take to dealer to rectify as they bit tricky to do with out experience.
if you are mechanical minded then either problem is fairly cheap to fix about $25 for the oil water seals or about $70 for the head gasket
let me know if you want me to elaborate on either issue
good luck regards Jamie
The head is being held on by the gasket.
If all of the bolts are off gently hit the head with a rubber mallet. Or gently tap a thin putty knife between the head and the jug to seperate the two be very careful not to scratch either surface. Gentle is the key word
lots of luck. If you find this helpful please leave a good rating Thanks, Jack
It would be possible but probably too expensive, there are some private compliance certifying companies that do the compliance plates for many of the low volume imports. but you would need most of the WR electrics and muffler. Easier to start with a WR and fit the YZ cams.
So even if you can find a WR wreck that has the compliance plate and rebuild it with the YZ bits,it would still need the WR;s engine number
mine does the same, havent checked the problem yet but think it might needs rings, I overheated it once and blew a head gasket. It doesnt seem to affect power, as I completed the finke race but covered my boot and swing arm with oil.
Since you are asking this you do not have a manual or been able to locate the stamping on the outer engine(clutch)cover. I would call your selling dealer and ask the service department shop foreman. There may be a service bulletin or trick to get all the oil out of the engine/frame(if they still run through it like the 426 did) and the oil strainer as well as the oil filter. If you are wanting to just top it off, you might as well change it. It is a race bike intended for very frequent oil changes to insure the clutch and engine/valve train are adequately lubricated. If memory serves me correctly, you are to check the oil after running it for a moment. Call the service department. If they wont talk to you then you either did not buy your bike from them or you should buy your next one somewhere else.Since I take it you bought it used or you would have been instructed on all this as well as supplied a manual, I would buy a manual. I know all this because until 2003 my job was delivering units to new customers and explaining in specific detail how to start/operate/ and maintain the specific machine purchased. Unfortunately not all dealers employ someone to do this.