1985 Honda CBX - Page 9 - Answered Questions & Fixed issues

Do the plugs spark out of the engine so you can see ...

A too tight tappet adjustment can do more than reduce mileage - it effectively changes the valve timing and can lead to burned valves and seats. It is best not to prejudge such situations - it is generally believed the expansion of metals when the engine is at working temperature causes the tappet clearance to reduce. This isn't always the case when an aluminium cylinder head is used. Aluminium expands a much greater amount than steel and so working temperature can cause the valve clearances to increase.

This sounds like it may be a vacuum leak. When more air than normal is leaking into the engine, the idle will be higher than normal. The easiest way to find a vacuum leak is to take some carburetor cleaner or WD-40 and spray it around the areas where you suspect a leak may exist. If the engine idle goes up when you spray, there is a leak around that area.

A carburetor rebuild kit costs around $20-30 on ebay. These are very simple carburetors. Once it is off the engine, it is simply a matter of removing the old parts, cleaning the carburetor body, and reassembly.

eBay https://www.google.com/search?safe=off&rlz=1C1QJDB_enCA643CA644&biw=1920&bih=937&sxsrf=ALeKk009wJb5RyjytGme77MUGI-EnwQ6wQ%3A1603995436309&ei=LAebX7m_EpuF9PwP64ipiA8&q=1978+Honda+Hawk+2+kick+starter+assembly ..

What do you mean by "burnt"? A black sooty plug suggests the engine is running a too rich a fuel mixture.A blistered, dry plug suggests the engine is running too hot.There are many reasons for a burnt plug including engine overheating, wrong or loose fitting spark plugs, wrong fuel air mixture or even an old dirty air filter.I suggest you take it to a good mechanic so they can look at the bike to see what other engine areas could be causing the issue.

Likely a fouled carburetor or water in the fuel bowl. Try draining all the fuel, see instructions in manual.

Take a clean dry fuel container to the gas station and get 1 gallon of fresh fuel. Add 1 ounce of Seafoam fuel treatment. Measure don't guess. Poor entire gallon into generator.

Start generator. If same problem, then carburetor is fouled and will need cleaning. You could try running with the treated fuel and it may clear the fouling. Otherwise a more thorough cleaning will be necessay.

https://www.bing.com/videos/search?q=Change+oil+of+Honda+TMX+155&FORM=HDRSC3

Sounds like it may have a fuel restriction. Check the fuel pressure at the fuel rail. Look for damaged fuel lines or a line that is close to an exhaust system. Possible a fuel pump going out. Does it do this when you are low on fuel and not when the tank is full? If so then the pump is overheating because the fuel is too low and not helping to cool the pump.

https://www.youtube.com/watch?v=Xrn58yenvBsIf you have clutch master cylinder and slave cylinder might need bleed air out.https://www.youtube.com/watch?v=wCj8QiIo4ssRemember when bleeding brakes keep the master cylinder full of oil or you will suck air back in line. Should have 2 hole in bottom of master cylinder. Make sure holes are not plugged. One the fluid goes out the other the fluid comes back in.https://www.youtube.com/watch?v=YP195yHIsIkhttps://www.motorcycleforum.com/threads/hydraulic-clutch-problems-88-honda-shadow.92072/https://www.youtube.com/watch?v=n2eMTnMhFew

here is the place for you https://www.carlsalter.com/honda-service-manuals.asp

It may due to the loose screw, go to the mechanic.

Hi, spark gap 0.7 all the beat.

https://www.hondashadow.net/threads/torque-specs.122143/ Read this post for the torque specs on the bolts.

i think it has some engine fault or engine oil level maybe low. you should check it properly and try to start it again.

theres a few workshop manuals that may help here https://www.carlsalter.com/honda-service-manuals.asp

https://www.manualslib.com/manual/811004/Honda-Jazz.html?page=378#manual

Cycle salvage shops in ur state etc hav parts. Archway in stlouis is huge. U cud try takn that switch apart to solve or just hotwiring when u start it. Buy a clymer or haynes manual for totalbike rebuild

https://www.vtxcafe.com/threads/starts-then-dies-then-will-not-start-again.72942/ https://www.vtxcafe.com/threads/bike-starts-then-dies.59937/ https://www.vtxcafe.com/threads/stalling-and-black-spark-plugs.51516/ https://www.vtxoa.com/threads/engine-stall-and-die-finally-fixed.328597/ https://www.youtube.com/watch?v=Tx9fb1Ytz8k https://www.youtube.com/watch?v=CymFLDrKNoQ

Snug, not loose. Between 6 to 9 ft lbs. torque on the bolts. Higher torque will strip aluminum threads.