erm not sure, but i did saw he made adjustment on the power steering, radiator pump.. n so.. cause he was downthere  and the only nut bolt i can see from above is the powersteering one.. mine minor problem.. cause early morning the belt will sound. then when warm dee it'll remain quiet. even when cold start i rev the sound will go off for a while. just during idle it squeeks.. just tightened it, and all the minor sound is gone. now can hear noise from the engine block and the engine fan.

mind to ask u do u like driving fast??or will drive fast car??
if yes 185 surface is too small to bite on road.

not really on the tire material, rather more surface area more traction. also more width means theoretically not aerodynamic. also most width tire uses big rims means heavy inertia to rotate. hence bad in FC. More traction more grip and better handling. but loose out FC and top speed.

maybe the mech wanna try con u to buy another set of spark plug?

Yes there is a difference. If you are using EFi engines, you need to get spark plugs with resistors to prevent electrical damage to the ECU. These NGK spark plugs are noted with 'R', for example BKR5E-11, the R stands for resistor.

Carb engines do not have sensitive electronics like the ECU and can use any plugs.

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Added on December 27, 2007, 9:12 am
No, there are 2 types of plugs for engines with and without ECU.

What are Resistor Plugs? Well by now you might have realised that the major part of the resistance in the F Plug/Coil system is provided by the Plug Cap. Some bikes use Resistor Plugs, so another solution could be to just have a 0kohm Cap and Run Resistor Plugs in your bike, but not both!

MPG on my R80G/S went up about 10% when I realized I was running resistor plugs AND resistor caps and changed to zero Ohm caps. <DOH!>

NGK do make a resistor plug, the NGK DR8EA. The OEM cap was 1kohm. Substituting a 5kohm cap is probably OK.  A 0kohm cap without using a resistor plug like the DR8EA is NOT OK. If you use anything (but) more than 5k, you'll probably get less spark than you would with 5k due to impedance mismatch.  But using 10k would probably be just fine in practice.  But for good fuel economy DON'T use both a resistor cap AND a resistor plug. In other words, I don't think it really matters all that much one way or the other as far as making the bike run. Economy might suffer slightly. But would you really notice?

Resistor Plugs. I've been getting a lot of interference on my helmet comm. lately and one manufacturers website said the cure is to use "R" type plugs. I picked up the "R" version of the D8EA for my classic and have been reluctant to install it as the length of the plug seems to be different from the stock D8EA. Anyone used the NGK DR8EA. Better yet, anyone used on and found it actually cut down on the RF interference? Sean #1015 Ottawa Canada

I may be way off base, but I thought the resistor in the stock plug caps performed the same function as an "R" type plug. True? If so, adding an "R" plug would simply be adding more resistance to the spark circuit. It probably wouldn't make much difference in how the bike runs if the resistance isn't too high (for a while I used a 5kohm NGK resistor in one of my plug caps when the stock resistor went bad -- and my '99 ran just fine). Bob#550 (Olympia WA)

What Bob said. On my old Airhead, the mechanics kept replacing my R-plugs with Bosch plugs "to make it run right". Do my own work now, no more arguments...:-) But they were probably right. Consider putting a filter in the 12V power line (s) to the intercom system (assuming it's not strictly dry cell powered). See Radio Shack for options. Marty #436-Chicago-97 F650F.